/*
 * Copyright 2010-2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 * 
 *  http://aws.amazon.com/apache2.0
 * 
 * or in the "license" file accompanying this file. This file is distributed
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */
package com.amazonaws.services.ec2.model;

import java.io.Serializable;

import com.amazonaws.AmazonWebServiceRequest;
import com.amazonaws.Request;
import com.amazonaws.services.ec2.model.transform.DescribeInstancesRequestMarshaller;

/**
 * Container for the parameters to the {@link com.amazonaws.services.ec2.AmazonEC2#describeInstances(DescribeInstancesRequest) DescribeInstances operation}.
 * <p>
 * Describes one or more of your instances.
 * </p>
 * <p>
 * If you specify one or more instance IDs, Amazon EC2 returns
 * information for those instances. If you do not specify instance IDs,
 * Amazon EC2 returns information for all relevant instances. If you
 * specify an instance ID that is not valid, an error is returned. If you
 * specify an instance that you do not own, it is not included in the
 * returned results.
 * </p>
 * <p>
 * Recently terminated instances might appear in the returned results.
 * This interval is usually less than one hour.
 * </p>
 *
 * @see com.amazonaws.services.ec2.AmazonEC2#describeInstances(DescribeInstancesRequest)
 */
public class DescribeInstancesRequest extends AmazonWebServiceRequest implements Serializable, DryRunSupportedRequest<DescribeInstancesRequest> {

    /**
     * One or more instance IDs. <p>Default: Describes all your instances.
     */
    private com.amazonaws.internal.ListWithAutoConstructFlag<String> instanceIds;

    /**
     * One or more filters. <ul> <li> <p><code>affinity</code> - The affinity
     * setting for an instance running on a Dedicated host
     * (<code>default</code> | <code>host</code>). </li> <li>
     * <p><code>architecture</code> - The instance architecture
     * (<code>i386</code> | <code>x86_64</code>). </li> <li>
     * <p><code>availability-zone</code> - The Availability Zone of the
     * instance. </li> <li> <p><code>block-device-mapping.attach-time</code>
     * - The attach time for an EBS volume mapped to the instance, for
     * example, <code>2010-09-15T17:15:20.000Z</code>. </li> <li>
     * <p><code>block-device-mapping.delete-on-termination</code> - A Boolean
     * that indicates whether the EBS volume is deleted on instance
     * termination. </li> <li>
     * <p><code>block-device-mapping.device-name</code> - The device name for
     * the EBS volume (for example, <code>/dev/sdh</code> or
     * <code>xvdh</code>). </li> <li>
     * <p><code>block-device-mapping.status</code> - The status for the EBS
     * volume (<code>attaching</code> | <code>attached</code> |
     * <code>detaching</code> | <code>detached</code>). </li> <li>
     * <p><code>block-device-mapping.volume-id</code> - The volume ID of the
     * EBS volume. </li> <li> <p><code>client-token</code> - The idempotency
     * token you provided when you launched the instance. </li> <li>
     * <p><code>dns-name</code> - The public DNS name of the instance. </li>
     * <li> <p><code>group-id</code> - The ID of the security group for the
     * instance. EC2-Classic only. </li> <li> <p><code>group-name</code> -
     * The name of the security group for the instance. EC2-Classic only.
     * </li> <li> <p><code>host-Id</code> - The ID of the Dedicated host on
     * which the instance is running, if applicable. </li> <li>
     * <p><code>hypervisor</code> - The hypervisor type of the instance
     * (<code>ovm</code> | <code>xen</code>). </li> <li>
     * <p><code>iam-instance-profile.arn</code> - The instance profile
     * associated with the instance. Specified as an ARN. </li> <li>
     * <p><code>image-id</code> - The ID of the image used to launch the
     * instance. </li> <li> <p><code>instance-id</code> - The ID of the
     * instance. </li> <li> <p><code>instance-lifecycle</code> - Indicates
     * whether this is a Spot Instance or a Scheduled Instance
     * (<code>spot</code> | <code>scheduled</code>). </li> <li>
     * <p><code>instance-state-code</code> - The state of the instance, as a
     * 16-bit unsigned integer. The high byte is an opaque internal value and
     * should be ignored. The low byte is set based on the state represented.
     * The valid values are: 0 (pending), 16 (running), 32 (shutting-down),
     * 48 (terminated), 64 (stopping), and 80 (stopped). </li> <li>
     * <p><code>instance-state-name</code> - The state of the instance
     * (<code>pending</code> | <code>running</code> |
     * <code>shutting-down</code> | <code>terminated</code> |
     * <code>stopping</code> | <code>stopped</code>). </li> <li>
     * <p><code>instance-type</code> - The type of instance (for example,
     * <code>t2.micro</code>). </li> <li> <p><code>instance.group-id</code> -
     * The ID of the security group for the instance. </li> <li>
     * <p><code>instance.group-name</code> - The name of the security group
     * for the instance. </li> <li> <p><code>ip-address</code> - The public
     * IP address of the instance. </li> <li> <p><code>kernel-id</code> - The
     * kernel ID. </li> <li> <p><code>key-name</code> - The name of the key
     * pair used when the instance was launched. </li> <li>
     * <p><code>launch-index</code> - When launching multiple instances, this
     * is the index for the instance in the launch group (for example, 0, 1,
     * 2, and so on). </li> <li> <p><code>launch-time</code> - The time when
     * the instance was launched. </li> <li> <p><code>monitoring-state</code>
     * - Indicates whether monitoring is enabled for the instance
     * (<code>disabled</code> | <code>enabled</code>). </li> <li>
     * <p><code>owner-id</code> - The AWS account ID of the instance owner.
     * </li> <li> <p><code>placement-group-name</code> - The name of the
     * placement group for the instance. </li> <li> <p><code>platform</code>
     * - The platform. Use <code>windows</code> if you have Windows
     * instances; otherwise, leave blank. </li> <li>
     * <p><code>private-dns-name</code> - The private DNS name of the
     * instance. </li> <li> <p><code>private-ip-address</code> - The private
     * IP address of the instance. </li> <li> <p><code>product-code</code> -
     * The product code associated with the AMI used to launch the instance.
     * </li> <li> <p><code>product-code.type</code> - The type of product
     * code (<code>devpay</code> | <code>marketplace</code>). </li> <li>
     * <p><code>ramdisk-id</code> - The RAM disk ID. </li> <li>
     * <p><code>reason</code> - The reason for the current state of the
     * instance (for example, shows "User Initiated [date]" when you stop or
     * terminate the instance). Similar to the state-reason-code filter.
     * </li> <li> <p><code>requester-id</code> - The ID of the entity that
     * launched the instance on your behalf (for example, AWS Management
     * Console, Auto Scaling, and so on). </li> <li>
     * <p><code>reservation-id</code> - The ID of the instance's reservation.
     * A reservation ID is created any time you launch an instance. A
     * reservation ID has a one-to-one relationship with an instance launch
     * request, but can be associated with more than one instance if you
     * launch multiple instances using the same launch request. For example,
     * if you launch one instance, you'll get one reservation ID. If you
     * launch ten instances using the same launch request, you'll also get
     * one reservation ID. </li> <li> <p><code>root-device-name</code> - The
     * name of the root device for the instance (for example,
     * <code>/dev/sda1</code> or <code>/dev/xvda</code>). </li> <li>
     * <p><code>root-device-type</code> - The type of root device that the
     * instance uses (<code>ebs</code> | <code>instance-store</code>). </li>
     * <li> <p><code>source-dest-check</code> - Indicates whether the
     * instance performs source/destination checking. A value of
     * <code>true</code> means that checking is enabled, and
     * <code>false</code> means checking is disabled. The value must be
     * <code>false</code> for the instance to perform network address
     * translation (NAT) in your VPC. </li> <li>
     * <p><code>spot-instance-request-id</code> - The ID of the Spot instance
     * request. </li> <li> <p><code>state-reason-code</code> - The reason
     * code for the state change. </li> <li>
     * <p><code>state-reason-message</code> - A message that describes the
     * state change. </li> <li> <p><code>subnet-id</code> - The ID of the
     * subnet for the instance. </li> <li>
     * <p><code>tag</code>:<i>key</i>=<i>value</i> - The key/value
     * combination of a tag assigned to the resource, where
     * <code>tag</code>:<i>key</i> is the tag's key. </li> <li>
     * <p><code>tag-key</code> - The key of a tag assigned to the resource.
     * This filter is independent of the <code>tag-value</code> filter. For
     * example, if you use both the filter "tag-key=Purpose" and the filter
     * "tag-value=X", you get any resources assigned both the tag key Purpose
     * (regardless of what the tag's value is), and the tag value X
     * (regardless of what the tag's key is). If you want to list only
     * resources where Purpose is X, see the
     * <code>tag</code>:<i>key</i>=<i>value</i> filter. </li> <li>
     * <p><code>tag-value</code> - The value of a tag assigned to the
     * resource. This filter is independent of the <code>tag-key</code>
     * filter. </li> <li> <p><code>tenancy</code> - The tenancy of an
     * instance (<code>dedicated</code> | <code>default</code> |
     * <code>host</code>). </li> <li> <p><code>virtualization-type</code> -
     * The virtualization type of the instance (<code>paravirtual</code> |
     * <code>hvm</code>). </li> <li> <p><code>vpc-id</code> - The ID of the
     * VPC that the instance is running in. </li> <li>
     * <p><code>network-interface.description</code> - The description of the
     * network interface. </li> <li>
     * <p><code>network-interface.subnet-id</code> - The ID of the subnet for
     * the network interface. </li> <li>
     * <p><code>network-interface.vpc-id</code> - The ID of the VPC for the
     * network interface. </li> <li>
     * <p><code>network-interface.network-interface-id</code> - The ID of the
     * network interface. </li> <li>
     * <p><code>network-interface.owner-id</code> - The ID of the owner of
     * the network interface. </li> <li>
     * <p><code>network-interface.availability-zone</code> - The Availability
     * Zone for the network interface. </li> <li>
     * <p><code>network-interface.requester-id</code> - The requester ID for
     * the network interface. </li> <li>
     * <p><code>network-interface.requester-managed</code> - Indicates
     * whether the network interface is being managed by AWS. </li> <li>
     * <p><code>network-interface.status</code> - The status of the network
     * interface (<code>available</code>) | <code>in-use</code>). </li> <li>
     * <p><code>network-interface.mac-address</code> - The MAC address of the
     * network interface. </li> <li>
     * <p><code>network-interface.private-dns-name</code> - The private DNS
     * name of the network interface. </li> <li>
     * <p><code>network-interface.source-dest-check</code> - Whether the
     * network interface performs source/destination checking. A value of
     * <code>true</code> means checking is enabled, and <code>false</code>
     * means checking is disabled. The value must be <code>false</code> for
     * the network interface to perform network address translation (NAT) in
     * your VPC. </li> <li> <p><code>network-interface.group-id</code> - The
     * ID of a security group associated with the network interface. </li>
     * <li> <p><code>network-interface.group-name</code> - The name of a
     * security group associated with the network interface. </li> <li>
     * <p><code>network-interface.attachment.attachment-id</code> - The ID of
     * the interface attachment. </li> <li>
     * <p><code>network-interface.attachment.instance-id</code> - The ID of
     * the instance to which the network interface is attached. </li> <li>
     * <p><code>network-interface.attachment.instance-owner-id</code> - The
     * owner ID of the instance to which the network interface is attached.
     * </li> <li>
     * <p><code>network-interface.addresses.private-ip-address</code> - The
     * private IP address associated with the network interface. </li> <li>
     * <p><code>network-interface.attachment.device-index</code> - The device
     * index to which the network interface is attached. </li> <li>
     * <p><code>network-interface.attachment.status</code> - The status of
     * the attachment (<code>attaching</code> | <code>attached</code> |
     * <code>detaching</code> | <code>detached</code>). </li> <li>
     * <p><code>network-interface.attachment.attach-time</code> - The time
     * that the network interface was attached to an instance. </li> <li>
     * <p><code>network-interface.attachment.delete-on-termination</code> -
     * Specifies whether the attachment is deleted when an instance is
     * terminated. </li> <li>
     * <p><code>network-interface.addresses.primary</code> - Specifies
     * whether the IP address of the network interface is the primary private
     * IP address. </li> <li>
     * <p><code>network-interface.addresses.association.public-ip</code> -
     * The ID of the association of an Elastic IP address with a network
     * interface. </li> <li>
     * <p><code>network-interface.addresses.association.ip-owner-id</code> -
     * The owner ID of the private IP address associated with the network
     * interface. </li> <li> <p><code>association.public-ip</code> - The
     * address of the Elastic IP address bound to the network interface.
     * </li> <li> <p><code>association.ip-owner-id</code> - The owner of the
     * Elastic IP address associated with the network interface. </li> <li>
     * <p><code>association.allocation-id</code> - The allocation ID returned
     * when you allocated the Elastic IP address for your network interface.
     * </li> <li> <p><code>association.association-id</code> - The
     * association ID returned when the network interface was associated with
     * an IP address. </li> </ul>
     */
    private com.amazonaws.internal.ListWithAutoConstructFlag<Filter> filters;

    /**
     * The token to request the next page of results.
     */
    private String nextToken;

    /**
     * The maximum number of results to return in a single call. To retrieve
     * the remaining results, make another call with the returned
     * <code>NextToken</code> value. This value can be between 5 and 1000.
     * You cannot specify this parameter and the instance IDs parameter or
     * tag filters in the same call.
     */
    private Integer maxResults;

    /**
     * One or more instance IDs. <p>Default: Describes all your instances.
     *
     * @return One or more instance IDs. <p>Default: Describes all your instances.
     */
    public java.util.List<String> getInstanceIds() {
        if (instanceIds == null) {
              instanceIds = new com.amazonaws.internal.ListWithAutoConstructFlag<String>();
              instanceIds.setAutoConstruct(true);
        }
        return instanceIds;
    }
    
    /**
     * One or more instance IDs. <p>Default: Describes all your instances.
     *
     * @param instanceIds One or more instance IDs. <p>Default: Describes all your instances.
     */
    public void setInstanceIds(java.util.Collection<String> instanceIds) {
        if (instanceIds == null) {
            this.instanceIds = null;
            return;
        }
        com.amazonaws.internal.ListWithAutoConstructFlag<String> instanceIdsCopy = new com.amazonaws.internal.ListWithAutoConstructFlag<String>(instanceIds.size());
        instanceIdsCopy.addAll(instanceIds);
        this.instanceIds = instanceIdsCopy;
    }
    
