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The Amazon Web Services SDK for Java provides Java APIs for building software on AWS' cost-effective, scalable, and reliable infrastructure products. The AWS Java SDK allows developers to code against APIs for all of Amazon's infrastructure web services (Amazon S3, Amazon EC2, Amazon SQS, Amazon Relational Database Service, Amazon AutoScaling, etc).

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/*
 * Copyright 2010-2014 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.handlers;

import com.amazonaws.Request;
import com.amazonaws.util.TimingInfo;

/**
 * @deprecated by {@link RequestHandler2}.
 *  
 * Interface for addition request handling in clients. A request handler is
 * executed on a request object before it is sent to the client runtime
 * to be executed.
 */
@Deprecated
public interface RequestHandler {

    /**
     * Runs any additional processing logic on the specified request (before it
     * is executed by the client runtime).
     *
     * @param request
     *            The low level request being processed.
     */
    public void beforeRequest(Request request);

	/**
	 * Runs any additional processing logic on the specified request (after is
	 * has been executed by the client runtime).
	 *
	 * @param request
	 *            The low level request being processed.
	 * @param response
	 *            The response generated from the specified request.
	 * @param timingInfo
	 *            Timing information on the request's processing.
	 */
    public void afterResponse(Request request, Object response, TimingInfo timingInfo);

	/**
	 * Runs any additional processing logic on a request after it has failed.
	 *
	 * @param request
	 *            The request that generated an error.
	 * @param e
	 *            The error that resulted from executing the request.
	 */
    public void afterError(Request request, Exception e);

}