JDK8/Java8源码在线阅读

/*
 * Copyright (c) 2003, 2006, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle 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.
 *
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package sun.nio;

import java.nio.ByteBuffer;
import java.io.IOException;

/** This is an interface to adapt existing APIs to use {@link java.nio.ByteBuffer
 *  <tt>ByteBuffers</tt>} as the underlying
 *  data format.  Only the initial producer and final consumer have to be changed.<p>
 *
 *  For example, the Zip/Jar code supports {@link java.io.InputStream <tt>InputStreams</tt>}.
 *  To make the Zip code use {@link java.nio.MappedByteBuffer <tt>MappedByteBuffers</tt>} as
 *  the underlying data structure, it can create a class of InputStream that wraps the ByteBuffer,
 *  and implements the ByteBuffered interface. A co-operating class several layers
 *  away can ask the InputStream if it is an instance of ByteBuffered, then
 *  call the {@link #getByteBuffer()} method.
 */
public interface ByteBuffered {

     /**
     * Returns the <tt>ByteBuffer</tt> behind this object, if this particular
     * instance has one. An implementation of <tt>getByteBuffer()</tt> is allowed
     * to return <tt>null</tt> for any reason.
     *

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