    /**
     * One or more instance IDs. <p>Default: Describes all your instances.
     * <p>
     * Returns a reference to this object so that method calls can be chained together.
     *
     * @param instanceIds One or more instance IDs. <p>Default: Describes all your instances.
     *
     * @return A reference to this updated object so that method calls can be chained
     *         together.
     */
    public DescribeInstancesRequest withInstanceIds(String... instanceIds) {
        if (getInstanceIds() == null) setInstanceIds(new java.util.ArrayList<String>(instanceIds.length));
        for (String value : instanceIds) {
            getInstanceIds().add(value);
        }
        return this;
    }
    
    /**
     * One or more instance IDs. <p>Default: Describes all your instances.
     * <p>
     * Returns a reference to this object so that method calls can be chained together.
     *
     * @param instanceIds One or more instance IDs. <p>Default: Describes all your instances.
     *
     * @return A reference to this updated object so that method calls can be chained
     *         together.
     */
    public DescribeInstancesRequest withInstanceIds(java.util.Collection<String> instanceIds) {
        if (instanceIds == null) {
            this.instanceIds = null;
        } else {
            com.amazonaws.internal.ListWithAutoConstructFlag<String> instanceIdsCopy = new com.amazonaws.internal.ListWithAutoConstructFlag<String>(instanceIds.size());
            instanceIdsCopy.addAll(instanceIds);
            this.instanceIds = instanceIdsCopy;
        }

        return this;
    }

    /**
     * One or more filters. <ul> <li> <p><code>affinity</code> - The affinity
     * setting for an instance running on a Dedicated host
     * (<code>default</code> | <code>host</code>). </li> <li>
     * <p><code>architecture</code> - The instance architecture
     * (<code>i386</code> | <code>x86_64</code>). </li> <li>
     * <p><code>availability-zone</code> - The Availability Zone of the
     * instance. </li> <li> <p><code>block-device-mapping.attach-time</code>
     * - The attach time for an EBS volume mapped to the instance, for
     * example, <code>2010-09-15T17:15:20.000Z</code>. </li> <li>
     * <p><code>block-device-mapping.delete-on-termination</code> - A Boolean
     * that indicates whether the EBS volume is deleted on instance
     * termination. </li> <li>
     * <p><code>block-device-mapping.device-name</code> - The device name for
     * the EBS volume (for example, <code>/dev/sdh</code> or
     * <code>xvdh</code>). </li> <li>
     * <p><code>block-device-mapping.status</code> - The status for the EBS
     * volume (<code>attaching</code> | <code>attached</code> |
     * <code>detaching</code> | <code>detached</code>). </li> <li>
     * <p><code>block-device-mapping.volume-id</code> - The volume ID of the
     * EBS volume. </li> <li> <p><code>client-token</code> - The idempotency
     * token you provided when you launched the instance. </li> <li>
     * <p><code>dns-name</code> - The public DNS name of the instance. </li>
     * <li> <p><code>group-id</code> - The ID of the security group for the
     * instance. EC2-Classic only. </li> <li> <p><code>group-name</code> -
     * The name of the security group for the instance. EC2-Classic only.
     * </li> <li> <p><code>host-Id</code> - The ID of the Dedicated host on
     * which the instance is running, if applicable. </li> <li>
     * <p><code>hypervisor</code> - The hypervisor type of the instance
     * (<code>ovm</code> | <code>xen</code>). </li> <li>
     * <p><code>iam-instance-profile.arn</code> - The instance profile
     * associated with the instance. Specified as an ARN. </li> <li>
     * <p><code>image-id</code> - The ID of the image used to launch the
     * instance. </li> <li> <p><code>instance-id</code> - The ID of the
     * instance. </li> <li> <p><code>instance-lifecycle</code> - Indicates
     * whether this is a Spot Instance or a Scheduled Instance
     * (<code>spot</code> | <code>scheduled</code>). </li> <li>
     * <p><code>instance-state-code</code> - The state of the instance, as a
     * 16-bit unsigned integer. The high byte is an opaque internal value and
     * should be ignored. The low byte is set based on the state represented.
     * The valid values are: 0 (pending), 16 (running), 32 (shutting-down),
     * 48 (terminated), 64 (stopping), and 80 (stopped). </li> <li>
     * <p><code>instance-state-name</code> - The state of the instance
     * (<code>pending</code> | <code>running</code> |
     * <code>shutting-down</code> | <code>terminated</code> |
     * <code>stopping</code> | <code>stopped</code>). </li> <li>
     * <p><code>instance-type</code> - The type of instance (for example,
     * <code>t2.micro</code>). </li> <li> <p><code>instance.group-id</code> -
     * The ID of the security group for the instance. </li> <li>
     * <p><code>instance.group-name</code> - The name of the security group
     * for the instance. </li> <li> <p><code>ip-address</code> - The public
     * IP address of the instance. </li> <li> <p><code>kernel-id</code> - The
     * kernel ID. </li> <li> <p><code>key-name</code> - The name of the key
     * pair used when the instance was launched. </li> <li>
     * <p><code>launch-index</code> - When launching multiple instances, this
     * is the index for the instance in the launch group (for example, 0, 1,
     * 2, and so on). </li> <li> <p><code>launch-time</code> - The time when
     * the instance was launched. </li> <li> <p><code>monitoring-state</code>
     * - Indicates whether monitoring is enabled for the instance
     * (<code>disabled</code> | <code>enabled</code>). </li> <li>
     * <p><code>owner-id</code> - The AWS account ID of the instance owner.
     * </li> <li> <p><code>placement-group-name</code> - The name of the
     * placement group for the instance. </li> <li> <p><code>platform</code>
     * - The platform. Use <code>windows</code> if you have Windows
     * instances; otherwise, leave blank. </li> <li>
     * <p><code>private-dns-name</code> - The private DNS name of the
     * instance. </li> <li> <p><code>private-ip-address</code> - The private
     * IP address of the instance. </li> <li> <p><code>product-code</code> -
     * The product code associated with the AMI used to launch the instance.
     * </li> <li> <p><code>product-code.type</code> - The type of product
     * code (<code>devpay</code> | <code>marketplace</code>). </li> <li>
     * <p><code>ramdisk-id</code> - The RAM disk ID. </li> <li>
     * <p><code>reason</code> - The reason for the current state of the
     * instance (for example, shows "User Initiated [date]" when you stop or
     * terminate the instance). Similar to the state-reason-code filter.
     * </li> <li> <p><code>requester-id</code> - The ID of the entity that
     * launched the instance on your behalf (for example, AWS Management
     * Console, Auto Scaling, and so on). </li> <li>
     * <p><code>reservation-id</code> - The ID of the instance's reservation.
     * A reservation ID is created any time you launch an instance. A
     * reservation ID has a one-to-one relationship with an instance launch
     * request, but can be associated with more than one instance if you
     * launch multiple instances using the same launch request. For example,
     * if you launch one instance, you'll get one reservation ID. If you
     * launch ten instances using the same launch request, you'll also get
     * one reservation ID. </li> <li> <p><code>root-device-name</code> - The
     * name of the root device for the instance (for example,
     * <code>/dev/sda1</code> or <code>/dev/xvda</code>). </li> <li>
     * <p><code>root-device-type</code> - The type of root device that the
     * instance uses (<code>ebs</code> | <code>instance-store</code>). </li>
     * <li> <p><code>source-dest-check</code> - Indicates whether the
     * instance performs source/destination checking. A value of
     * <code>true</code> means that checking is enabled, and
     * <code>false</code> means checking is disabled. The value must be
     * <code>false</code> for the instance to perform network address
     * translation (NAT) in your VPC. </li> <li>
     * <p><code>spot-instance-request-id</code> - The ID of the Spot instance
     * request. </li> <li> <p><code>state-reason-code</code> - The reason
     * code for the state change. </li> <li>
     * <p><code>state-reason-message</code> - A message that describes the
     * state change. </li> <li> <p><code>subnet-id</code> - The ID of the
     * subnet for the instance. </li> <li>
     * <p><code>tag</code>:<i>key</i>=<i>value</i> - The key/value
     * combination of a tag assigned to the resource, where
     * <code>tag</code>:<i>key</i> is the tag's key. </li> <li>
     * <p><code>tag-key</code> - The key of a tag assigned to the resource.
     * This filter is independent of the <code>tag-value</code> filter. For
     * example, if you use both the filter "tag-key=Purpose" and the filter
     * "tag-value=X", you get any resources assigned both the tag key Purpose
     * (regardless of what the tag's value is), and the tag value X
     * (regardless of what the tag's key is). If you want to list only
     * resources where Purpose is X, see the
     * <code>tag</code>:<i>key</i>=<i>value</i> filter. </li> <li>
     * <p><code>tag-value</code> - The value of a tag assigned to the
     * resource. This filter is independent of the <code>tag-key</code>
     * filter. </li> <li> <p><code>tenancy</code> - The tenancy of an
     * instance (<code>dedicated</code> | <code>default</code> |
     * <code>host</code>). </li> <li> <p><code>virtualization-type</code> -
     * The virtualization type of the instance (<code>paravirtual</code> |
     * <code>hvm</code>). </li> <li> <p><code>vpc-id</code> - The ID of the
     * VPC that the instance is running in. </li> <li>
     * <p><code>network-interface.description</code> - The description of the
     * network interface. </li> <li>
     * <p><code>network-interface.subnet-id</code> - The ID of the subnet for
     * the network interface. </li> <li>
     * <p><code>network-interface.vpc-id</code> - The ID of the VPC for the
     * network interface. </li> <li>
     * <p><code>network-interface.network-interface-id</code> - The ID of the
     * network interface. </li> <li>
     * <p><code>network-interface.owner-id</code> - The ID of the owner of
     * the network interface. </li> <li>
     * <p><code>network-interface.availability-zone</code> - The Availability
     * Zone for the network interface. </li> <li>
     * <p><code>network-interface.requester-id</code> - The requester ID for
     * the network interface. </li> <li>
     * <p><code>network-interface.requester-managed</code> - Indicates
     * whether the network interface is being managed by AWS. </li> <li>
     * <p><code>network-interface.status</code> - The status of the network
     * interface (<code>available</code>) | <code>in-use</code>). </li> <li>
     * <p><code>network-interface.mac-address</code> - The MAC address of the
     * network interface. </li> <li>
     * <p><code>network-interface.private-dns-name</code> - The private DNS
     * name of the network interface. </li> <li>
     * <p><code>network-interface.source-dest-check</code> - Whether the
     * network interface performs source/destination checking. A value of
     * <code>true</code> means checking is enabled, and <code>false</code>
     * means checking is disabled. The value must be <code>false</code> for
     * the network interface to perform network address translation (NAT) in
     * your VPC. </li> <li> <p><code>network-interface.group-id</code> - The
     * ID of a security group associated with the network interface. </li>
     * <li> <p><code>network-interface.group-name</code> - The name of a
     * security group associated with the network interface. </li> <li>
     * <p><code>network-interface.attachment.attachment-id</code> - The ID of
     * the interface attachment. </li> <li>
     * <p><code>network-interface.attachment.instance-id</code> - The ID of
     * the instance to which the network interface is attached. </li> <li>
     * <p><code>network-interface.attachment.instance-owner-id</code> - The
     * owner ID of the instance to which the network interface is attached.
     * </li> <li>
     * <p><code>network-interface.addresses.private-ip-address</code> - The
     * private IP address associated with the network interface. </li> <li>
     * <p><code>network-interface.attachment.device-index</code> - The device
     * index to which the network interface is attached. </li> <li>
     * <p><code>network-interface.attachment.status</code> - The status of
     * the attachment (<code>attaching</code> | <code>attached</code> |
     * <code>detaching</code> | <code>detached</code>). </li> <li>
     * <p><code>network-interface.attachment.attach-time</code> - The time
     * that the network interface was attached to an instance. </li> <li>
     * <p><code>network-interface.attachment.delete-on-termination</code> -
     * Specifies whether the attachment is deleted when an instance is
     * terminated. </li> <li>
     * <p><code>network-interface.addresses.primary</code> - Specifies
     * whether the IP address of the network interface is the primary private
     * IP address. </li> <li>
     * <p><code>network-interface.addresses.association.public-ip</code> -
     * The ID of the association of an Elastic IP address with a network
     * interface. </li> <li>
     * <p><code>network-interface.addresses.association.ip-owner-id</code> -
     * The owner ID of the private IP address associated with the network
     * interface. </li> <li> <p><code>association.public-ip</code> - The
     * address of the Elastic IP address bound to the network interface.
     * </li> <li> <p><code>association.ip-owner-id</code> - The owner of the
     * Elastic IP address associated with the network interface. </li> <li>
     * <p><code>association.allocation-id</code> - The allocation ID returned
     * when you allocated the Elastic IP address for your network interface.
     * </li> <li> <p><code>association.association-id</code> - The
     * association ID returned when the network interface was associated with
     * an IP address. </li> </ul>
     *
     * @return One or more filters. <ul> <li> <p><code>affinity</code> - The affinity
