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/*
 * Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

package javax.mail;

/**
 * A {@link javax.activation.DataSource DataSource} that also implements
 * EncodingAware may specify the Content-Transfer-Encoding
 * to use for its data.  Valid Content-Transfer-Encoding values specified
 * by RFC 2045 are "7bit", "8bit", "quoted-printable", "base64", and "binary".
 * 

* For example, a {@link javax.activation.FileDataSource FileDataSource} * could be created that forces all files to be base64 encoded: *

 *  public class Base64FileDataSource extends FileDataSource
 *					implements EncodingAware {
 *	public Base64FileDataSource(File file) {
 *	    super(file);
 *	}
 *
 *	// implements EncodingAware.getEncoding()
 *	public String getEncoding() {
 *	    return "base64";
 *	}
 *  }
 * 

* * @since JavaMail 1.5 * @author Bill Shannon */ public interface EncodingAware { /** * Return the MIME Content-Transfer-Encoding to use for this data, * or null to indicate that an appropriate value should be chosen * by the caller. * * @return the Content-Transfer-Encoding value, or null */ public String getEncoding(); }





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