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| <pre><span class="source-line-no">001</span><span id="line-1">/*</span> |
| <span class="source-line-no">002</span><span id="line-2"> * Licensed to the Apache Software Foundation (ASF) under one</span> |
| <span class="source-line-no">003</span><span id="line-3"> * or more contributor license agreements. See the NOTICE file</span> |
| <span class="source-line-no">004</span><span id="line-4"> * distributed with this work for additional information</span> |
| <span class="source-line-no">005</span><span id="line-5"> * regarding copyright ownership. The ASF licenses this file</span> |
| <span class="source-line-no">006</span><span id="line-6"> * to you under the Apache License, Version 2.0 (the</span> |
| <span class="source-line-no">007</span><span id="line-7"> * "License"); you may not use this file except in compliance</span> |
| <span class="source-line-no">008</span><span id="line-8"> * with the License. You may obtain a copy of the License at</span> |
| <span class="source-line-no">009</span><span id="line-9"> *</span> |
| <span class="source-line-no">010</span><span id="line-10"> * http://www.apache.org/licenses/LICENSE-2.0</span> |
| <span class="source-line-no">011</span><span id="line-11"> *</span> |
| <span class="source-line-no">012</span><span id="line-12"> * Unless required by applicable law or agreed to in writing, software</span> |
| <span class="source-line-no">013</span><span id="line-13"> * distributed under the License is distributed on an "AS IS" BASIS,</span> |
| <span class="source-line-no">014</span><span id="line-14"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span> |
| <span class="source-line-no">015</span><span id="line-15"> * See the License for the specific language governing permissions and</span> |
| <span class="source-line-no">016</span><span id="line-16"> * limitations under the License.</span> |
| <span class="source-line-no">017</span><span id="line-17"> */</span> |
| <span class="source-line-no">018</span><span id="line-18">package org.apache.hadoop.hbase.io;</span> |
| <span class="source-line-no">019</span><span id="line-19"></span> |
| <span class="source-line-no">020</span><span id="line-20">import java.io.IOException;</span> |
| <span class="source-line-no">021</span><span id="line-21">import java.nio.ByteBuffer;</span> |
| <span class="source-line-no">022</span><span id="line-22">import org.apache.yetus.audience.InterfaceAudience;</span> |
| <span class="source-line-no">023</span><span id="line-23"></span> |
| <span class="source-line-no">024</span><span id="line-24">/**</span> |
| <span class="source-line-no">025</span><span id="line-25"> * This interface marks a class to support writing ByteBuffers into it.</span> |
| <span class="source-line-no">026</span><span id="line-26"> * @see ByteArrayOutputStream</span> |
| <span class="source-line-no">027</span><span id="line-27"> * @see ByteBufferOutputStream</span> |
| <span class="source-line-no">028</span><span id="line-28"> */</span> |
| <span class="source-line-no">029</span><span id="line-29">@InterfaceAudience.Private</span> |
| <span class="source-line-no">030</span><span id="line-30">public interface ByteBufferWriter {</span> |
| <span class="source-line-no">031</span><span id="line-31"></span> |
| <span class="source-line-no">032</span><span id="line-32"> /**</span> |
| <span class="source-line-no">033</span><span id="line-33"> * Writes <code>len</code> bytes from the specified ByteBuffer starting at offset <code>off</code></span> |
| <span class="source-line-no">034</span><span id="line-34"> * @param b the data.</span> |
| <span class="source-line-no">035</span><span id="line-35"> * @param off the start offset in the data.</span> |
| <span class="source-line-no">036</span><span id="line-36"> * @param len the number of bytes to write.</span> |
| <span class="source-line-no">037</span><span id="line-37"> * @exception IOException if an I/O error occurs.</span> |
| <span class="source-line-no">038</span><span id="line-38"> */</span> |
| <span class="source-line-no">039</span><span id="line-39"> void write(ByteBuffer b, int off, int len) throws IOException;</span> |
| <span class="source-line-no">040</span><span id="line-40"></span> |
| <span class="source-line-no">041</span><span id="line-41"> /**</span> |
| <span class="source-line-no">042</span><span id="line-42"> * Writes an <code>int</code> to the underlying output stream as four bytes, high byte first.</span> |
| <span class="source-line-no">043</span><span id="line-43"> * @param i the <code>int</code> to write</span> |
| <span class="source-line-no">044</span><span id="line-44"> * @throws IOException if an I/O error occurs.</span> |
| <span class="source-line-no">045</span><span id="line-45"> */</span> |
| <span class="source-line-no">046</span><span id="line-46"> // This is pure performance oriented API been added here. It has nothing to do with</span> |
| <span class="source-line-no">047</span><span id="line-47"> // ByteBuffer and so not fully belong to here. This allows an int to be written at one go instead</span> |
| <span class="source-line-no">048</span><span id="line-48"> // of 4 (4 bytes one by one).</span> |
| <span class="source-line-no">049</span><span id="line-49"> // TODO remove it from here?</span> |
| <span class="source-line-no">050</span><span id="line-50"> void writeInt(int i) throws IOException;</span> |
| <span class="source-line-no">051</span><span id="line-51">}</span> |
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| </pre> |
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