     *         setting for an instance running on a Dedicated host
     *         (<code>default</code> | <code>host</code>). </li> <li>
     *         <p><code>architecture</code> - The instance architecture
     *         (<code>i386</code> | <code>x86_64</code>). </li> <li>
     *         <p><code>availability-zone</code> - The Availability Zone of the
     *         instance. </li> <li> <p><code>block-device-mapping.attach-time</code>
     *         - The attach time for an EBS volume mapped to the instance, for
     *         example, <code>2010-09-15T17:15:20.000Z</code>. </li> <li>
     *         <p><code>block-device-mapping.delete-on-termination</code> - A Boolean
     *         that indicates whether the EBS volume is deleted on instance
     *         termination. </li> <li>
     *         <p><code>block-device-mapping.device-name</code> - The device name for
     *         the EBS volume (for example, <code>/dev/sdh</code> or
     *         <code>xvdh</code>). </li> <li>
     *         <p><code>block-device-mapping.status</code> - The status for the EBS
     *         volume (<code>attaching</code> | <code>attached</code> |
     *         <code>detaching</code> | <code>detached</code>). </li> <li>
     *         <p><code>block-device-mapping.volume-id</code> - The volume ID of the
     *         EBS volume. </li> <li> <p><code>client-token</code> - The idempotency
     *         token you provided when you launched the instance. </li> <li>
     *         <p><code>dns-name</code> - The public DNS name of the instance. </li>
     *         <li> <p><code>group-id</code> - The ID of the security group for the
     *         instance. EC2-Classic only. </li> <li> <p><code>group-name</code> -
     *         The name of the security group for the instance. EC2-Classic only.
     *         </li> <li> <p><code>host-Id</code> - The ID of the Dedicated host on
     *         which the instance is running, if applicable. </li> <li>
     *         <p><code>hypervisor</code> - The hypervisor type of the instance
     *         (<code>ovm</code> | <code>xen</code>). </li> <li>
     *         <p><code>iam-instance-profile.arn</code> - The instance profile
     *         associated with the instance. Specified as an ARN. </li> <li>
     *         <p><code>image-id</code> - The ID of the image used to launch the
     *         instance. </li> <li> <p><code>instance-id</code> - The ID of the
     *         instance. </li> <li> <p><code>instance-lifecycle</code> - Indicates
     *         whether this is a Spot Instance or a Scheduled Instance
     *         (<code>spot</code> | <code>scheduled</code>). </li> <li>
     *         <p><code>instance-state-code</code> - The state of the instance, as a
     *         16-bit unsigned integer. The high byte is an opaque internal value and
     *         should be ignored. The low byte is set based on the state represented.
     *         The valid values are: 0 (pending), 16 (running), 32 (shutting-down),
     *         48 (terminated), 64 (stopping), and 80 (stopped). </li> <li>
     *         <p><code>instance-state-name</code> - The state of the instance
     *         (<code>pending</code> | <code>running</code> |
     *         <code>shutting-down</code> | <code>terminated</code> |
     *         <code>stopping</code> | <code>stopped</code>). </li> <li>
     *         <p><code>instance-type</code> - The type of instance (for example,
     *         <code>t2.micro</code>). </li> <li> <p><code>instance.group-id</code> -
     *         The ID of the security group for the instance. </li> <li>
     *         <p><code>instance.group-name</code> - The name of the security group
     *         for the instance. </li> <li> <p><code>ip-address</code> - The public
     *         IP address of the instance. </li> <li> <p><code>kernel-id</code> - The
     *         kernel ID. </li> <li> <p><code>key-name</code> - The name of the key
     *         pair used when the instance was launched. </li> <li>
     *         <p><code>launch-index</code> - When launching multiple instances, this
     *         is the index for the instance in the launch group (for example, 0, 1,
     *         2, and so on). </li> <li> <p><code>launch-time</code> - The time when
     *         the instance was launched. </li> <li> <p><code>monitoring-state</code>
     *         - Indicates whether monitoring is enabled for the instance
     *         (<code>disabled</code> | <code>enabled</code>). </li> <li>
     *         <p><code>owner-id</code> - The AWS account ID of the instance owner.
     *         </li> <li> <p><code>placement-group-name</code> - The name of the
     *         placement group for the instance. </li> <li> <p><code>platform</code>
     *         - The platform. Use <code>windows</code> if you have Windows
     *         instances; otherwise, leave blank. </li> <li>
     *         <p><code>private-dns-name</code> - The private DNS name of the
     *         instance. </li> <li> <p><code>private-ip-address</code> - The private
     *         IP address of the instance. </li> <li> <p><code>product-code</code> -
     *         The product code associated with the AMI used to launch the instance.
     *         </li> <li> <p><code>product-code.type</code> - The type of product
     *         code (<code>devpay</code> | <code>marketplace</code>). </li> <li>
     *         <p><code>ramdisk-id</code> - The RAM disk ID. </li> <li>
     *         <p><code>reason</code> - The reason for the current state of the
     *         instance (for example, shows "User Initiated [date]" when you stop or
     *         terminate the instance). Similar to the state-reason-code filter.
     *         </li> <li> <p><code>requester-id</code> - The ID of the entity that
     *         launched the instance on your behalf (for example, AWS Management
     *         Console, Auto Scaling, and so on). </li> <li>
     *         <p><code>reservation-id</code> - The ID of the instance's reservation.
     *         A reservation ID is created any time you launch an instance. A
     *         reservation ID has a one-to-one relationship with an instance launch
     *         request, but can be associated with more than one instance if you
     *         launch multiple instances using the same launch request. For example,
     *         if you launch one instance, you'll get one reservation ID. If you
     *         launch ten instances using the same launch request, you'll also get
     *         one reservation ID. </li> <li> <p><code>root-device-name</code> - The
     *         name of the root device for the instance (for example,
     *         <code>/dev/sda1</code> or <code>/dev/xvda</code>). </li> <li>
     *         <p><code>root-device-type</code> - The type of root device that the
     *         instance uses (<code>ebs</code> | <code>instance-store</code>). </li>
     *         <li> <p><code>source-dest-check</code> - Indicates whether the
     *         instance performs source/destination checking. A value of
     *         <code>true</code> means that checking is enabled, and
     *         <code>false</code> means checking is disabled. The value must be
     *         <code>false</code> for the instance to perform network address
     *         translation (NAT) in your VPC. </li> <li>
     *         <p><code>spot-instance-request-id</code> - The ID of the Spot instance
     *         request. </li> <li> <p><code>state-reason-code</code> - The reason
     *         code for the state change. </li> <li>
     *         <p><code>state-reason-message</code> - A message that describes the
     *         state change. </li> <li> <p><code>subnet-id</code> - The ID of the
     *         subnet for the instance. </li> <li>
     *         <p><code>tag</code>:<i>key</i>=<i>value</i> - The key/value
     *         combination of a tag assigned to the resource, where
     *         <code>tag</code>:<i>key</i> is the tag's key. </li> <li>
     *         <p><code>tag-key</code> - The key of a tag assigned to the resource.
     *         This filter is independent of the <code>tag-value</code> filter. For
     *         example, if you use both the filter "tag-key=Purpose" and the filter
     *         "tag-value=X", you get any resources assigned both the tag key Purpose
     *         (regardless of what the tag's value is), and the tag value X
     *         (regardless of what the tag's key is). If you want to list only
     *         resources where Purpose is X, see the
     *         <code>tag</code>:<i>key</i>=<i>value</i> filter. </li> <li>
     *         <p><code>tag-value</code> - The value of a tag assigned to the
     *         resource. This filter is independent of the <code>tag-key</code>
     *         filter. </li> <li> <p><code>tenancy</code> - The tenancy of an
     *         instance (<code>dedicated</code> | <code>default</code> |
     *         <code>host</code>). </li> <li> <p><code>virtualization-type</code> -
     *         The virtualization type of the instance (<code>paravirtual</code> |
     *         <code>hvm</code>). </li> <li> <p><code>vpc-id</code> - The ID of the
     *         VPC that the instance is running in. </li> <li>
     *         <p><code>network-interface.description</code> - The description of the
     *         network interface. </li> <li>
     *         <p><code>network-interface.subnet-id</code> - The ID of the subnet for
     *         the network interface. </li> <li>
     *         <p><code>network-interface.vpc-id</code> - The ID of the VPC for the
     *         network interface. </li> <li>
     *         <p><code>network-interface.network-interface-id</code> - The ID of the
     *         network interface. </li> <li>
     *         <p><code>network-interface.owner-id</code> - The ID of the owner of
     *         the network interface. </li> <li>
     *         <p><code>network-interface.availability-zone</code> - The Availability
     *         Zone for the network interface. </li> <li>
     *         <p><code>network-interface.requester-id</code> - The requester ID for
     *         the network interface. </li> <li>
     *         <p><code>network-interface.requester-managed</code> - Indicates
     *         whether the network interface is being managed by AWS. </li> <li>
     *         <p><code>network-interface.status</code> - The status of the network
     *         interface (<code>available</code>) | <code>in-use</code>). </li> <li>
     *         <p><code>network-interface.mac-address</code> - The MAC address of the
     *         network interface. </li> <li>
     *         <p><code>network-interface.private-dns-name</code> - The private DNS
     *         name of the network interface. </li> <li>
     *         <p><code>network-interface.source-dest-check</code> - Whether the
     *         network interface performs source/destination checking. A value of
     *         <code>true</code> means checking is enabled, and <code>false</code>
     *         means checking is disabled. The value must be <code>false</code> for
     *         the network interface to perform network address translation (NAT) in
     *         your VPC. </li> <li> <p><code>network-interface.group-id</code> - The
     *         ID of a security group associated with the network interface. </li>
     *         <li> <p><code>network-interface.group-name</code> - The name of a
     *         security group associated with the network interface. </li> <li>
     *         <p><code>network-interface.attachment.attachment-id</code> - The ID of
     *         the interface attachment. </li> <li>
     *         <p><code>network-interface.attachment.instance-id</code> - The ID of
     *         the instance to which the network interface is attached. </li> <li>
     *         <p><code>network-interface.attachment.instance-owner-id</code> - The
     *         owner ID of the instance to which the network interface is attached.
     *         </li> <li>
     *         <p><code>network-interface.addresses.private-ip-address</code> - The
     *         private IP address associated with the network interface. </li> <li>
     *         <p><code>network-interface.attachment.device-index</code> - The device
     *         index to which the network interface is attached. </li> <li>
     *         <p><code>network-interface.attachment.status</code> - The status of
     *         the attachment (<code>attaching</code> | <code>attached</code> |
     *         <code>detaching</code> | <code>detached</code>). </li> <li>
     *         <p><code>network-interface.attachment.attach-time</code> - The time
     *         that the network interface was attached to an instance. </li> <li>
     *         <p><code>network-interface.attachment.delete-on-termination</code> -
     *         Specifies whether the attachment is deleted when an instance is
     *         terminated. </li> <li>
     *         <p><code>network-interface.addresses.primary</code> - Specifies
     *         whether the IP address of the network interface is the primary private
     *         IP address. </li> <li>
     *         <p><code>network-interface.addresses.association.public-ip</code> -
     *         The ID of the association of an Elastic IP address with a network
     *         interface. </li> <li>
     *         <p><code>network-interface.addresses.association.ip-owner-id</code> -
     *         The owner ID of the private IP address associated with the network
     *         interface. </li> <li> <p><code>association.public-ip</code> - The
     *         address of the Elastic IP address bound to the network interface.
     *         </li> <li> <p><code>association.ip-owner-id</code> - The owner of the
     *         Elastic IP address associated with the network interface. </li> <li>
     *         <p><code>association.allocation-id</code> - The allocation ID returned
     *         when you allocated the Elastic IP address for your network interface.
     *         </li> <li> <p><code>association.association-id</code> - The
     *         association ID returned when the network interface was associated with
     *         an IP address. </li> </ul>
     */
    public java.util.List<Filter> getFilters() {
        if (filters == null) {
              filters = new com.amazonaws.internal.ListWithAutoConstructFlag<Filter>();
              filters.setAutoConstruct(true);
        }
        return filters;
    }
    
