<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<!-- NewPage -->
<html lang="en">
<head>
<!-- Generated by javadoc -->
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>HadoopShimsPre2_3 (ORC Shims 1.9.0 API)</title>
<link rel="stylesheet" type="text/css" href="../../../../stylesheet.css" title="Style">
<script type="text/javascript" src="../../../../script.js"></script>
</head>
<body>
<script type="text/javascript"><!--
    try {
        if (location.href.indexOf('is-external=true') == -1) {
            parent.document.title="HadoopShimsPre2_3 (ORC Shims 1.9.0 API)";
        }
    }
    catch(err) {
    }
//-->
var methods = {"i0":10,"i1":10,"i2":10,"i3":10};
var tabs = {65535:["t0","All Methods"],2:["t2","Instance Methods"],8:["t4","Concrete Methods"]};
var altColor = "altColor";
var rowColor = "rowColor";
var tableTab = "tableTab";
var activeTableTab = "activeTableTab";
</script>
<noscript>
<div>JavaScript is disabled on your browser.</div>
</noscript>
<!-- ========= START OF TOP NAVBAR ======= -->
<div class="topNav"><a name="navbar.top">
<!--   -->
</a>
<div class="skipNav"><a href="#skip.navbar.top" title="Skip navigation links">Skip navigation links</a></div>
<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/HadoopShimsPre2_3.html">Use</a></li>
<li><a href="package-tree.html">Tree</a></li>
<li><a href="../../../../deprecated-list.html">Deprecated</a></li>
<li><a href="../../../../index-all.html">Index</a></li>
<li><a href="../../../../help-doc.html">Help</a></li>
</ul>
</div>
<div class="subNav">
<ul class="navList">
<li><a href="../../../../org/apache/orc/impl/HadoopShimsCurrent.html" title="class in org.apache.orc.impl"><span class="typeNameLink">Prev&nbsp;Class</span></a></li>
<li><a href="../../../../org/apache/orc/impl/HadoopShimsPre2_6.html" title="class in org.apache.orc.impl"><span class="typeNameLink">Next&nbsp;Class</span></a></li>
</ul>
<ul class="navList">
<li><a href="../../../../index.html?org/apache/orc/impl/HadoopShimsPre2_3.html" target="_top">Frames</a></li>
<li><a href="HadoopShimsPre2_3.html" target="_top">No&nbsp;Frames</a></li>
</ul>
<ul class="navList" id="allclasses_navbar_top">
<li><a href="../../../../allclasses-noframe.html">All&nbsp;Classes</a></li>
</ul>
<div>
<script type="text/javascript"><!--
  allClassesLink = document.getElementById("allclasses_navbar_top");
  if(window==top) {
    allClassesLink.style.display = "block";
  }
  else {
    allClassesLink.style.display = "none";
  }
  //-->
</script>
</div>
<div>
<ul class="subNavList">
<li>Summary:&nbsp;</li>
<li>Nested&nbsp;|&nbsp;</li>
<li>Field&nbsp;|&nbsp;</li>
<li>Constr&nbsp;|&nbsp;</li>
<li><a href="#method.summary">Method</a></li>
</ul>
<ul class="subNavList">
<li>Detail:&nbsp;</li>
<li>Field&nbsp;|&nbsp;</li>
<li>Constr&nbsp;|&nbsp;</li>
<li><a href="#method.detail">Method</a></li>
</ul>
</div>
<a name="skip.navbar.top">
<!--   -->
</a></div>
<!-- ========= END OF TOP NAVBAR ========= -->
<!-- ======== START OF CLASS DATA ======== -->
<div class="header">
<div class="subTitle">org.apache.orc.impl</div>
<h2 title="Class HadoopShimsPre2_3" class="title">Class HadoopShimsPre2_3</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li>
<li>
<ul class="inheritance">
<li>org.apache.orc.impl.HadoopShimsPre2_3</li>
</ul>
</li>
</ul>
<div class="description">
<ul class="blockList">
<li class="blockList">
<dl>
<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../org/apache/orc/impl/HadoopShims.html" title="interface in org.apache.orc.impl">HadoopShims</a></dd>
</dl>
<hr>
<br>
<pre>public class <span class="typeNameLabel">HadoopShimsPre2_3</span>
extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
implements <a href="../../../../org/apache/orc/impl/HadoopShims.html" title="interface in org.apache.orc.impl">HadoopShims</a></pre>
<div class="block">Shims for versions of Hadoop up to and including 2.2.x</div>
</li>
</ul>
</div>
<div class="summary">
<ul class="blockList">
<li class="blockList">
<!-- ======== NESTED CLASS SUMMARY ======== -->
<ul class="blockList">
<li class="blockList"><a name="nested.class.summary">
<!--   -->
</a>
<h3>Nested Class Summary</h3>
<ul class="blockList">
