/*
 * Copyright 2015-2023 Amazon Technologies, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *    http://aws.amazon.com/apache2.0
 *
 * 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.dynamodbv2.xspec;

import com.amazonaws.annotation.Beta;


/**
 * Represents an operand for building expressions.
 * <p>
 * Underlying grammar:
 * <pre>
 * operand
 *      : path          # PathOperand
 *      | literal       # LiteralOperand
 *      | function      # FunctionCall
 *      | '(' operand ')'
 *      ;
 * </pre>
 * 
 * @see PathOperand
 * @see FunctionOperand
 * @see LiteralOperand
 */
@Beta
public abstract class Operand extends UnitOfExpression {
}