    /**
     * One or more filters. <ul> <li> <p><code>affinity</code> - The affinity
     * setting for an instance running on a Dedicated host
     * (<code>default</code> | <code>host</code>). </li> <li>
     * <p><code>architecture</code> - The instance architecture
     * (<code>i386</code> | <code>x86_64</code>). </li> <li>
     * <p><code>availability-zone</code> - The Availability Zone of the
     * instance. </li> <li> <p><code>block-device-mapping.attach-time</code>
     * - The attach time for an EBS volume mapped to the instance, for
     * example, <code>2010-09-15T17:15:20.000Z</code>. </li> <li>
     * <p><code>block-device-mapping.delete-on-termination</code> - A Boolean
     * that indicates whether the EBS volume is deleted on instance
     * termination. </li> <li>
     * <p><code>block-device-mapping.device-name</code> - The device name for
     * the EBS volume (for example, <code>/dev/sdh</code> or
     * <code>xvdh</code>). </li> <li>
     * <p><code>block-device-mapping.status</code> - The status for the EBS
     * volume (<code>attaching</code> | <code>attached</code> |
     * <code>detaching</code> | <code>detached</code>). </li> <li>
     * <p><code>block-device-mapping.volume-id</code> - The volume ID of the
     * EBS volume. </li> <li> <p><code>client-token</code> - The idempotency
     * token you provided when you launched the instance. </li> <li>
     * <p><code>dns-name</code> - The public DNS name of the instance. </li>
     * <li> <p><code>group-id</code> - The ID of the security group for the
     * instance. EC2-Classic only. </li> <li> <p><code>group-name</code> -
     * The name of the security group for the instance. EC2-Classic only.
     * </li> <li> <p><code>host-Id</code> - The ID of the Dedicated host on
     * which the instance is running, if applicable. </li> <li>
     * <p><code>hypervisor</code> - The hypervisor type of the instance
     * (<code>ovm</code> | <code>xen</code>). </li> <li>
     * <p><code>iam-instance-profile.arn</code> - The instance profile
     * associated with the instance. Specified as an ARN. </li> <li>
     * <p><code>image-id</code> - The ID of the image used to launch the
     * instance. </li> <li> <p><code>instance-id</code> - The ID of the
     * instance. </li> <li> <p><code>instance-lifecycle</code> - Indicates
     * whether this is a Spot Instance or a Scheduled Instance
     * (<code>spot</code> | <code>scheduled</code>). </li> <li>
     * <p><code>instance-state-code</code> - The state of the instance, as a
     * 16-bit unsigned integer. The high byte is an opaque internal value and
     * should be ignored. The low byte is set based on the state represented.
     * The valid values are: 0 (pending), 16 (running), 32 (shutting-down),
     * 48 (terminated), 64 (stopping), and 80 (stopped). </li> <li>
     * <p><code>instance-state-name</code> - The state of the instance
     * (<code>pending</code> | <code>running</code> |
     * <code>shutting-down</code> | <code>terminated</code> |
     * <code>stopping</code> | <code>stopped</code>). </li> <li>
     * <p><code>instance-type</code> - The type of instance (for example,
     * <code>t2.micro</code>). </li> <li> <p><code>instance.group-id</code> -
     * The ID of the security group for the instance. </li> <li>
     * <p><code>instance.group-name</code> - The name of the security group
     * for the instance. </li> <li> <p><code>ip-address</code> - The public
     * IP address of the instance. </li> <li> <p><code>kernel-id</code> - The
     * kernel ID. </li> <li> <p><code>key-name</code> - The name of the key
     * pair used when the instance was launched. </li> <li>
     * <p><code>launch-index</code> - When launching multiple instances, this
     * is the index for the instance in the launch group (for example, 0, 1,
     * 2, and so on). </li> <li> <p><code>launch-time</code> - The time when
     * the instance was launched. </li> <li> <p><code>monitoring-state</code>
     * - Indicates whether monitoring is enabled for the instance
     * (<code>disabled</code> | <code>enabled</code>). </li> <li>
     * <p><code>owner-id</code> - The AWS account ID of the instance owner.
     * </li> <li> <p><code>placement-group-name</code> - The name of the
     * placement group for the instance. </li> <li> <p><code>platform</code>
     * - The platform. Use <code>windows</code> if you have Windows
     * instances; otherwise, leave blank. </li> <li>
     * <p><code>private-dns-name</code> - The private DNS name of the
     * instance. </li> <li> <p><code>private-ip-address</code> - The private
     * IP address of the instance. </li> <li> <p><code>product-code</code> -
     * The product code associated with the AMI used to launch the instance.
     * </li> <li> <p><code>product-code.type</code> - The type of product
     * code (<code>devpay</code> | <code>marketplace</code>). </li> <li>
     * <p><code>ramdisk-id</code> - The RAM disk ID. </li> <li>
     * <p><code>reason</code> - The reason for the current state of the
     * instance (for example, shows "User Initiated [date]" when you stop or
     * terminate the instance). Similar to the state-reason-code filter.
     * </li> <li> <p><code>requester-id</code> - The ID of the entity that
     * launched the instance on your behalf (for example, AWS Management
     * Console, Auto Scaling, and so on). </li> <li>
     * <p><code>reservation-id</code> - The ID of the instance's reservation.
     * A reservation ID is created any time you launch an instance. A
     * reservation ID has a one-to-one relationship with an instance launch
     * request, but can be associated with more than one instance if you
     * launch multiple instances using the same launch request. For example,
     * if you launch one instance, you'll get one reservation ID. If you
     * launch ten instances using the same launch request, you'll also get
     * one reservation ID. </li> <li> <p><code>root-device-name</code> - The
     * name of the root device for the instance (for example,
     * <code>/dev/sda1</code> or <code>/dev/xvda</code>). </li> <li>
     * <p><code>root-device-type</code> - The type of root device that the
     * instance uses (<code>ebs</code> | <code>instance-store</code>). </li>
     * <li> <p><code>source-dest-check</code> - Indicates whether the
     * instance performs source/destination checking. A value of
     * <code>true</code> means that checking is enabled, and
     * <code>false</code> means checking is disabled. The value must be
     * <code>false</code> for the instance to perform network address
     * translation (NAT) in your VPC. </li> <li>
     * <p><code>spot-instance-request-id</code> - The ID of the Spot instance
     * request. </li> <li> <p><code>state-reason-code</code> - The reason
     * code for the state change. </li> <li>
     * <p><code>state-reason-message</code> - A message that describes the
     * state change. </li> <li> <p><code>subnet-id</code> - The ID of the
     * subnet for the instance. </li> <li>
     * <p><code>tag</code>:<i>key</i>=<i>value</i> - The key/value
     * combination of a tag assigned to the resource, where
     * <code>tag</code>:<i>key</i> is the tag's key. </li> <li>
     * <p><code>tag-key</code> - The key of a tag assigned to the resource.
     * This filter is independent of the <code>tag-value</code> filter. For
     * example, if you use both the filter "tag-key=Purpose" and the filter
     * "tag-value=X", you get any resources assigned both the tag key Purpose
     * (regardless of what the tag's value is), and the tag value X
     * (regardless of what the tag's key is). If you want to list only
     * resources where Purpose is X, see the
     * <code>tag</code>:<i>key</i>=<i>value</i> filter. </li> <li>
     * <p><code>tag-value</code> - The value of a tag assigned to the
     * resource. This filter is independent of the <code>tag-key</code>
     * filter. </li> <li> <p><code>tenancy</code> - The tenancy of an
     * instance (<code>dedicated</code> | <code>default</code> |
     * <code>host</code>). </li> <li> <p><code>virtualization-type</code> -
     * The virtualization type of the instance (<code>paravirtual</code> |
     * <code>hvm</code>). </li> <li> <p><code>vpc-id</code> - The ID of the
     * VPC that the instance is running in. </li> <li>
     * <p><code>network-interface.description</code> - The description of the
     * network interface. </li> <li>
     * <p><code>network-interface.subnet-id</code> - The ID of the subnet for
     * the network interface. </li> <li>
     * <p><code>network-interface.vpc-id</code> - The ID of the VPC for the
     * network interface. </li> <li>
     * <p><code>network-interface.network-interface-id</code> - The ID of the
     * network interface. </li> <li>
     * <p><code>network-interface.owner-id</code> - The ID of the owner of
     * the network interface. </li> <li>
     * <p><code>network-interface.availability-zone</code> - The Availability
     * Zone for the network interface. </li> <li>
     * <p><code>network-interface.requester-id</code> - The requester ID for
     * the network interface. </li> <li>
     * <p><code>network-interface.requester-managed</code> - Indicates
     * whether the network interface is being managed by AWS. </li> <li>
     * <p><code>network-interface.status</code> - The status of the network
     * interface (<code>available</code>) | <code>in-use</code>). </li> <li>
     * <p><code>network-interface.mac-address</code> - The MAC address of the
     * network interface. </li> <li>
     * <p><code>network-interface.private-dns-name</code> - The private DNS
     * name of the network interface. </li> <li>
     * <p><code>network-interface.source-dest-check</code> - Whether the
     * network interface performs source/destination checking. A value of
     * <code>true</code> means checking is enabled, and <code>false</code>
     * means checking is disabled. The value must be <code>false</code> for
     * the network interface to perform network address translation (NAT) in
     * your VPC. </li> <li> <p><code>network-interface.group-id</code> - The
     * ID of a security group associated with the network interface. </li>
     * <li> <p><code>network-interface.group-name</code> - The name of a
     * security group associated with the network interface. </li> <li>
     * <p><code>network-interface.attachment.attachment-id</code> - The ID of
     * the interface attachment. </li> <li>
     * <p><code>network-interface.attachment.instance-id</code> - The ID of
     * the instance to which the network interface is attached. </li> <li>
     * <p><code>network-interface.attachment.instance-owner-id</code> - The
     * owner ID of the instance to which the network interface is attached.
     * </li> <li>
     * <p><code>network-interface.addresses.private-ip-address</code> - The
     * private IP address associated with the network interface. </li> <li>
     * <p><code>network-interface.attachment.device-index</code> - The device
     * index to which the network interface is attached. </li> <li>
     * <p><code>network-interface.attachment.status</code> - The status of
     * the attachment (<code>attaching</code> | <code>attached</code> |
     * <code>detaching</code> | <code>detached</code>). </li> <li>
     * <p><code>network-interface.attachment.attach-time</code> - The time
     * that the network interface was attached to an instance. </li> <li>
     * <p><code>network-interface.attachment.delete-on-termination</code> -
     * Specifies whether the attachment is deleted when an instance is
     * terminated. </li> <li>
     * <p><code>network-interface.addresses.primary</code> - Specifies
     * whether the IP address of the network interface is the primary private
     * IP address. </li> <li>
     * <p><code>network-interface.addresses.association.public-ip</code> -
     * The ID of the association of an Elastic IP address with a network
     * interface. </li> <li>
     * <p><code>network-interface.addresses.association.ip-owner-id</code> -
     * The owner ID of the private IP address associated with the network
     * interface. </li> <li> <p><code>association.public-ip</code> - The
     * address of the Elastic IP address bound to the network interface.
     * </li> <li> <p><code>association.ip-owner-id</code> - The owner of the
     * Elastic IP address associated with the network interface. </li> <li>
     * <p><code>association.allocation-id</code> - The allocation ID returned
     * when you allocated the Elastic IP address for your network interface.
     * </li> <li> <p><code>association.association-id</code> - The
     * association ID returned when the network interface was associated with
     * an IP address. </li> </ul>
     *
     * @param filters One or more filters. <ul> <li> <p><code>affinity</code> - The affinity
     *         setting for an instance running on a Dedicated host
     *         (<code>default</code> | <code>host</code>). </li> <li>
     *         <p><code>architecture</code> - The instance architecture
     *         (<code>i386</code> | <code>x86_64</code>). </li> <li>
     *         <p><code>availability-zone</code> - The Availability Zone of the
     *         instance. </li> <li> <p><code>block-device-mapping.attach-time</code>
     *         - The attach time for an EBS volume mapped to the instance, for
     *         example, <code>2010-09-15T17:15:20.000Z</code>. </li> <li>
     *         <p><code>block-device-mapping.delete-on-termination</code> - A Boolean
     *         that indicates whether the EBS volume is deleted on instance
     *         termination. </li> <li>
     *         <p><code>block-device-mapping.device-name</code> - The device name for
     *         the EBS volume (for example, <code>/dev/sdh</code> or
     *         <code>xvdh</code>). </li> <li>
     *         <p><code>block-device-mapping.status</code> - The status for the EBS
     *         volume (<code>attaching</code> | <code>attached</code> |
     *         <code>detaching</code> | <code>detached</code>). </li> <li>
     *         <p><code>block-device-mapping.volume-id</code> - The volume ID of the
     *         EBS volume. </li> <li> <p><code>client-token</code> - The idempotency
     *         token you provided when you launched the instance. </li> <li>
     *         <p><code>dns-name</code> - The public DNS name of the instance. </li>
     *         <li> <p><code>group-id</code> - The ID of the security group for the
     *         instance. EC2-Classic only. </li> <li> <p><code>group-name</code> -
     *         The name of the security group for the instance. EC2-Classic only.
     *         </li> <li> <p><code>host-Id</code> - The ID of the Dedicated host on
     *         which the instance is running, if applicable. </li> <li>
     *         <p><code>hypervisor</code> - The hypervisor type of the instance
     *         (<code>ovm</code> | <code>xen</code>). </li> <li>
     *         <p><code>iam-instance-profile.arn</code> - The instance profile
     *         associated with the instance. Specified as an ARN. </li> <li>
     *         <p><code>image-id</code> - The ID of the image used to launch the
     *         instance. </li> <li> <p><code>instance-id</code> - The ID of the
     *         instance. </li> <li> <p><code>instance-lifecycle</code> - Indicates
     *         whether this is a Spot Instance or a Scheduled Instance
     *         (<code>spot</code> | <code>scheduled</code>). </li> <li>
     *         <p><code>instance-state-code</code> - The state of the instance, as a
     *         16-bit unsigned integer. The high byte is an opaque internal value and
     *         should be ignored. The low byte is set based on the state represented.
     *         The valid values are: 0 (pending), 16 (running), 32 (shutting-down),
     *         48 (terminated), 64 (stopping), and 80 (stopped). </li> <li>
     *         <p><code>instance-state-name</code> - The state of the instance
     *         (<code>pending</code> | <code>running</code> |
     *         <code>shutting-down</code> | <code>terminated</code> |
     *         <code>stopping</code> | <code>stopped</code>). </li> <li>
     *         <p><code>instance-type</code> - The type of instance (for example,
     *         <code>t2.micro</code>). </li> <li> <p><code>instance.group-id</code> -
     *         The ID of the security group for the instance. </li> <li>
     *         <p><code>instance.group-name</code> - The name of the security group
     *         for the instance. </li> <li> <p><code>ip-address</code> - The public
     *         IP address of the instance. </li> <li> <p><code>kernel-id</code> - The
     *         kernel ID. </li> <li> <p><code>key-name</code> - The name of the key
     *         pair used when the instance was launched. </li> <li>
     *         <p><code>launch-index</code> - When launching multiple instances, this
     *         is the index for the instance in the launch group (for example, 0, 1,
     *         2, and so on). </li> <li> <p><code>launch-time</code> - The time when
     *         the instance was launched. </li> <li> <p><code>monitoring-state</code>
     *         - Indicates whether monitoring is enabled for the instance
     *         (<code>disabled</code> | <code>enabled</code>). </li> <li>
     *         <p><code>owner-id</code> - The AWS account ID of the instance owner.
     *         </li> <li> <p><code>placement-group-name</code> - The name of the
     *         placement group for the instance. </li> <li> <p><code>platform</code>
     *         - The platform. Use <code>windows</code> if you have Windows
     *         instances; otherwise, leave blank. </li> <li>
     *         <p><code>private-dns-name</code> - The private DNS name of the
     *         instance. </li> <li> <p><code>private-ip-address</code> - The private
     *         IP address of the instance. </li> <li> <p><code>product-code</code> -
     *         The product code associated with the AMI used to launch the instance.
     *         </li> <li> <p><code>product-code.type</code> - The type of product
     *         code (<code>devpay</code> | <code>marketplace</code>). </li> <li>
     *         <p><code>ramdisk-id</code> - The RAM disk ID. </li> <li>
     *         <p><code>reason</code> - The reason for the current state of the
     *         instance (for example, shows "User Initiated [date]" when you stop or
     *         terminate the instance). Similar to the state-reason-code filter.
     *         </li> <li> <p><code>requester-id</code> - The ID of the entity that
     *         launched the instance on your behalf (for example, AWS Management
     *         Console, Auto Scaling, and so on). </li> <li>
     *         <p><code>reservation-id</code> - The ID of the instance's reservation.
     *         A reservation ID is created any time you launch an instance. A
     *         reservation ID has a one-to-one relationship with an instance launch
     *         request, but can be associated with more than one instance if you
     *         launch multiple instances using the same launch request. For example,
     *         if you launch one instance, you'll get one reservation ID. If you
     *         launch ten instances using the same launch request, you'll also get
     *         one reservation ID. </li> <li> <p><code>root-device-name</code> - The
     *         name of the root device for the instance (for example,
     *         <code>/dev/sda1</code> or <code>/dev/xvda</code>). </li> <li>
     *         <p><code>root-device-type</code> - The type of root device that the
     *         instance uses (<code>ebs</code> | <code>instance-store</code>). </li>
     *         <li> <p><code>source-dest-check</code> - Indicates whether the
     *         instance performs source/destination checking. A value of
     *         <code>true</code> means that checking is enabled, and
     *         <code>false</code> means checking is disabled. The value must be
     *         <code>false</code> for the instance to perform network address
     *         translation (NAT) in your VPC. </li> <li>
     *         <p><code>spot-instance-request-id</code> - The ID of the Spot instance
     *         request. </li> <li> <p><code>state-reason-code</code> - The reason
     *         code for the state change. </li> <li>
     *         <p><code>state-reason-message</code> - A message that describes the
     *         state change. </li> <li> <p><code>subnet-id</code> - The ID of the
     *         subnet for the instance. </li> <li>
     *         <p><code>tag</code>:<i>key</i>=<i>value</i> - The key/value
     *         combination of a tag assigned to the resource, where
     *         <code>tag</code>:<i>key</i> is the tag's key. </li> <li>
     *         <p><code>tag-key</code> - The key of a tag assigned to the resource.
     *         This filter is independent of the <code>tag-value</code> filter. For
     *         example, if you use both the filter "tag-key=Purpose" and the filter
     *         "tag-value=X", you get any resources assigned both the tag key Purpose
     *         (regardless of what the tag's value is), and the tag value X
     *         (regardless of what the tag's key is). If you want to list only
     *         resources where Purpose is X, see the
     *         <code>tag</code>:<i>key</i>=<i>value</i> filter. </li> <li>
     *         <p><code>tag-value</code> - The value of a tag assigned to the
     *         resource. This filter is independent of the <code>tag-key</code>
     *         filter. </li> <li> <p><code>tenancy</code> - The tenancy of an
     *         instance (<code>dedicated</code> | <code>default</code> |
     *         <code>host</code>). </li> <li> <p><code>virtualization-type</code> -
     *         The virtualization type of the instance (<code>paravirtual</code> |
     *         <code>hvm</code>). </li> <li> <p><code>vpc-id</code> - The ID of the
     *         VPC that the instance is running in. </li> <li>
     *         <p><code>network-interface.description</code> - The description of the
     *         network interface. </li> <li>
     *         <p><code>network-interface.subnet-id</code> - The ID of the subnet for
     *         the network interface. </li> <li>
     *         <p><code>network-interface.vpc-id</code> - The ID of the VPC for the
     *         network interface. </li> <li>
     *         <p><code>network-interface.network-interface-id</code> - The ID of the
     *         network interface. </li> <li>
     *         <p><code>network-interface.owner-id</code> - The ID of the owner of
     *         the network interface. </li> <li>
     *         <p><code>network-interface.availability-zone</code> - The Availability
     *         Zone for the network interface. </li> <li>
     *         <p><code>network-interface.requester-id</code> - The requester ID for
     *         the network interface. </li> <li>
     *         <p><code>network-interface.requester-managed</code> - Indicates
     *         whether the network interface is being managed by AWS. </li> <li>
     *         <p><code>network-interface.status</code> - The status of the network
     *         interface (<code>available</code>) | <code>in-use</code>). </li> <li>
     *         <p><code>network-interface.mac-address</code> - The MAC address of the
     *         network interface. </li> <li>
     *         <p><code>network-interface.private-dns-name</code> - The private DNS
     *         name of the network interface. </li> <li>
     *         <p><code>network-interface.source-dest-check</code> - Whether the
     *         network interface performs source/destination checking. A value of
     *         <code>true</code> means checking is enabled, and <code>false</code>
     *         means checking is disabled. The value must be <code>false</code> for
     *         the network interface to perform network address translation (NAT) in
     *         your VPC. </li> <li> <p><code>network-interface.group-id</code> - The
     *         ID of a security group associated with the network interface. </li>
     *         <li> <p><code>network-interface.group-name</code> - The name of a
     *         security group associated with the network interface. </li> <li>
     *         <p><code>network-interface.attachment.attachment-id</code> - The ID of
     *         the interface attachment. </li> <li>
     *         <p><code>network-interface.attachment.instance-id</code> - The ID of
     *         the instance to which the network interface is attached. </li> <li>
     *         <p><code>network-interface.attachment.instance-owner-id</code> - The
     *         owner ID of the instance to which the network interface is attached.
     *         </li> <li>
     *         <p><code>network-interface.addresses.private-ip-address</code> - The
     *         private IP address associated with the network interface. </li> <li>
     *         <p><code>network-interface.attachment.device-index</code> - The device
     *         index to which the network interface is attached. </li> <li>
     *         <p><code>network-interface.attachment.status</code> - The status of
     *         the attachment (<code>attaching</code> | <code>attached</code> |
     *         <code>detaching</code> | <code>detached</code>). </li> <li>
     *         <p><code>network-interface.attachment.attach-time</code> - The time
     *         that the network interface was attached to an instance. </li> <li>
     *         <p><code>network-interface.attachment.delete-on-termination</code> -
     *         Specifies whether the attachment is deleted when an instance is
     *         terminated. </li> <li>
     *         <p><code>network-interface.addresses.primary</code> - Specifies
     *         whether the IP address of the network interface is the primary private
     *         IP address. </li> <li>
     *         <p><code>network-interface.addresses.association.public-ip</code> -
     *         The ID of the association of an Elastic IP address with a network
     *         interface. </li> <li>
     *         <p><code>network-interface.addresses.association.ip-owner-id</code> -
     *         The owner ID of the private IP address associated with the network
     *         interface. </li> <li> <p><code>association.public-ip</code> - The
     *         address of the Elastic IP address bound to the network interface.
     *         </li> <li> <p><code>association.ip-owner-id</code> - The owner of the
     *         Elastic IP address associated with the network interface. </li> <li>
     *         <p><code>association.allocation-id</code> - The allocation ID returned
     *         when you allocated the Elastic IP address for your network interface.
     *         </li> <li> <p><code>association.association-id</code> - The
     *         association ID returned when the network interface was associated with
     *         an IP address. </li> </ul>
     */
    public void setFilters(java.util.Collection<Filter> filters) {
        if (filters == null) {
            this.filters = null;
            return;
        }
        com.amazonaws.internal.ListWithAutoConstructFlag<Filter> filtersCopy = new com.amazonaws.internal.ListWithAutoConstructFlag<Filter>(filters.size());
        filtersCopy.addAll(filters);
        this.filters = filtersCopy;
    }
    
