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The AWS Java SDK for Amazon S3 module holds the client classes that are used for communicating with Amazon Simple Storage Service

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/*
 * Copyright 2010-2024 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.s3.transfer;

import java.io.File;
import com.amazonaws.services.s3.model.ObjectMetadata;

/**
 * This is the callback interface which is used by TransferManager.uploadDirectory and
 * TransferManager.uploadFileList. The callback is invoked for each file that is uploaded by
 * TransferManager and given an opportunity to specify the metadata for each file.
 */
public interface ObjectMetadataProvider {
	
	/*
	 * This method is called for every file that is uploaded by TransferManager
	 * and gives an opportunity to specify the metadata for the file.
	 * 
	 * @param file
	 * 			The file being uploaded. 
	 * 
	 * @param metadata
	 * 			The default metadata for the file. You can modify this object to specify
	 * your own metadata.
	 */
	public void provideObjectMetadata(final File file, final ObjectMetadata metadata);
	
}