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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.services.ec2.model;

import java.io.Serializable;

/**
 * 
 * Describes the storage location for an instance store-backed AMI.
 * 
 */
public class Storage implements Serializable {

    /**
     * An Amazon S3 storage location.
     */
    private S3Storage s3;

    /**
     * An Amazon S3 storage location.
     *
     * @return An Amazon S3 storage location.
     */
    public S3Storage getS3() {
        return s3;
    }
    
    /**
     * An Amazon S3 storage location.
     *
     * @param s3 An Amazon S3 storage location.
     */
    public void setS3(S3Storage s3) {
        this.s3 = s3;
    }
    
    /**
     * An Amazon S3 storage location.
     * 
     * Returns a reference to this object so that method calls can be chained together.
     *
     * @param s3 An Amazon S3 storage location.
     *
     * @return A reference to this updated object so that method calls can be chained 
     *         together.
     */
    public Storage withS3(S3Storage s3) {
        this.s3 = s3;
        return this;
    }

    /**
     * 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 (getS3() != null) sb.append("S3: " + getS3() );
        sb.append("}");
        return sb.toString();
    }
    
    @Override
    public int hashCode() {
        final int prime = 31;
        int hashCode = 1;
        
        hashCode = prime * hashCode + ((getS3() == null) ? 0 : getS3().hashCode()); 
        return hashCode;
    }
    
    @Override
    public boolean equals(Object obj) {
        if (this == obj) return true;
        if (obj == null) return false;

        if (obj instanceof Storage == false) return false;
        Storage other = (Storage)obj;
        
        if (other.getS3() == null ^ this.getS3() == null) return false;
        if (other.getS3() != null && other.getS3().equals(this.getS3()) == false) return false; 
        return true;
    }
    
}