    /**
     * One or more filters. <ul> <li> <p><code>affinity</code> - The affinity
     * setting for an instance running on a Dedicated host
     * (<code>default</code> | <code>host</code>). </li> <li>
     * <p><code>architecture</code> - The instance architecture
     * (<code>i386</code> | <code>x86_64</code>). </li> <li>
     * <p><code>availability-zone</code> - The Availability Zone of the
     * instance. </li> <li> <p><code>block-device-mapping.attach-time</code>
     * - The attach time for an EBS volume mapped to the instance, for
     * example, <code>2010-09-15T17:15:20.000Z</code>. </li> <li>
     * <p><code>block-device-mapping.delete-on-termination</code> - A Boolean
     * that indicates whether the EBS volume is deleted on instance
     * termination. </li> <li>
     * <p><code>block-device-mapping.device-name</code> - The device name for
     * the EBS volume (for example, <code>/dev/sdh</code> or
     * <code>xvdh</code>). </li> <li>
     * <p><code>block-device-mapping.status</code> - The status for the EBS
     * volume (<code>attaching</code> | <code>attached</code> |
     * <code>detaching</code> | <code>detached</code>). </li> <li>
     * <p><code>block-device-mapping.volume-id</code> - The volume ID of the
     * EBS volume. </li> <li> <p><code>client-token</code> - The idempotency
     * token you provided when you launched the instance. </li> <li>
     * <p><code>dns-name</code> - The public DNS name of the instance. </li>
     * <li> <p><code>group-id</code> - The ID of the security group for the
     * instance. EC2-Classic only. </li> <li> <p><code>group-name</code> -
     * The name of the security group for the instance. EC2-Classic only.
     * </li> <li> <p><code>host-Id</code> - The ID of the Dedicated host on
     * which the instance is running, if applicable. </li> <li>
     * <p><code>hypervisor</code> - The hypervisor type of the instance
     * (<code>ovm</code> | <code>xen</code>). </li> <li>
     * <p><code>iam-instance-profile.arn</code> - The instance profile
     * associated with the instance. Specified as an ARN. </li> <li>
     * <p><code>image-id</code> - The ID of the image used to launch the
     * instance. </li> <li> <p><code>instance-id</code> - The ID of the
     * instance. </li> <li> <p><code>instance-lifecycle</code> - Indicates
     * whether this is a Spot Instance or a Scheduled Instance
     * (<code>spot</code> | <code>scheduled</code>). </li> <li>
     * <p><code>instance-state-code</code> - The state of the instance, as a
     * 16-bit unsigned integer. The high byte is an opaque internal value and
     * should be ignored. The low byte is set based on the state represented.
     * The valid values are: 0 (pending), 16 (running), 32 (shutting-down),
     * 48 (terminated), 64 (stopping), and 80 (stopped). </li> <li>
     * <p><code>instance-state-name</code> - The state of the instance
     * (<code>pending</code> | <code>running</code> |
     * <code>shutting-down</code> | <code>terminated</code> |
     * <code>stopping</code> | <code>stopped</code>). </li> <li>
     * <p><code>instance-type</code> - The type of instance (for example,
     * <code>t2.micro</code>). </li> <li> <p><code>instance.group-id</code> -
     * The ID of the security group for the instance. </li> <li>
     * <p><code>instance.group-name</code> - The name of the security group
     * for the instance. </li> <li> <p><code>ip-address</code> - The public
     * IP address of the instance. </li> <li> <p><code>kernel-id</code> - The
     * kernel ID. </li> <li> <p><code>key-name</code> - The name of the key
     * pair used when the instance was launched. </li> <li>
     * <p><code>launch-index</code> - When launching multiple instances, this
     * is the index for the instance in the launch group (for example, 0, 1,
     * 2, and so on). </li> <li> <p><code>launch-time</code> - The time when
     * the instance was launched. </li> <li> <p><code>monitoring-state</code>
     * - Indicates whether monitoring is enabled for the instance
     * (<code>disabled</code> | <code>enabled</code>). </li> <li>
     * <p><code>owner-id</code> - The AWS account ID of the instance owner.
     * </li> <li> <p><code>placement-group-name</code> - The name of the
     * placement group for the instance. </li> <li> <p><code>platform</code>
     * - The platform. Use <code>windows</code> if you have Windows
     * instances; otherwise, leave blank. </li> <li>
     * <p><code>private-dns-name</code> - The private DNS name of the
     * instance. </li> <li> <p><code>private-ip-address</code> - The private
     * IP address of the instance. </li> <li> <p><code>product-code</code> -
     * The product code associated with the AMI used to launch the instance.
     * </li> <li> <p><code>product-code.type</code> - The type of product
     * code (<code>devpay</code> | <code>marketplace</code>). </li> <li>
     * <p><code>ramdisk-id</code> - The RAM disk ID. </li> <li>
     * <p><code>reason</code> - The reason for the current state of the
     * instance (for example, shows "User Initiated [date]" when you stop or
     * terminate the instance). Similar to the state-reason-code filter.
     * </li> <li> <p><code>requester-id</code> - The ID of the entity that
     * launched the instance on your behalf (for example, AWS Management
     * Console, Auto Scaling, and so on). </li> <li>
     * <p><code>reservation-id</code> - The ID of the instance's reservation.
     * A reservation ID is created any time you launch an instance. A
     * reservation ID has a one-to-one relationship with an instance launch
     * request, but can be associated with more than one instance if you
     * launch multiple instances using the same launch request. For example,
     * if you launch one instance, you'll get one reservation ID. If you
     * launch ten instances using the same launch request, you'll also get
     * one reservation ID. </li> <li> <p><code>root-device-name</code> - The
     * name of the root device for the instance (for example,
     * <code>/dev/sda1</code> or <code>/dev/xvda</code>). </li> <li>
     * <p><code>root-device-type</code> - The type of root device that the
     * instance uses (<code>ebs</code> | <code>instance-store</code>). </li>
     * <li> <p><code>source-dest-check</code> - Indicates whether the
     * instance performs source/destination checking. A value of
     * <code>true</code> means that checking is enabled, and
     * <code>false</code> means checking is disabled. The value must be
     * <code>false</code> for the instance to perform network address
     * translation (NAT) in your VPC. </li> <li>
     * <p><code>spot-instance-request-id</code> - The ID of the Spot instance
     * request. </li> <li> <p><code>state-reason-code</code> - The reason
     * code for the state change. </li> <li>
     * <p><code>state-reason-message</code> - A message that describes the
     * state change. </li> <li> <p><code>subnet-id</code> - The ID of the
     * subnet for the instance. </li> <li>
     * <p><code>tag</code>:<i>key</i>=<i>value</i> - The key/value
     * combination of a tag assigned to the resource, where
     * <code>tag</code>:<i>key</i> is the tag's key. </li> <li>
     * <p><code>tag-key</code> - The key of a tag assigned to the resource.
     * This filter is independent of the <code>tag-value</code> filter. For
     * example, if you use both the filter "tag-key=Purpose" and the filter
     * "tag-value=X", you get any resources assigned both the tag key Purpose
     * (regardless of what the tag's value is), and the tag value X
     * (regardless of what the tag's key is). If you want to list only
     * resources where Purpose is X, see the
     * <code>tag</code>:<i>key</i>=<i>value</i> filter. </li> <li>
     * <p><code>tag-value</code> - The value of a tag assigned to the
     * resource. This filter is independent of the <code>tag-key</code>
     * filter. </li> <li> <p><code>tenancy</code> - The tenancy of an
     * instance (<code>dedicated</code> | <code>default</code> |
     * <code>host</code>). </li> <li> <p><code>virtualization-type</code> -
     * The virtualization type of the instance (<code>paravirtual</code> |
     * <code>hvm</code>). </li> <li> <p><code>vpc-id</code> - The ID of the
     * VPC that the instance is running in. </li> <li>
     * <p><code>network-interface.description</code> - The description of the
     * network interface. </li> <li>
     * <p><code>network-interface.subnet-id</code> - The ID of the subnet for
     * the network interface. </li> <li>
     * <p><code>network-interface.vpc-id</code> - The ID of the VPC for the
     * network interface. </li> <li>
     * <p><code>network-interface.network-interface-id</code> - The ID of the
     * network interface. </li> <li>
     * <p><code>network-interface.owner-id</code> - The ID of the owner of
     * the network interface. </li> <li>
     * <p><code>network-interface.availability-zone</code> - The Availability
     * Zone for the network interface. </li> <li>
     * <p><code>network-interface.requester-id</code> - The requester ID for
     * the network interface. </li> <li>
     * <p><code>network-interface.requester-managed</code> - Indicates
     * whether the network interface is being managed by AWS. </li> <li>
     * <p><code>network-interface.status</code> - The status of the network
     * interface (<code>available</code>) | <code>in-use</code>). </li> <li>
     * <p><code>network-interface.mac-address</code> - The MAC address of the
     * network interface. </li> <li>
     * <p><code>network-interface.private-dns-name</code> - The private DNS
     * name of the network interface. </li> <li>
     * <p><code>network-interface.source-dest-check</code> - Whether the
     * network interface performs source/destination checking. A value of
     * <code>true</code> means checking is enabled, and <code>false</code>
     * means checking is disabled. The value must be <code>false</code> for
     * the network interface to perform network address translation (NAT) in
     * your VPC. </li> <li> <p><code>network-interface.group-id</code> - The
     * ID of a security group associated with the network interface. </li>
     * <li> <p><code>network-interface.group-name</code> - The name of a
     * security group associated with the network interface. </li> <li>
     * <p><code>network-interface.attachment.attachment-id</code> - The ID of
     * the interface attachment. </li> <li>
     * <p><code>network-interface.attachment.instance-id</code> - The ID of
     * the instance to which the network interface is attached. </li> <li>
     * <p><code>network-interface.attachment.instance-owner-id</code> - The
     * owner ID of the instance to which the network interface is attached.
     * </li> <li>
     * <p><code>network-interface.addresses.private-ip-address</code> - The
     * private IP address associated with the network interface. </li> <li>
     * <p><code>network-interface.attachment.device-index</code> - The device
     * index to which the network interface is attached. </li> <li>
     * <p><code>network-interface.attachment.status</code> - The status of
     * the attachment (<code>attaching</code> | <code>attached</code> |
     * <code>detaching</code> | <code>detached</code>). </li> <li>
     * <p><code>network-interface.attachment.attach-time</code> - The time
     * that the network interface was attached to an instance. </li> <li>
     * <p><code>network-interface.attachment.delete-on-termination</code> -
     * Specifies whether the attachment is deleted when an instance is
     * terminated. </li> <li>
     * <p><code>network-interface.addresses.primary</code> - Specifies
     * whether the IP address of the network interface is the primary private
     * IP address. </li> <li>
     * <p><code>network-interface.addresses.association.public-ip</code> -
     * The ID of the association of an Elastic IP address with a network
     * interface. </li> <li>
     * <p><code>network-interface.addresses.association.ip-owner-id</code> -
     * The owner ID of the private IP address associated with the network
     * interface. </li> <li> <p><code>association.public-ip</code> - The
     * address of the Elastic IP address bound to the network interface.
     * </li> <li> <p><code>association.ip-owner-id</code> - The owner of the
     * Elastic IP address associated with the network interface. </li> <li>
     * <p><code>association.allocation-id</code> - The allocation ID returned
     * when you allocated the Elastic IP address for your network interface.
     * </li> <li> <p><code>association.association-id</code> - The
     * association ID returned when the network interface was associated with
     * an IP address. </li> </ul>
     * <p>
     * Returns a reference to this object so that method calls can be chained together.
     *
     * @param filters One or more filters. <ul> <li> <p><code>affinity</code> - The affinity
     *         setting for an instance running on a Dedicated host
     *         (<code>default</code> | <code>host</code>). </li> <li>
     *         <p><code>architecture</code> - The instance architecture
     *         (<code>i386</code> | <code>x86_64</code>). </li> <li>
     *         <p><code>availability-zone</code> - The Availability Zone of the
     *         instance. </li> <li> <p><code>block-device-mapping.attach-time</code>
     *         - The attach time for an EBS volume mapped to the instance, for
     *         example, <code>2010-09-15T17:15:20.000Z</code>. </li> <li>
     *         <p><code>block-device-mapping.delete-on-termination</code> - A Boolean
     *         that indicates whether the EBS volume is deleted on instance
     *         termination. </li> <li>
     *         <p><code>block-device-mapping.device-name</code> - The device name for
     *         the EBS volume (for example, <code>/dev/sdh</code> or
     *         <code>xvdh</code>). </li> <li>
     *         <p><code>block-device-mapping.status</code> - The status for the EBS
     *         volume (<code>attaching</code> | <code>attached</code> |
     *         <code>detaching</code> | <code>detached</code>). </li> <li>
     *         <p><code>block-device-mapping.volume-id</code> - The volume ID of the
     *         EBS volume. </li> <li> <p><code>client-token</code> - The idempotency
     *         token you provided when you launched the instance. </li> <li>
     *         <p><code>dns-name</code> - The public DNS name of the instance. </li>
     *         <li> <p><code>group-id</code> - The ID of the security group for the
     *         instance. EC2-Classic only. </li> <li> <p><code>group-name</code> -
     *         The name of the security group for the instance. EC2-Classic only.
     *         </li> <li> <p><code>host-Id</code> - The ID of the Dedicated host on
     *         which the instance is running, if applicable. </li> <li>
     *         <p><code>hypervisor</code> - The hypervisor type of the instance
     *         (<code>ovm</code> | <code>xen</code>). </li> <li>
     *         <p><code>iam-instance-profile.arn</code> - The instance profile
     *         associated with the instance. Specified as an ARN. </li> <li>
     *         <p><code>image-id</code> - The ID of the image used to launch the
     *         instance. </li> <li> <p><code>instance-id</code> - The ID of the
     *         instance. </li> <li> <p><code>instance-lifecycle</code> - Indicates
     *         whether this is a Spot Instance or a Scheduled Instance
     *         (<code>spot</code> | <code>scheduled</code>). </li> <li>
     *         <p><code>instance-state-code</code> - The state of the instance, as a
     *         16-bit unsigned integer. The high byte is an opaque internal value and
     *         should be ignored. The low byte is set based on the state represented.
     *         The valid values are: 0 (pending), 16 (running), 32 (shutting-down),
     *         48 (terminated), 64 (stopping), and 80 (stopped). </li> <li>
     *         <p><code>instance-state-name</code> - The state of the instance
     *         (<code>pending</code> | <code>running</code> |
     *         <code>shutting-down</code> | <code>terminated</code> |
     *         <code>stopping</code> | <code>stopped</code>). </li> <li>
     *         <p><code>instance-type</code> - The type of instance (for example,
     *         <code>t2.micro</code>). </li> <li> <p><code>instance.group-id</code> -
     *         The ID of the security group for the instance. </li> <li>
     *         <p><code>instance.group-name</code> - The name of the security group
     *         for the instance. </li> <li> <p><code>ip-address</code> - The public
     *         IP address of the instance. </li> <li> <p><code>kernel-id</code> - The
     *         kernel ID. </li> <li> <p><code>key-name</code> - The name of the key
     *         pair used when the instance was launched. </li> <li>
     *         <p><code>launch-index</code> - When launching multiple instances, this
     *         is the index for the instance in the launch group (for example, 0, 1,
     *         2, and so on). </li> <li> <p><code>launch-time</code> - The time when
     *         the instance was launched. </li> <li> <p><code>monitoring-state</code>
     *         - Indicates whether monitoring is enabled for the instance
     *         (<code>disabled</code> | <code>enabled</code>). </li> <li>
     *         <p><code>owner-id</code> - The AWS account ID of the instance owner.
     *         </li> <li> <p><code>placement-group-name</code> - The name of the
     *         placement group for the instance. </li> <li> <p><code>platform</code>
     *         - The platform. Use <code>windows</code> if you have Windows
     *         instances; otherwise, leave blank. </li> <li>
     *         <p><code>private-dns-name</code> - The private DNS name of the
     *         instance. </li> <li> <p><code>private-ip-address</code> - The private
     *         IP address of the instance. </li> <li> <p><code>product-code</code> -
     *         The product code associated with the AMI used to launch the instance.
     *         </li> <li> <p><code>product-code.type</code> - The type of product
     *         code (<code>devpay</code> | <code>marketplace</code>). </li> <li>
     *         <p><code>ramdisk-id</code> - The RAM disk ID. </li> <li>
     *         <p><code>reason</code> - The reason for the current state of the
     *         instance (for example, shows "User Initiated [date]" when you stop or
     *         terminate the instance). Similar to the state-reason-code filter.
     *         </li> <li> <p><code>requester-id</code> - The ID of the entity that
     *         launched the instance on your behalf (for example, AWS Management
     *         Console, Auto Scaling, and so on). </li> <li>
     *         <p><code>reservation-id</code> - The ID of the instance's reservation.
     *         A reservation ID is created any time you launch an instance. A
     *         reservation ID has a one-to-one relationship with an instance launch
     *         request, but can be associated with more than one instance if you
     *         launch multiple instances using the same launch request. For example,
     *         if you launch one instance, you'll get one reservation ID. If you
     *         launch ten instances using the same launch request, you'll also get
     *         one reservation ID. </li> <li> <p><code>root-device-name</code> - The
     *         name of the root device for the instance (for example,
     *         <code>/dev/sda1</code> or <code>/dev/xvda</code>). </li> <li>
     *         <p><code>root-device-type</code> - The type of root device that the
     *         instance uses (<code>ebs</code> | <code>instance-store</code>). </li>
     *         <li> <p><code>source-dest-check</code> - Indicates whether the
     *         instance performs source/destination checking. A value of
     *         <code>true</code> means that checking is enabled, and
     *         <code>false</code> means checking is disabled. The value must be
     *         <code>false</code> for the instance to perform network address
     *         translation (NAT) in your VPC. </li> <li>
     *         <p><code>spot-instance-request-id</code> - The ID of the Spot instance
     *         request. </li> <li> <p><code>state-reason-code</code> - The reason
     *         code for the state change. </li> <li>
     *         <p><code>state-reason-message</code> - A message that describes the
     *         state change. </li> <li> <p><code>subnet-id</code> - The ID of the
     *         subnet for the instance. </li> <li>
     *         <p><code>tag</code>:<i>key</i>=<i>value</i> - The key/value
     *         combination of a tag assigned to the resource, where
     *         <code>tag</code>:<i>key</i> is the tag's key. </li> <li>
     *         <p><code>tag-key</code> - The key of a tag assigned to the resource.
     *         This filter is independent of the <code>tag-value</code> filter. For
     *         example, if you use both the filter "tag-key=Purpose" and the filter
     *         "tag-value=X", you get any resources assigned both the tag key Purpose
     *         (regardless of what the tag's value is), and the tag value X
     *         (regardless of what the tag's key is). If you want to list only
     *         resources where Purpose is X, see the
     *         <code>tag</code>:<i>key</i>=<i>value</i> filter. </li> <li>
     *         <p><code>tag-value</code> - The value of a tag assigned to the
     *         resource. This filter is independent of the <code>tag-key</code>
     *         filter. </li> <li> <p><code>tenancy</code> - The tenancy of an
     *         instance (<code>dedicated</code> | <code>default</code> |
     *         <code>host</code>). </li> <li> <p><code>virtualization-type</code> -
     *         The virtualization type of the instance (<code>paravirtual</code> |
     *         <code>hvm</code>). </li> <li> <p><code>vpc-id</code> - The ID of the
     *         VPC that the instance is running in. </li> <li>
     *         <p><code>network-interface.description</code> - The description of the
     *         network interface. </li> <li>
     *         <p><code>network-interface.subnet-id</code> - The ID of the subnet for
     *         the network interface. </li> <li>
     *         <p><code>network-interface.vpc-id</code> - The ID of the VPC for the
     *         network interface. </li> <li>
     *         <p><code>network-interface.network-interface-id</code> - The ID of the
     *         network interface. </li> <li>
     *         <p><code>network-interface.owner-id</code> - The ID of the owner of
     *         the network interface. </li> <li>
     *         <p><code>network-interface.availability-zone</code> - The Availability
     *         Zone for the network interface. </li> <li>
     *         <p><code>network-interface.requester-id</code> - The requester ID for
     *         the network interface. </li> <li>
     *         <p><code>network-interface.requester-managed</code> - Indicates
     *         whether the network interface is being managed by AWS. </li> <li>
     *         <p><code>network-interface.status</code> - The status of the network
     *         interface (<code>available</code>) | <code>in-use</code>). </li> <li>
     *         <p><code>network-interface.mac-address</code> - The MAC address of the
     *         network interface. </li> <li>
     *         <p><code>network-interface.private-dns-name</code> - The private DNS
     *         name of the network interface. </li> <li>
     *         <p><code>network-interface.source-dest-check</code> - Whether the
     *         network interface performs source/destination checking. A value of
     *         <code>true</code> means checking is enabled, and <code>false</code>
     *         means checking is disabled. The value must be <code>false</code> for
     *         the network interface to perform network address translation (NAT) in
     *         your VPC. </li> <li> <p><code>network-interface.group-id</code> - The
     *         ID of a security group associated with the network interface. </li>
     *         <li> <p><code>network-interface.group-name</code> - The name of a
     *         security group associated with the network interface. </li> <li>
     *         <p><code>network-interface.attachment.attachment-id</code> - The ID of
     *         the interface attachment. </li> <li>
     *         <p><code>network-interface.attachment.instance-id</code> - The ID of
     *         the instance to which the network interface is attached. </li> <li>
     *         <p><code>network-interface.attachment.instance-owner-id</code> - The
     *         owner ID of the instance to which the network interface is attached.
     *         </li> <li>
     *         <p><code>network-interface.addresses.private-ip-address</code> - The
     *         private IP address associated with the network interface. </li> <li>
     *         <p><code>network-interface.attachment.device-index</code> - The device
     *         index to which the network interface is attached. </li> <li>
     *         <p><code>network-interface.attachment.status</code> - The status of
     *         the attachment (<code>attaching</code> | <code>attached</code> |
     *         <code>detaching</code> | <code>detached</code>). </li> <li>
     *         <p><code>network-interface.attachment.attach-time</code> - The time
     *         that the network interface was attached to an instance. </li> <li>
     *         <p><code>network-interface.attachment.delete-on-termination</code> -
     *         Specifies whether the attachment is deleted when an instance is
     *         terminated. </li> <li>
     *         <p><code>network-interface.addresses.primary</code> - Specifies
     *         whether the IP address of the network interface is the primary private
     *         IP address. </li> <li>
     *         <p><code>network-interface.addresses.association.public-ip</code> -
     *         The ID of the association of an Elastic IP address with a network
     *         interface. </li> <li>
     *         <p><code>network-interface.addresses.association.ip-owner-id</code> -
     *         The owner ID of the private IP address associated with the network
     *         interface. </li> <li> <p><code>association.public-ip</code> - The
     *         address of the Elastic IP address bound to the network interface.
     *         </li> <li> <p><code>association.ip-owner-id</code> - The owner of the
     *         Elastic IP address associated with the network interface. </li> <li>
     *         <p><code>association.allocation-id</code> - The allocation ID returned
     *         when you allocated the Elastic IP address for your network interface.
     *         </li> <li> <p><code>association.association-id</code> - The
     *         association ID returned when the network interface was associated with
     *         an IP address. </li> </ul>
     *
     * @return A reference to this updated object so that method calls can be chained
     *         together.
     */
    public DescribeInstancesRequest withFilters(Filter... filters) {
        if (getFilters() == null) setFilters(new java.util.ArrayList<Filter>(filters.length));
        for (Filter value : filters) {
            getFilters().add(value);
        }
        return this;
    }
    
