/* * Copyright 2018-2023 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.appconfigdata; import javax.annotation.Generated; import com.amazonaws.services.appconfigdata.model.*; /** * Interface for accessing AWS AppConfig Data asynchronously. Each asynchronous method will return a Java Future object * representing the asynchronous operation; overloads which accept an {@code AsyncHandler} can be used to receive * notification when an asynchronous operation completes. *
* Note: Do not directly implement this interface, new methods are added to it regularly. Extend from * {@link com.amazonaws.services.appconfigdata.AbstractAWSAppConfigDataAsync} instead. *
**
* AppConfig Data provides the data plane APIs your application uses to retrieve configuration data. Here's how it * works: *
** Your application retrieves configuration data by first establishing a configuration session using the AppConfig Data * StartConfigurationSession API action. Your session's client then makes periodic calls to * GetLatestConfiguration to check for and retrieve the latest data available. *
*
* When calling StartConfigurationSession
, your code sends the following information:
*
* Identifiers (ID or name) of an AppConfig application, environment, and configuration profile that the session tracks. *
*
* (Optional) The minimum amount of time the session's client must wait between calls to
* GetLatestConfiguration
.
*
* In response, AppConfig provides an InitialConfigurationToken
to be given to the session's client and
* used the first time it calls GetLatestConfiguration
for that session.
*
* This token should only be used once in your first call to GetLatestConfiguration
. You must use
* the new token in the GetLatestConfiguration
response (NextPollConfigurationToken
) in each
* subsequent call to GetLatestConfiguration
.
*
* When calling GetLatestConfiguration
, your client code sends the most recent
* ConfigurationToken
value it has and receives in response:
*
* NextPollConfigurationToken
: the ConfigurationToken
value to use on the next call to
* GetLatestConfiguration
.
*
* NextPollIntervalInSeconds
: the duration the client should wait before making its next call to
* GetLatestConfiguration
. This duration may vary over the course of the session, so it should be used
* instead of the value sent on the StartConfigurationSession
call.
*
* The configuration: the latest data intended for the session. This may be empty if the client already has the latest * version of the configuration. *
*
* The InitialConfigurationToken
and NextPollConfigurationToken
should only be used once. To
* support long poll use cases, the tokens are valid for up to 24 hours. If a GetLatestConfiguration
call
* uses an expired token, the system returns BadRequestException
.
*
* For more information and to view example CLI commands that show how to retrieve a configuration using the AppConfig
* Data StartConfigurationSession
and GetLatestConfiguration
API actions, see Retrieving the
* configuration in the AppConfig User Guide.
*
* Retrieves the latest deployed configuration. This API may return empty configuration data if the client already * has the latest version. For more information about this API action and to view example CLI commands that show how * to use it with the StartConfigurationSession API action, see Retrieving * the configuration in the AppConfig User Guide. *
** Note the following important information. *
*
* Each configuration token is only valid for one call to GetLatestConfiguration
. The
* GetLatestConfiguration
response includes a NextPollConfigurationToken
that should
* always replace the token used for the just-completed call in preparation for the next one.
*
* GetLatestConfiguration
is a priced call. For more information, see Pricing.
*
* Retrieves the latest deployed configuration. This API may return empty configuration data if the client already * has the latest version. For more information about this API action and to view example CLI commands that show how * to use it with the StartConfigurationSession API action, see Retrieving * the configuration in the AppConfig User Guide. *
** Note the following important information. *
*
* Each configuration token is only valid for one call to GetLatestConfiguration
. The
* GetLatestConfiguration
response includes a NextPollConfigurationToken
that should
* always replace the token used for the just-completed call in preparation for the next one.
*
* GetLatestConfiguration
is a priced call. For more information, see Pricing.
*
* Starts a configuration session used to retrieve a deployed configuration. For more information about this API * action and to view example CLI commands that show how to use it with the GetLatestConfiguration API * action, see Retrieving * the configuration in the AppConfig User Guide. *
* * @param startConfigurationSessionRequest * @return A Java Future containing the result of the StartConfigurationSession operation returned by the service. * @sample AWSAppConfigDataAsync.StartConfigurationSession * @see AWS API Documentation */ java.util.concurrent.Future* Starts a configuration session used to retrieve a deployed configuration. For more information about this API * action and to view example CLI commands that show how to use it with the GetLatestConfiguration API * action, see Retrieving * the configuration in the AppConfig User Guide. *
* * @param startConfigurationSessionRequest * @param asyncHandler * Asynchronous callback handler for events in the lifecycle of the request. Users can provide an * implementation of the callback methods in this interface to receive notification of successful or * unsuccessful completion of the operation. * @return A Java Future containing the result of the StartConfigurationSession operation returned by the service. * @sample AWSAppConfigDataAsyncHandler.StartConfigurationSession * @see AWS API Documentation */ java.util.concurrent.Future