<li class="blockList"><a name="nested.classes.inherited.from.class.org.apache.orc.impl.HadoopShims">
<!--   -->
</a>
<h3>Nested classes/interfaces inherited from interface&nbsp;org.apache.orc.impl.<a href="../../../../org/apache/orc/impl/HadoopShims.html" title="interface in org.apache.orc.impl">HadoopShims</a></h3>
<code><a href="../../../../org/apache/orc/impl/HadoopShims.ByteBufferPoolShim.html" title="interface in org.apache.orc.impl">HadoopShims.ByteBufferPoolShim</a>, <a href="../../../../org/apache/orc/impl/HadoopShims.DirectCompressionType.html" title="enum in org.apache.orc.impl">HadoopShims.DirectCompressionType</a>, <a href="../../../../org/apache/orc/impl/HadoopShims.DirectDecompressor.html" title="interface in org.apache.orc.impl">HadoopShims.DirectDecompressor</a>, <a href="../../../../org/apache/orc/impl/HadoopShims.KeyMetadata.html" title="class in org.apache.orc.impl">HadoopShims.KeyMetadata</a>, <a href="../../../../org/apache/orc/impl/HadoopShims.KeyProviderKind.html" title="enum in org.apache.orc.impl">HadoopShims.KeyProviderKind</a>, <a href="../../../../org/apache/orc/impl/HadoopShims.ZeroCopyReaderShim.html" title="interface in org.apache.orc.impl">HadoopShims.ZeroCopyReaderShim</a></code></li>
</ul>
</li>
</ul>
<!-- ========== METHOD SUMMARY =========== -->
<ul class="blockList">
<li class="blockList"><a name="method.summary">
<!--   -->
</a>
<h3>Method Summary</h3>
<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation">
<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/orc/impl/HadoopShimsPre2_3.html#endVariableLengthBlock-java.io.OutputStream-">endVariableLengthBlock</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io">OutputStream</a>&nbsp;output)</code>
<div class="block">End the OutputStream's current block at the current location.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/orc/impl/HadoopShims.DirectDecompressor.html" title="interface in org.apache.orc.impl">HadoopShims.DirectDecompressor</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/orc/impl/HadoopShimsPre2_3.html#getDirectDecompressor-org.apache.orc.impl.HadoopShims.DirectCompressionType-">getDirectDecompressor</a></span>(<a href="../../../../org/apache/orc/impl/HadoopShims.DirectCompressionType.html" title="enum in org.apache.orc.impl">HadoopShims.DirectCompressionType</a>&nbsp;codec)</code>
<div class="block">Get a direct decompressor codec, if it is available</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code><a href="../../../../org/apache/orc/impl/KeyProvider.html" title="interface in org.apache.orc.impl">KeyProvider</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/orc/impl/HadoopShimsPre2_3.html#getHadoopKeyProvider-org.apache.hadoop.conf.Configuration-java.util.Random-">getHadoopKeyProvider</a></span>(<a href="https://hadoop.apache.org/docs/r2.7.3/api/org/apache/hadoop/conf/Configuration.html?is-external=true" title="class or interface in org.apache.hadoop.conf">Configuration</a>&nbsp;conf,
                    <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Random.html?is-external=true" title="class or interface in java.util">Random</a>&nbsp;random)</code>
<div class="block">Create a Hadoop KeyProvider to get encryption keys.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="../../../../org/apache/orc/impl/HadoopShims.ZeroCopyReaderShim.html" title="interface in org.apache.orc.impl">HadoopShims.ZeroCopyReaderShim</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/orc/impl/HadoopShimsPre2_3.html#getZeroCopyReader-org.apache.hadoop.fs.FSDataInputStream-org.apache.orc.impl.HadoopShims.ByteBufferPoolShim-">getZeroCopyReader</a></span>(<a href="https://hadoop.apache.org/docs/r2.7.3/api/org/apache/hadoop/fs/FSDataInputStream.html?is-external=true" title="class or interface in org.apache.hadoop.fs">FSDataInputStream</a>&nbsp;in,
                 <a href="../../../../org/apache/orc/impl/HadoopShims.ByteBufferPoolShim.html" title="interface in org.apache.orc.impl">HadoopShims.ByteBufferPoolShim</a>&nbsp;pool)</code>
<div class="block">Provides an HDFS ZeroCopyReader shim.</div>
</td>
</tr>
</table>
<ul class="blockList">
<li class="blockList"><a name="methods.inherited.from.class.java.lang.Object">
<!--   -->
</a>