    /**
     * One or more filters. <ul> <li> <p><code>affinity</code> - The affinity
     * setting for an instance running on a Dedicated host
     * (<code>default</code> | <code>host</code>). </li> <li>
     * <p><code>architecture</code> - The instance architecture
     * (<code>i386</code> | <code>x86_64</code>). </li> <li>
     * <p><code>availability-zone</code> - The Availability Zone of the
     * instance. </li> <li> <p><code>block-device-mapping.attach-time</code>
     * - The attach time for an EBS volume mapped to the instance, for
     * example, <code>2010-09-15T17:15:20.000Z</code>. </li> <li>
     * <p><code>block-device-mapping.delete-on-termination</code> - A Boolean
     * that indicates whether the EBS volume is deleted on instance
     * termination. </li> <li>
     * <p><code>block-device-mapping.device-name</code> - The device name for
     * the EBS volume (for example, <code>/dev/sdh</code> or
     * <code>xvdh</code>). </li> <li>
     * <p><code>block-device-mapping.status</code> - The status for the EBS
     * volume (<code>attaching</code> | <code>attached</code> |
     * <code>detaching</code> | <code>detached</code>). </li> <li>
     * <p><code>block-device-mapping.volume-id</code> - The volume ID of the
     * EBS volume. </li> <li> <p><code>client-token</code> - The idempotency
     * token you provided when you launched the instance. </li> <li>
     * <p><code>dns-name</code> - The public DNS name of the instance. </li>
     * <li> <p><code>group-id</code> - The ID of the security group for the
     * instance. EC2-Classic only. </li> <li> <p><code>group-name</code> -
     * The name of the security group for the instance. EC2-Classic only.
     * </li> <li> <p><code>host-Id</code> - The ID of the Dedicated host on
     * which the instance is running, if applicable. </li> <li>
     * <p><code>hypervisor</code> - The hypervisor type of the instance
     * (<code>ovm</code> | <code>xen</code>). </li> <li>
     * <p><code>iam-instance-profile.arn</code> - The instance profile
     * associated with the instance. Specified as an ARN. </li> <li>
     * <p><code>image-id</code> - The ID of the image used to launch the
     * instance. </li> <li> <p><code>instance-id</code> - The ID of the
     * instance. </li> <li> <p><code>instance-lifecycle</code> - Indicates
     * whether this is a Spot Instance or a Scheduled Instance
     * (<code>spot</code> | <code>scheduled</code>). </li> <li>
     * <p><code>instance-state-code</code> - The state of the instance, as a
     * 16-bit unsigned integer. The high byte is an opaque internal value and
     * should be ignored. The low byte is set based on the state represented.
     * The valid values are: 0 (pending), 16 (running), 32 (shutting-down),
     * 48 (terminated), 64 (stopping), and 80 (stopped). </li> <li>
     * <p><code>instance-state-name</code> - The state of the instance
     * (<code>pending</code> | <code>running</code> |
     * <code>shutting-down</code> | <code>terminated</code> |
     * <code>stopping</code> | <code>stopped</code>). </li> <li>
     * <p><code>instance-type</code> - The type of instance (for example,
     * <code>t2.micro</code>). </li> <li> <p><code>instance.group-id</code> -
     * The ID of the security group for the instance. </li> <li>
     * <p><code>instance.group-name</code> - The name of the security group
     * for the instance. </li> <li> <p><code>ip-address</code> - The public
     * IP address of the instance. </li> <li> <p><code>kernel-id</code> - The
     * kernel ID. </li> <li> <p><code>key-name</code> - The name of the key
     * pair used when the instance was launched. </li> <li>
     * <p><code>launch-index</code> - When launching multiple instances, this
     * is the index for the instance in the launch group (for example, 0, 1,
     * 2, and so on). </li> <li> <p><code>launch-time</code> - The time when
     * the instance was launched. </li> <li> <p><code>monitoring-state</code>
     * - Indicates whether monitoring is enabled for the instance
     * (<code>disabled</code> | <code>enabled</code>). </li> <li>
     * <p><code>owner-id</code> - The AWS account ID of the instance owner.
     * </li> <li> <p><code>placement-group-name</code> - The name of the
     * placement group for the instance. </li> <li> <p><code>platform</code>
     * - The platform. Use <code>windows</code> if you have Windows
     * instances; otherwise, leave blank. </li> <li>
     * <p><code>private-dns-name</code> - The private DNS name of the
     * instance. </li> <li> <p><code>private-ip-address</code> - The private
     * IP address of the instance. </li> <li> <p><code>product-code</code> -
     * The product code associated with the AMI used to launch the instance.
     * </li> <li> <p><code>product-code.type</code> - The type of product
     * code (<code>devpay</code> | <code>marketplace</code>). </li> <li>
     * <p><code>ramdisk-id</code> - The RAM disk ID. </li> <li>
     * <p><code>reason</code> - The reason for the current state of the
     * instance (for example, shows "User Initiated [date]" when you stop or
     * terminate the instance). Similar to the state-reason-code filter.
     * </li> <li> <p><code>requester-id</code> - The ID of the entity that
     * launched the instance on your behalf (for example, AWS Management
     * Console, Auto Scaling, and so on). </li> <li>
     * <p><code>reservation-id</code> - The ID of the instance's reservation.
     * A reservation ID is created any time you launch an instance. A
     * reservation ID has a one-to-one relationship with an instance launch
     * request, but can be associated with more than one instance if you
     * launch multiple instances using the same launch request. For example,
     * if you launch one instance, you'll get one reservation ID. If you
     * launch ten instances using the same launch request, you'll also get
     * one reservation ID. </li> <li> <p><code>root-device-name</code> - The
     * name of the root device for the instance (for example,
     * <code>/dev/sda1</code> or <code>/dev/xvda</code>). </li> <li>
     * <p><code>root-device-type</code> - The type of root device that the
     * instance uses (<code>ebs</code> | <code>instance-store</code>). </li>
     * <li> <p><code>source-dest-check</code> - Indicates whether the
     * instance performs source/destination checking. A value of
     * <code>true</code> means that checking is enabled, and
     * <code>false</code> means checking is disabled. The value must be
     * <code>false</code> for the instance to perform network address
     * translation (NAT) in your VPC. </li> <li>
     * <p><code>spot-instance-request-id</code> - The ID of the Spot instance
     * request. </li> <li> <p><code>state-reason-code</code> - The reason
     * code for the state change. </li> <li>
     * <p><code>state-reason-message</code> - A message that describes the
     * state change. </li> <li> <p><code>subnet-id</code> - The ID of the
     * subnet for the instance. </li> <li>
     * <p><code>tag</code>:<i>key</i>=<i>value</i> - The key/value
     * combination of a tag assigned to the resource, where
     * <code>tag</code>:<i>key</i> is the tag's key. </li> <li>
     * <p><code>tag-key</code> - The key of a tag assigned to the resource.
     * This filter is independent of the <code>tag-value</code> filter. For
     * example, if you use both the filter "tag-key=Purpose" and the filter
     * "tag-value=X", you get any resources assigned both the tag key Purpose
     * (regardless of what the tag's value is), and the tag value X
     * (regardless of what the tag's key is). If you want to list only
     * resources where Purpose is X, see the
     * <code>tag</code>:<i>key</i>=<i>value</i> filter. </li> <li>
     * <p><code>tag-value</code> - The value of a tag assigned to the
     * resource. This filter is independent of the <code>tag-key</code>
     * filter. </li> <li> <p><code>tenancy</code> - The tenancy of an
     * instance (<code>dedicated</code> | <code>default</code> |
     * <code>host</code>). </li> <li> <p><code>virtualization-type</code> -
     * The virtualization type of the instance (<code>paravirtual</code> |
     * <code>hvm</code>). </li> <li> <p><code>vpc-id</code> - The ID of the
     * VPC that the instance is running in. </li> <li>
     * <p><code>network-interface.description</code> - The description of the
     * network interface. </li> <li>
     * <p><code>network-interface.subnet-id</code> - The ID of the subnet for
     * the network interface. </li> <li>
     * <p><code>network-interface.vpc-id</code> - The ID of the VPC for the
     * network interface. </li> <li>
     * <p><code>network-interface.network-interface-id</code> - The ID of the
     * network interface. </li> <li>
     * <p><code>network-interface.owner-id</code> - The ID of the owner of
     * the network interface. </li> <li>
     * <p><code>network-interface.availability-zone</code> - The Availability
     * Zone for the network interface. </li> <li>
     * <p><code>network-interface.requester-id</code> - The requester ID for
     * the network interface. </li> <li>
     * <p><code>network-interface.requester-managed</code> - Indicates
     * whether the network interface is being managed by AWS. </li> <li>
     * <p><code>network-interface.status</code> - The status of the network
     * interface (<code>available</code>) | <code>in-use</code>). </li> <li>
     * <p><code>network-interface.mac-address</code> - The MAC address of the
     * network interface. </li> <li>
     * <p><code>network-interface.private-dns-name</code> - The private DNS
     * name of the network interface. </li> <li>
     * <p><code>network-interface.source-dest-check</code> - Whether the
     * network interface performs source/destination checking. A value of
     * <code>true</code> means checking is enabled, and <code>false</code>
     * means checking is disabled. The value must be <code>false</code> for
     * the network interface to perform network address translation (NAT) in
     * your VPC. </li> <li> <p><code>network-interface.group-id</code> - The
     * ID of a security group associated with the network interface. </li>
     * <li> <p><code>network-interface.group-name</code> - The name of a
     * security group associated with the network interface. </li> <li>
     * <p><code>network-interface.attachment.attachment-id</code> - The ID of
     * the interface attachment. </li> <li>
     * <p><code>network-interface.attachment.instance-id</code> - The ID of
     * the instance to which the network interface is attached. </li> <li>
     * <p><code>network-interface.attachment.instance-owner-id</code> - The
     * owner ID of the instance to which the network interface is attached.
     * </li> <li>
     * <p><code>network-interface.addresses.private-ip-address</code> - The
     * private IP address associated with the network interface. </li> <li>
     * <p><code>network-interface.attachment.device-index</code> - The device
     * index to which the network interface is attached. </li> <li>
     * <p><code>network-interface.attachment.status</code> - The status of
     * the attachment (<code>attaching</code> | <code>attached</code> |
     * <code>detaching</code> | <code>detached</code>). </li> <li>
     * <p><code>network-interface.attachment.attach-time</code> - The time
     * that the network interface was attached to an instance. </li> <li>
     * <p><code>network-interface.attachment.delete-on-termination</code> -
     * Specifies whether the attachment is deleted when an instance is
     * terminated. </li> <li>
     * <p><code>network-interface.addresses.primary</code> - Specifies
     * whether the IP address of the network interface is the primary private
     * IP address. </li> <li>
     * <p><code>network-interface.addresses.association.public-ip</code> -
     * The ID of the association of an Elastic IP address with a network
     * interface. </li> <li>
     * <p><code>network-interface.addresses.association.ip-owner-id</code> -
     * The owner ID of the private IP address associated with the network
     * interface. </li> <li> <p><code>association.public-ip</code> - The
     * address of the Elastic IP address bound to the network interface.
     * </li> <li> <p><code>association.ip-owner-id</code> - The owner of the
     * Elastic IP address associated with the network interface. </li> <li>
     * <p><code>association.allocation-id</code> - The allocation ID returned
     * when you allocated the Elastic IP address for your network interface.
     * </li> <li> <p><code>association.association-id</code> - The
     * association ID returned when the network interface was associated with
     * an IP address. </li> </ul>
     * <p>
     * Returns a reference to this object so that method calls can be chained together.
     *
     * @param filters One or more filters. <ul> <li> <p><code>affinity</code> - The affinity
     *         setting for an instance running on a Dedicated host
     *         (<code>default</code> | <code>host</code>). </li> <li>
     *         <p><code>architecture</code> - The instance architecture
     *         (<code>i386</code> | <code>x86_64</code>). </li> <li>
     *         <p><code>availability-zone</code> - The Availability Zone of the
     *         instance. </li> <li> <p><code>block-device-mapping.attach-time</code>
     *         - The attach time for an EBS volume mapped to the instance, for
     *         example, <code>2010-09-15T17:15:20.000Z</code>. </li> <li>
     *         <p><code>block-device-mapping.delete-on-termination</code> - A Boolean
     *         that indicates whether the EBS volume is deleted on instance
     *         termination. </li> <li>
     *         <p><code>block-device-mapping.device-name</code> - The device name for
