cassandra-server

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">  <html lang="en"> <head>  <title>RandomAccessReader (apache-cassandra API)</title> <meta name="date" content="2014-09-07"> <link rel="stylesheet" type="text/css" href="../../../../../stylesheet.css" title="Style"> </head> <body> <script type="text/javascript"> </script> <noscript> <div>JavaScript is disabled on your browser.</div> </noscript>  <div class="topNav"><a name="navbar_top">  </a><a href="#skip-navbar_top" title="Skip navigation links"></a><a name="navbar_top_firstrow">  </a> <ul class="navList" title="Navigation"> <li><a href="../../../../../overview-summary.html">Overview</a></li> <li><a href="package-summary.html">Package</a></li> <li class="navBarCell1Rev">Class</li> <li><a href="class-use/RandomAccessReader.html">Use</a></li> <li><a href="package-tree.html">Tree</a></li> <li><a href="../../../../../deprecated-list.html">Deprecated</a></li> <li><a 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<li>Summary: </li> <li><a href="#nested_class_summary">Nested</a> | </li> <li><a href="#field_summary">Field</a> | </li> <li><a href="#constructor_summary">Constr</a> | </li> <li><a href="#method_summary">Method</a></li> </ul> <ul class="subNavList"> <li>Detail: </li> <li><a href="#field_detail">Field</a> | </li> <li><a href="#constructor_detail">Constr</a> | </li> <li><a href="#method_detail">Method</a></li> </ul> </div> <a name="skip-navbar_top">  </a></div>   <div class="header"> <div class="subTitle">org.apache.cassandra.io.util</div> <h2 title="Class RandomAccessReader" class="title">Class RandomAccessReader</h2> </div> <div class="contentContainer"> <ul class="inheritance"> <li>java.lang.Object</li> <li> <ul class="inheritance"> <li>java.io.RandomAccessFile</li> <li> <ul class="inheritance"> <li>org.apache.cassandra.io.util.RandomAccessReader</li> </ul> </li> </ul> </li> </ul> <div class="description"> <ul class="blockList"> <li class="blockList"> <dl> <dt>All Implemented Interfaces:</dt> <dd>java.io.Closeable, java.io.DataInput, java.io.DataOutput, java.lang.AutoCloseable, <a href="../../../../../org/apache/cassandra/io/util/FileDataInput.html" title="interface in org.apache.cassandra.io.util">FileDataInput</a></dd> </dl> <dl> <dt>Direct Known Subclasses:</dt> <dd><a href="../../../../../org/apache/cassandra/io/compress/CompressedRandomAccessReader.html" title="class in org.apache.cassandra.io.compress">CompressedRandomAccessReader</a>, <a href="../../../../../org/apache/cassandra/io/util/ThrottledReader.html" title="class in org.apache.cassandra.io.util">ThrottledReader</a></dd> </dl> <hr> <br> <pre>public class <span class="strong">RandomAccessReader</span> extends java.io.RandomAccessFile implements <a href="../../../../../org/apache/cassandra/io/util/FileDataInput.html" title="interface in org.apache.cassandra.io.util">FileDataInput</a></pre> </li> </ul> </div> <div class="summary"> <ul class="blockList"> <li class="blockList">  <ul class="blockList"> <li class="blockList"><a name="nested_class_summary">  </a> <h3>Nested Class Summary</h3> <table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Nested Class Summary table, listing nested classes, and an explanation"> <caption><span>Nested Classes</span><span class="tabEnd"> </span></caption> <tr> <th class="colFirst" scope="col">Modifier and Type</th> <th class="colLast" scope="col">Class and Description</th> </tr> <tr class="altColor"> <td class="colFirst"><code>protected static class </code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.BufferedRandomAccessFileMark.html" title="class in org.apache.cassandra.io.util">RandomAccessReader.BufferedRandomAccessFileMark</a></strong></code> <div class="block">Class to hold a mark to the position of the file</div> </td> </tr> </table> </li> </ul>  <ul class="blockList"> <li class="blockList"><a name="field_summary">  </a> <h3>Field Summary</h3> <table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation"> <caption><span>Fields</span><span class="tabEnd"> </span></caption> <tr> <th class="colFirst" scope="col">Modifier and Type</th> <th class="colLast" scope="col">Field and Description</th> </tr> <tr class="altColor"> <td class="colFirst"><code>protected byte[]</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#buffer">buffer</a></strong></code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>protected long</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#bufferOffset">bufferOffset</a></strong></code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>static long</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#CACHE_FLUSH_INTERVAL_IN_BYTES">CACHE_FLUSH_INTERVAL_IN_BYTES</a></strong></code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>protected java.nio.channels.FileChannel</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#channel">channel</a></strong></code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>protected long</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#current">current</a></strong></code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>static int</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#DEFAULT_BUFFER_SIZE">DEFAULT_BUFFER_SIZE</a></strong></code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>protected long</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#markedPointer">markedPointer</a></strong></code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>protected <a href="../../../../../org/apache/cassandra/io/util/PoolingSegmentedFile.html" title="class in org.apache.cassandra.io.util">PoolingSegmentedFile</a></code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#owner">owner</a></strong></code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>protected int</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#validBufferBytes">validBufferBytes</a></strong></code> </td> </tr> </table> </li> </ul>  <ul class="blockList"> <li class="blockList"><a name="constructor_summary">  </a> <h3>Constructor Summary</h3> <table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation"> <caption><span>Constructors</span><span class="tabEnd"> </span></caption> <tr> <th class="colFirst" scope="col">Modifier</th> <th class="colLast" scope="col">Constructor and Description</th> </tr> <tr class="altColor"> <td class="colFirst"><code>protected </code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#RandomAccessReader(java.io.File,%20int,%20org.apache.cassandra.io.util.PoolingSegmentedFile)">RandomAccessReader</a></strong>(java.io.File file, int bufferSize, <a href="../../../../../org/apache/cassandra/io/util/PoolingSegmentedFile.html" title="class in org.apache.cassandra.io.util">PoolingSegmentedFile</a> owner)</code> </td> </tr> </table> </li> </ul>  <ul class="blockList"> <li class="blockList"><a name="method_summary">  </a> <h3>Method Summary</h3> <table class="overviewSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> <caption><span>Methods</span><span class="tabEnd"> </span></caption> <tr> <th class="colFirst" scope="col">Modifier and Type</th> <th class="colLast" scope="col">Method and Description</th> </tr> <tr class="altColor"> <td class="colFirst"><code>protected int</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#bufferCursor()">bufferCursor</a></strong>()</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#bytesPastMark()">bytesPastMark</a></strong>()</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#bytesPastMark(org.apache.cassandra.io.util.FileMark)">bytesPastMark</a></strong>(<a href="../../../../../org/apache/cassandra/io/util/FileMark.html" title="interface in org.apache.cassandra.io.util">FileMark</a> mark)</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#bytesRemaining()">bytesRemaining</a></strong>()</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>void</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#close()">close</a></strong>()</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>void</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#deallocate()">deallocate</a></strong>()</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#getFilePointer()">getFilePointer</a></strong>()</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>java.lang.String</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#getPath()">getPath</a></strong>()</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#getPosition()">getPosition</a></strong>()</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#getTotalBufferSize()">getTotalBufferSize</a></strong>()</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>boolean</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#isEOF()">isEOF</a></strong>()</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>long</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#length()">length</a></strong>()</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code><a href="../../../../../org/apache/cassandra/io/util/FileMark.html" title="interface in org.apache.cassandra.io.util">FileMark</a></code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#mark()">mark</a></strong>()</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>static <a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html" title="class in org.apache.cassandra.io.util">RandomAccessReader</a></code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#open(java.io.File)">open</a></strong>(java.io.File file)</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>static <a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html" title="class in org.apache.cassandra.io.util">RandomAccessReader</a></code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#open(java.io.File,%20org.apache.cassandra.io.util.PoolingSegmentedFile)">open</a></strong>(java.io.File file, <a href="../../../../../org/apache/cassandra/io/util/PoolingSegmentedFile.html" title="class in org.apache.cassandra.io.util">PoolingSegmentedFile</a> owner)</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#read()">read</a></strong>()</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#read(byte[])">read</a></strong>(byte[] buffer)</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>int</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#read(byte[],%20int,%20int)">read</a></strong>(byte[] buff, int offset, int length)</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>java.nio.ByteBuffer</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#readBytes(int)">readBytes</a></strong>(int length)</code> <div class="block">Read length bytes from current file position</div> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>protected void</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#reBuffer()">reBuffer</a></strong>()</code> <div class="block">Read data from file starting from current currentOffset to populate buffer.</div> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>void</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#reset()">reset</a></strong>()</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>void</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#reset(org.apache.cassandra.io.util.FileMark)">reset</a></strong>(<a href="../../../../../org/apache/cassandra/io/util/FileMark.html" title="interface in org.apache.cassandra.io.util">FileMark</a> mark)</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>protected void</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#resetBuffer()">resetBuffer</a></strong>()</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>void</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#seek(long)">seek</a></strong>(long newPosition)</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>java.lang.String</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#toString()">toString</a></strong>()</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>void</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#write(byte[])">write</a></strong>(byte[] buffer)</code> </td> </tr> <tr class="altColor"> <td class="colFirst"><code>void</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#write(byte[],%20int,%20int)">write</a></strong>(byte[] buffer, int offset, int length)</code> </td> </tr> <tr class="rowColor"> <td class="colFirst"><code>void</code></td> <td class="colLast"><code><strong><a href="../../../../../org/apache/cassandra/io/util/RandomAccessReader.html#write(int)">write</a></strong>(int value)</code> </td> </tr> </table> <ul class="blockList"> <li class="blockList"><a name="methods_inherited_from_class_java.io.RandomAccessFile">  </a> <h3>Methods inherited from class java.io.RandomAccessFile</h3> <code>getChannel, getFD, readBoolean, readByte, readChar, readDouble, readFloat, readFully, readFully, readInt, readLine, readLong, readShort, 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