<h3>Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
<div class="details">
<ul class="blockList">
<li class="blockList">
<!-- ============ METHOD DETAIL ========== -->
<ul class="blockList">
<li class="blockList"><a name="method.detail">
<!--   -->
</a>
<h3>Method Detail</h3>
<a name="getDirectDecompressor-org.apache.orc.impl.HadoopShims.DirectCompressionType-">
<!--   -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getDirectDecompressor</h4>
<pre>public&nbsp;<a href="../../../../org/apache/orc/impl/HadoopShims.DirectDecompressor.html" title="interface in org.apache.orc.impl">HadoopShims.DirectDecompressor</a>&nbsp;getDirectDecompressor(<a href="../../../../org/apache/orc/impl/HadoopShims.DirectCompressionType.html" title="enum in org.apache.orc.impl">HadoopShims.DirectCompressionType</a>&nbsp;codec)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../org/apache/orc/impl/HadoopShims.html#getDirectDecompressor-org.apache.orc.impl.HadoopShims.DirectCompressionType-">HadoopShims</a></code></span></div>
<div class="block">Get a direct decompressor codec, if it is available</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../org/apache/orc/impl/HadoopShims.html#getDirectDecompressor-org.apache.orc.impl.HadoopShims.DirectCompressionType-">getDirectDecompressor</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../org/apache/orc/impl/HadoopShims.html" title="interface in org.apache.orc.impl">HadoopShims</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>codec</code> - the kind of decompressor that we need</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a direct decompressor or null, if it isn't available</dd>
</dl>
</li>
</ul>
<a name="getZeroCopyReader-org.apache.hadoop.fs.FSDataInputStream-org.apache.orc.impl.HadoopShims.ByteBufferPoolShim-">
<!--   -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getZeroCopyReader</h4>
<pre>public&nbsp;<a href="../../../../org/apache/orc/impl/HadoopShims.ZeroCopyReaderShim.html" title="interface in org.apache.orc.impl">HadoopShims.ZeroCopyReaderShim</a>&nbsp;getZeroCopyReader(<a href="https://hadoop.apache.org/docs/r2.7.3/api/org/apache/hadoop/fs/FSDataInputStream.html?is-external=true" title="class or interface in org.apache.hadoop.fs">FSDataInputStream</a>&nbsp;in,
                                                        <a href="../../../../org/apache/orc/impl/HadoopShims.ByteBufferPoolShim.html" title="interface in org.apache.orc.impl">HadoopShims.ByteBufferPoolShim</a>&nbsp;pool)
                                                 throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../org/apache/orc/impl/HadoopShims.html#getZeroCopyReader-org.apache.hadoop.fs.FSDataInputStream-org.apache.orc.impl.HadoopShims.ByteBufferPoolShim-">HadoopShims</a></code></span></div>
<div class="block">Provides an HDFS ZeroCopyReader shim.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../org/apache/orc/impl/HadoopShims.html#getZeroCopyReader-org.apache.hadoop.fs.FSDataInputStream-org.apache.orc.impl.HadoopShims.ByteBufferPoolShim-">getZeroCopyReader</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../org/apache/orc/impl/HadoopShims.html" title="interface in org.apache.orc.impl">HadoopShims</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>in</code> - FSDataInputStream to read from (where the cached/mmap buffers are
          tied to)</dd>
<dd><code>pool</code> - ByteBufferPoolShim to allocate fallback buffers with</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>returns null if not supported</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
</dl>
</li>
</ul>
<a name="endVariableLengthBlock-java.io.OutputStream-">
<!--   -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>endVariableLengthBlock</h4>
<pre>public&nbsp;boolean&nbsp;endVariableLengthBlock(<a href="https://docs.oracle.com/javase/8/docs/api/java/io/OutputStream.html?is-external=true" title="class or interface in java.io">OutputStream</a>&nbsp;output)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../org/apache/orc/impl/HadoopShims.html#endVariableLengthBlock-java.io.OutputStream-">HadoopShims</a></code></span></div>
<div class="block">End the OutputStream's current block at the current location.