     *         the EBS volume (for example, <code>/dev/sdh</code> or
     *         <code>xvdh</code>). </li> <li>
     *         <p><code>block-device-mapping.status</code> - The status for the EBS
     *         volume (<code>attaching</code> | <code>attached</code> |
     *         <code>detaching</code> | <code>detached</code>). </li> <li>
     *         <p><code>block-device-mapping.volume-id</code> - The volume ID of the
     *         EBS volume. </li> <li> <p><code>client-token</code> - The idempotency
     *         token you provided when you launched the instance. </li> <li>
     *         <p><code>dns-name</code> - The public DNS name of the instance. </li>
     *         <li> <p><code>group-id</code> - The ID of the security group for the
     *         instance. EC2-Classic only. </li> <li> <p><code>group-name</code> -
     *         The name of the security group for the instance. EC2-Classic only.
     *         </li> <li> <p><code>host-Id</code> - The ID of the Dedicated host on
     *         which the instance is running, if applicable. </li> <li>
     *         <p><code>hypervisor</code> - The hypervisor type of the instance
     *         (<code>ovm</code> | <code>xen</code>). </li> <li>
     *         <p><code>iam-instance-profile.arn</code> - The instance profile
     *         associated with the instance. Specified as an ARN. </li> <li>
     *         <p><code>image-id</code> - The ID of the image used to launch the
     *         instance. </li> <li> <p><code>instance-id</code> - The ID of the
     *         instance. </li> <li> <p><code>instance-lifecycle</code> - Indicates
     *         whether this is a Spot Instance or a Scheduled Instance
     *         (<code>spot</code> | <code>scheduled</code>). </li> <li>
     *         <p><code>instance-state-code</code> - The state of the instance, as a
     *         16-bit unsigned integer. The high byte is an opaque internal value and
     *         should be ignored. The low byte is set based on the state represented.
     *         The valid values are: 0 (pending), 16 (running), 32 (shutting-down),
     *         48 (terminated), 64 (stopping), and 80 (stopped). </li> <li>
     *         <p><code>instance-state-name</code> - The state of the instance
     *         (<code>pending</code> | <code>running</code> |
     *         <code>shutting-down</code> | <code>terminated</code> |
     *         <code>stopping</code> | <code>stopped</code>). </li> <li>
     *         <p><code>instance-type</code> - The type of instance (for example,
     *         <code>t2.micro</code>). </li> <li> <p><code>instance.group-id</code> -
     *         The ID of the security group for the instance. </li> <li>
     *         <p><code>instance.group-name</code> - The name of the security group
     *         for the instance. </li> <li> <p><code>ip-address</code> - The public
     *         IP address of the instance. </li> <li> <p><code>kernel-id</code> - The
     *         kernel ID. </li> <li> <p><code>key-name</code> - The name of the key
     *         pair used when the instance was launched. </li> <li>
     *         <p><code>launch-index</code> - When launching multiple instances, this
     *         is the index for the instance in the launch group (for example, 0, 1,
     *         2, and so on). </li> <li> <p><code>launch-time</code> - The time when
     *         the instance was launched. </li> <li> <p><code>monitoring-state</code>
     *         - Indicates whether monitoring is enabled for the instance
     *         (<code>disabled</code> | <code>enabled</code>). </li> <li>
     *         <p><code>owner-id</code> - The AWS account ID of the instance owner.
     *         </li> <li> <p><code>placement-group-name</code> - The name of the
     *         placement group for the instance. </li> <li> <p><code>platform</code>
     *         - The platform. Use <code>windows</code> if you have Windows
     *         instances; otherwise, leave blank. </li> <li>
     *         <p><code>private-dns-name</code> - The private DNS name of the
     *         instance. </li> <li> <p><code>private-ip-address</code> - The private
     *         IP address of the instance. </li> <li> <p><code>product-code</code> -
     *         The product code associated with the AMI used to launch the instance.
     *         </li> <li> <p><code>product-code.type</code> - The type of product
     *         code (<code>devpay</code> | <code>marketplace</code>). </li> <li>
     *         <p><code>ramdisk-id</code> - The RAM disk ID. </li> <li>
     *         <p><code>reason</code> - The reason for the current state of the
     *         instance (for example, shows "User Initiated [date]" when you stop or
     *         terminate the instance). Similar to the state-reason-code filter.
     *         </li> <li> <p><code>requester-id</code> - The ID of the entity that
     *         launched the instance on your behalf (for example, AWS Management
     *         Console, Auto Scaling, and so on). </li> <li>
     *         <p><code>reservation-id</code> - The ID of the instance's reservation.
     *         A reservation ID is created any time you launch an instance. A
     *         reservation ID has a one-to-one relationship with an instance launch
     *         request, but can be associated with more than one instance if you
     *         launch multiple instances using the same launch request. For example,
     *         if you launch one instance, you'll get one reservation ID. If you
     *         launch ten instances using the same launch request, you'll also get
     *         one reservation ID. </li> <li> <p><code>root-device-name</code> - The
     *         name of the root device for the instance (for example,
     *         <code>/dev/sda1</code> or <code>/dev/xvda</code>). </li> <li>
     *         <p><code>root-device-type</code> - The type of root device that the
     *         instance uses (<code>ebs</code> | <code>instance-store</code>). </li>
     *         <li> <p><code>source-dest-check</code> - Indicates whether the
     *         instance performs source/destination checking. A value of
     *         <code>true</code> means that checking is enabled, and
     *         <code>false</code> means checking is disabled. The value must be
     *         <code>false</code> for the instance to perform network address
     *         translation (NAT) in your VPC. </li> <li>
     *         <p><code>spot-instance-request-id</code> - The ID of the Spot instance
     *         request. </li> <li> <p><code>state-reason-code</code> - The reason
     *         code for the state change. </li> <li>
     *         <p><code>state-reason-message</code> - A message that describes the
     *         state change. </li> <li> <p><code>subnet-id</code> - The ID of the
     *         subnet for the instance. </li> <li>
     *         <p><code>tag</code>:<i>key</i>=<i>value</i> - The key/value
     *         combination of a tag assigned to the resource, where
     *         <code>tag</code>:<i>key</i> is the tag's key. </li> <li>
     *         <p><code>tag-key</code> - The key of a tag assigned to the resource.
     *         This filter is independent of the <code>tag-value</code> filter. For
     *         example, if you use both the filter "tag-key=Purpose" and the filter
     *         "tag-value=X", you get any resources assigned both the tag key Purpose
     *         (regardless of what the tag's value is), and the tag value X
     *         (regardless of what the tag's key is). If you want to list only
     *         resources where Purpose is X, see the
     *         <code>tag</code>:<i>key</i>=<i>value</i> filter. </li> <li>
     *         <p><code>tag-value</code> - The value of a tag assigned to the
     *         resource. This filter is independent of the <code>tag-key</code>
     *         filter. </li> <li> <p><code>tenancy</code> - The tenancy of an
     *         instance (<code>dedicated</code> | <code>default</code> |
     *         <code>host</code>). </li> <li> <p><code>virtualization-type</code> -
     *         The virtualization type of the instance (<code>paravirtual</code> |
     *         <code>hvm</code>). </li> <li> <p><code>vpc-id</code> - The ID of the
     *         VPC that the instance is running in. </li> <li>
     *         <p><code>network-interface.description</code> - The description of the
     *         network interface. </li> <li>
     *         <p><code>network-interface.subnet-id</code> - The ID of the subnet for
     *         the network interface. </li> <li>
     *         <p><code>network-interface.vpc-id</code> - The ID of the VPC for the
     *         network interface. </li> <li>
     *         <p><code>network-interface.network-interface-id</code> - The ID of the
     *         network interface. </li> <li>
     *         <p><code>network-interface.owner-id</code> - The ID of the owner of
     *         the network interface. </li> <li>
     *         <p><code>network-interface.availability-zone</code> - The Availability
     *         Zone for the network interface. </li> <li>
     *         <p><code>network-interface.requester-id</code> - The requester ID for
     *         the network interface. </li> <li>
     *         <p><code>network-interface.requester-managed</code> - Indicates
     *         whether the network interface is being managed by AWS. </li> <li>
     *         <p><code>network-interface.status</code> - The status of the network
     *         interface (<code>available</code>) | <code>in-use</code>). </li> <li>
     *         <p><code>network-interface.mac-address</code> - The MAC address of the
     *         network interface. </li> <li>
     *         <p><code>network-interface.private-dns-name</code> - The private DNS
     *         name of the network interface. </li> <li>
     *         <p><code>network-interface.source-dest-check</code> - Whether the
     *         network interface performs source/destination checking. A value of
     *         <code>true</code> means checking is enabled, and <code>false</code>
     *         means checking is disabled. The value must be <code>false</code> for
     *         the network interface to perform network address translation (NAT) in
     *         your VPC. </li> <li> <p><code>network-interface.group-id</code> - The
     *         ID of a security group associated with the network interface. </li>
     *         <li> <p><code>network-interface.group-name</code> - The name of a
     *         security group associated with the network interface. </li> <li>
     *         <p><code>network-interface.attachment.attachment-id</code> - The ID of
     *         the interface attachment. </li> <li>
     *         <p><code>network-interface.attachment.instance-id</code> - The ID of
     *         the instance to which the network interface is attached. </li> <li>
     *         <p><code>network-interface.attachment.instance-owner-id</code> - The
     *         owner ID of the instance to which the network interface is attached.
     *         </li> <li>
     *         <p><code>network-interface.addresses.private-ip-address</code> - The
     *         private IP address associated with the network interface. </li> <li>
     *         <p><code>network-interface.attachment.device-index</code> - The device
     *         index to which the network interface is attached. </li> <li>
     *         <p><code>network-interface.attachment.status</code> - The status of
     *         the attachment (<code>attaching</code> | <code>attached</code> |
     *         <code>detaching</code> | <code>detached</code>). </li> <li>
     *         <p><code>network-interface.attachment.attach-time</code> - The time
     *         that the network interface was attached to an instance. </li> <li>
     *         <p><code>network-interface.attachment.delete-on-termination</code> -
     *         Specifies whether the attachment is deleted when an instance is
     *         terminated. </li> <li>
     *         <p><code>network-interface.addresses.primary</code> - Specifies
     *         whether the IP address of the network interface is the primary private
     *         IP address. </li> <li>
     *         <p><code>network-interface.addresses.association.public-ip</code> -
     *         The ID of the association of an Elastic IP address with a network
     *         interface. </li> <li>
     *         <p><code>network-interface.addresses.association.ip-owner-id</code> -
     *         The owner ID of the private IP address associated with the network
     *         interface. </li> <li> <p><code>association.public-ip</code> - The
     *         address of the Elastic IP address bound to the network interface.
     *         </li> <li> <p><code>association.ip-owner-id</code> - The owner of the
     *         Elastic IP address associated with the network interface. </li> <li>
     *         <p><code>association.allocation-id</code> - The allocation ID returned
     *         when you allocated the Elastic IP address for your network interface.
     *         </li> <li> <p><code>association.association-id</code> - The
     *         association ID returned when the network interface was associated with
     *         an IP address. </li> </ul>
     *
     * @return A reference to this updated object so that method calls can be chained
     *         together.
     */
    public DescribeInstancesRequest withFilters(java.util.Collection<Filter> filters) {
        if (filters == null) {
            this.filters = null;
        } else {
            com.amazonaws.internal.ListWithAutoConstructFlag<Filter> filtersCopy = new com.amazonaws.internal.ListWithAutoConstructFlag<Filter>(filters.size());
            filtersCopy.addAll(filters);
            this.filters = filtersCopy;
        }

