/*

 * Copyright 2003-2004 Sun Microsystems, Inc.  All Rights Reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Sun designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Sun in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

package java.net;

import java.io.OutputStream;

import java.io.IOException;

/**

 * Represents channels for storing resources in the

 * ResponseCache. Instances of such a class provide an

 * OutputStream object which is called by protocol handlers to

 * store the resource data into the cache, and also an abort() method

 * which allows a cache store operation to be interrupted and

 * abandoned. If an IOException is encountered while reading the

 * response or writing to the cache, the current cache store operation

 * will be aborted.

 *

 * @author Yingxian Wang

 * @since 1.5

 */

public abstract class CacheRequest {

    /**

     * Returns an OutputStream to which the response body can be

     * written.

     *

     * @return an OutputStream to which the response body can

     *         be written

     * @throws IOException if an I/O error occurs while

     *         writing the response body

     */

    public abstract OutputStream getBody() throws IOException;

    /**

     * Aborts the attempt to cache the response. If an IOException is

     * encountered while reading the response or writing to the cache,

     * the current cache store operation will be abandoned.

     */

    public abstract void abort();

}