 This is only available on HDFS on Hadoop &ge; 2.7, but will return false
 otherwise.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../org/apache/orc/impl/HadoopShims.html#endVariableLengthBlock-java.io.OutputStream-">endVariableLengthBlock</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../org/apache/orc/impl/HadoopShims.html" title="interface in org.apache.orc.impl">HadoopShims</a></code></dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>was a variable length block created?</dd>
</dl>
</li>
</ul>
<a name="getHadoopKeyProvider-org.apache.hadoop.conf.Configuration-java.util.Random-">
<!--   -->
</a>
<ul class="blockListLast">
<li class="blockList">
<h4>getHadoopKeyProvider</h4>
<pre>public&nbsp;<a href="../../../../org/apache/orc/impl/KeyProvider.html" title="interface in org.apache.orc.impl">KeyProvider</a>&nbsp;getHadoopKeyProvider(<a href="https://hadoop.apache.org/docs/r2.7.3/api/org/apache/hadoop/conf/Configuration.html?is-external=true" title="class or interface in org.apache.hadoop.conf">Configuration</a>&nbsp;conf,
                                        <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Random.html?is-external=true" title="class or interface in java.util">Random</a>&nbsp;random)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../org/apache/orc/impl/HadoopShims.html#getHadoopKeyProvider-org.apache.hadoop.conf.Configuration-java.util.Random-">HadoopShims</a></code></span></div>
<div class="block">Create a Hadoop KeyProvider to get encryption keys.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../org/apache/orc/impl/HadoopShims.html#getHadoopKeyProvider-org.apache.hadoop.conf.Configuration-java.util.Random-">getHadoopKeyProvider</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../org/apache/orc/impl/HadoopShims.html" title="interface in org.apache.orc.impl">HadoopShims</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>conf</code> - the configuration</dd>
<dd><code>random</code> - a secure random number generator</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>a key provider or null if none was provided</dd>
</dl>
</li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
</div>
<!-- ========= END OF CLASS DATA ========= -->
<!-- ======= START OF BOTTOM NAVBAR ====== -->
<div class="bottomNav"><a name="navbar.bottom">
<!--   -->
</a>
<div class="skipNav"><a href="#skip.navbar.bottom" title="Skip navigation links">Skip navigation links</a></div>
<a name="navbar.bottom.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/HadoopShimsPre2_3.html">Use</a></li>
<li><a href="package-tree.html">Tree</a></li>
<li><a href="../../../../deprecated-list.html">Deprecated</a></li>
<li><a href="../../../../index-all.html">Index</a></li>
<li><a href="../../../../help-doc.html">Help</a></li>
</ul>
</div>
<div class="subNav">
<ul class="navList">
<li><a href="../../../../org/apache/orc/impl/HadoopShimsCurrent.html" title="class in org.apache.orc.impl"><span class="typeNameLink">Prev&nbsp;Class</span></a></li>
<li><a href="../../../../org/apache/orc/impl/HadoopShimsPre2_6.html" title="class in org.apache.orc.impl"><span class="typeNameLink">Next&nbsp;Class</span></a></li>
</ul>
<ul class="navList">
<li><a href="../../../../index.html?org/apache/orc/impl/HadoopShimsPre2_3.html" target="_top">Frames</a></li>
<li><a href="HadoopShimsPre2_3.html" target="_top">No&nbsp;Frames</a></li>
</ul>
<ul class="navList" id="allclasses_navbar_bottom">
<li><a href="../../../../allclasses-noframe.html">All&nbsp;Classes</a></li>
</ul>
<div>
<script type="text/javascript"><!--
  allClassesLink = document.getElementById("allclasses_navbar_bottom");
  if(window==top) {
    allClassesLink.style.display = "block";
  }
  else {
    allClassesLink.style.display = "none";
  }
  //-->
</script>
</div>
<div>
<ul class="subNavList">
<li>Summary:&nbsp;</li>
<li>Nested&nbsp;|&nbsp;</li>
<li>Field&nbsp;|&nbsp;</li>
<li>Constr&nbsp;|&nbsp;</li>
<li><a href="#method.summary">Method</a></li>
</ul>
<ul class="subNavList">
<li>Detail:&nbsp;</li>
<li>Field&nbsp;|&nbsp;</li>
<li>Constr&nbsp;|&nbsp;</li>
<li><a href="#method.detail">Method</a></li>
</ul>
</div>
<a name="skip.navbar.bottom">
<!--   -->
</a></div>
<!-- ======== END OF BOTTOM NAVBAR ======= -->
<p class="legalCopy"><small>Copyright &#169; 2013&#x2013;2023 <a href="https://www.apache.org/">The Apache Software Foundation</a>. All rights reserved.</small></p>
</body>
</html>