        return this;
    }

    /**
     * The token to request the next page of results.
     *
     * @return The token to request the next page of results.
     */
    public String getNextToken() {
        return nextToken;
    }
    
    /**
     * The token to request the next page of results.
     *
     * @param nextToken The token to request the next page of results.
     */
    public void setNextToken(String nextToken) {
        this.nextToken = nextToken;
    }
    
    /**
     * The token to request the next page of results.
     * <p>
     * Returns a reference to this object so that method calls can be chained together.
     *
     * @param nextToken The token to request the next page of results.
     *
     * @return A reference to this updated object so that method calls can be chained
     *         together.
     */
    public DescribeInstancesRequest withNextToken(String nextToken) {
        this.nextToken = nextToken;
        return this;
    }

    /**
     * The maximum number of results to return in a single call. To retrieve
     * the remaining results, make another call with the returned
     * <code>NextToken</code> value. This value can be between 5 and 1000.
     * You cannot specify this parameter and the instance IDs parameter or
     * tag filters in the same call.
     *
     * @return The maximum number of results to return in a single call. To retrieve
     *         the remaining results, make another call with the returned
     *         <code>NextToken</code> value. This value can be between 5 and 1000.
     *         You cannot specify this parameter and the instance IDs parameter or
     *         tag filters in the same call.
     */
    public Integer getMaxResults() {
        return maxResults;
    }
    
    /**
     * The maximum number of results to return in a single call. To retrieve
     * the remaining results, make another call with the returned
     * <code>NextToken</code> value. This value can be between 5 and 1000.
     * You cannot specify this parameter and the instance IDs parameter or
     * tag filters in the same call.
     *
     * @param maxResults The maximum number of results to return in a single call. To retrieve
     *         the remaining results, make another call with the returned
     *         <code>NextToken</code> value. This value can be between 5 and 1000.
     *         You cannot specify this parameter and the instance IDs parameter or
     *         tag filters in the same call.
     */
    public void setMaxResults(Integer maxResults) {
        this.maxResults = maxResults;
    }
    
    /**
     * The maximum number of results to return in a single call. To retrieve
     * the remaining results, make another call with the returned
     * <code>NextToken</code> value. This value can be between 5 and 1000.
     * You cannot specify this parameter and the instance IDs parameter or
     * tag filters in the same call.
     * <p>
     * Returns a reference to this object so that method calls can be chained together.
     *
     * @param maxResults The maximum number of results to return in a single call. To retrieve
     *         the remaining results, make another call with the returned
     *         <code>NextToken</code> value. This value can be between 5 and 1000.
     *         You cannot specify this parameter and the instance IDs parameter or
     *         tag filters in the same call.
     *
     * @return A reference to this updated object so that method calls can be chained
     *         together.
     */
    public DescribeInstancesRequest withMaxResults(Integer maxResults) {
        this.maxResults = maxResults;
        return this;
    }

    /**
     * This method is intended for internal use only.
     * Returns the marshaled request configured with additional parameters to
     * enable operation dry-run.
     */
    @Override
    public Request<DescribeInstancesRequest> getDryRunRequest() {
        Request<DescribeInstancesRequest> request = new DescribeInstancesRequestMarshaller().marshall(this);
        request.addParameter("DryRun", Boolean.toString(true));
        return request;
    }
    
    /**
     * Returns a string representation of this object; useful for testing and
     * debugging.
     *
     * @return A string representation of this object.
     *
     * @see java.lang.Object#toString()
     */
    @Override
    public String toString() {
        StringBuilder sb = new StringBuilder();
        sb.append("{");
        if (getInstanceIds() != null) sb.append("InstanceIds: " + getInstanceIds() + ",");
        if (getFilters() != null) sb.append("Filters: " + getFilters() + ",");
        if (getNextToken() != null) sb.append("NextToken: " + getNextToken() + ",");
        if (getMaxResults() != null) sb.append("MaxResults: " + getMaxResults() );
        sb.append("}");
        return sb.toString();
    }
    
    @Override
    public int hashCode() {
        final int prime = 31;
        int hashCode = 1;
        
        hashCode = prime * hashCode + ((getInstanceIds() == null) ? 0 : getInstanceIds().hashCode()); 
        hashCode = prime * hashCode + ((getFilters() == null) ? 0 : getFilters().hashCode()); 
        hashCode = prime * hashCode + ((getNextToken() == null) ? 0 : getNextToken().hashCode()); 
        hashCode = prime * hashCode + ((getMaxResults() == null) ? 0 : getMaxResults().hashCode()); 
        return hashCode;
    }
    
    @Override
    public boolean equals(Object obj) {
        if (this == obj) return true;
        if (obj == null) return false;

        if (obj instanceof DescribeInstancesRequest == false) return false;
        DescribeInstancesRequest other = (DescribeInstancesRequest)obj;
        
        if (other.getInstanceIds() == null ^ this.getInstanceIds() == null) return false;
        if (other.getInstanceIds() != null && other.getInstanceIds().equals(this.getInstanceIds()) == false) return false; 
        if (other.getFilters() == null ^ this.getFilters() == null) return false;
        if (other.getFilters() != null && other.getFilters().equals(this.getFilters()) == false) return false; 
        if (other.getNextToken() == null ^ this.getNextToken() == null) return false;
        if (other.getNextToken() != null && other.getNextToken().equals(this.getNextToken()) == false) return false; 
        if (other.getMaxResults() == null ^ this.getMaxResults() == null) return false;
        if (other.getMaxResults() != null && other.getMaxResults().equals(this.getMaxResults()) == false) return false; 
        return true;
    }
    
}