Google Git
Sign in
apache / hadoop-site / 952d547359cafef280f0a0324055741b2ed55be1 / . / content / docs / r3.3.1 / hadoop-mapreduce-client / hadoop-mapreduce-client-nativetask / apidocs / org / apache / hadoop / mapred / nativetask / serde / LongWritableSerializer.html
blob: e1689003bdac5a2f5f3690770b01c7a79c70eaf8 [file] [log] [blame]
<!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 (1.8.0_292) on Tue Jun 15 06:15:28 GMT 2021 -->
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>LongWritableSerializer (Apache Hadoop MapReduce NativeTask 3.3.1 API)</title>
<meta name="date" content="2021-06-15">
<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="LongWritableSerializer (Apache Hadoop MapReduce NativeTask 3.3.1 API)";
}
}
catch(err) {
}
//-->
var methods = {"i0":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/LongWritableSerializer.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/hadoop/mapred/nativetask/serde/KVSerializer.html" title="class in org.apache.hadoop.mapred.nativetask.serde"><span class="typeNameLink">Prev&nbsp;Class</span></a></li>
<li><a href="../../../../../../org/apache/hadoop/mapred/nativetask/serde/NativeSerialization.html" title="class in org.apache.hadoop.mapred.nativetask.serde"><span class="typeNameLink">Next&nbsp;Class</span></a></li>
</ul>
<ul class="navList">
<li><a href="../../../../../../index.html?org/apache/hadoop/mapred/nativetask/serde/LongWritableSerializer.html" target="_top">Frames</a></li>
<li><a href="LongWritableSerializer.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><a href="#constructor.summary">Constr</a>&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><a href="#constructor.detail">Constr</a>&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.hadoop.mapred.nativetask.serde</div>
<h2 title="Class LongWritableSerializer" class="title">Class LongWritableSerializer</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><a href="../../../../../../org/apache/hadoop/mapred/nativetask/serde/DefaultSerializer.html" title="class in org.apache.hadoop.mapred.nativetask.serde">org.apache.hadoop.mapred.nativetask.serde.DefaultSerializer</a></li>
<li>
<ul class="inheritance">
<li>org.apache.hadoop.mapred.nativetask.serde.LongWritableSerializer</li>
</ul>
</li>
</ul>
</li>
</ul>
<div class="description">
<ul class="blockList">
<li class="blockList">
<dl>
<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../../../org/apache/hadoop/mapred/nativetask/INativeComparable.html" title="interface in org.apache.hadoop.mapred.nativetask">INativeComparable</a>, <a href="../../../../../../org/apache/hadoop/mapred/nativetask/serde/INativeSerializer.html" title="interface in org.apache.hadoop.mapred.nativetask.serde">INativeSerializer</a>&lt;org.apache.hadoop.io.Writable&gt;</dd>
</dl>
<hr>
<br>
<pre>@InterfaceAudience.Private
public class <span class="typeNameLabel">LongWritableSerializer</span>
extends <a href="../../../../../../org/apache/hadoop/mapred/nativetask/serde/DefaultSerializer.html" title="class in org.apache.hadoop.mapred.nativetask.serde">DefaultSerializer</a>
implements <a href="../../../../../../org/apache/hadoop/mapred/nativetask/INativeComparable.html" title="interface in org.apache.hadoop.mapred.nativetask">INativeComparable</a></pre>
</li>
</ul>
</div>
<div class="summary">
<ul class="blockList">
<li class="blockList">
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
<ul class="blockList">
<li class="blockList"><a name="constructor.summary">
<!-- -->
</a>
<h3>Constructor Summary</h3>
<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Constructor Summary table, listing constructors, and an explanation">
<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colOne" scope="col">Constructor and Description</th>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapred/nativetask/serde/LongWritableSerializer.html#LongWritableSerializer--">LongWritableSerializer</a></span>()</code>&nbsp;</td>
</tr>
</table>
</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>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/mapred/nativetask/serde/LongWritableSerializer.html#getLength-org.apache.hadoop.io.Writable-">getLength</a></span>(org.apache.hadoop.io.Writable&nbsp;w)</code>
<div class="block">get length of data to be serialized.</div>
</td>
</tr>
</table>
<ul class="blockList">
<li class="blockList"><a name="methods.inherited.from.class.org.apache.hadoop.mapred.nativetask.serde.DefaultSerializer">
<!-- -->
</a>
<h3>Methods inherited from class&nbsp;org.apache.hadoop.mapred.nativetask.serde.<a href="../../../../../../org/apache/hadoop/mapred/nativetask/serde/DefaultSerializer.html" title="class in org.apache.hadoop.mapred.nativetask.serde">DefaultSerializer</a></h3>
<code><a href="../../../../../../org/apache/hadoop/mapred/nativetask/serde/DefaultSerializer.html#deserialize-java.io.DataInput-int-org.apache.hadoop.io.Writable-">deserialize</a>, <a href="../../../../../../org/apache/hadoop/mapred/nativetask/serde/DefaultSerializer.html#serialize-org.apache.hadoop.io.Writable-java.io.DataOutput-">serialize</a></code></li>
</ul>
<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">
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<ul class="blockList">
<li class="blockList"><a name="constructor.detail">
<!-- -->
</a>
<h3>Constructor Detail</h3>
<a name="LongWritableSerializer--">
<!-- -->
</a>
<ul class="blockListLast">
<li class="blockList">
<h4>LongWritableSerializer</h4>
<pre>public&nbsp;LongWritableSerializer()</pre>
</li>
</ul>
</li>
</ul>
<!-- ============ METHOD DETAIL ========== -->
<ul class="blockList">
<li class="blockList"><a name="method.detail">
<!-- -->
</a>
<h3>Method Detail</h3>
<a name="getLength-org.apache.hadoop.io.Writable-">
<!-- -->
</a>
<ul class="blockListLast">
<li class="blockList">
<h4>getLength</h4>
<pre>public&nbsp;int&nbsp;getLength(org.apache.hadoop.io.Writable&nbsp;w)
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/hadoop/mapred/nativetask/serde/INativeSerializer.html#getLength-T-">INativeSerializer</a></code></span></div>
<div class="block">get length of data to be serialized. If the data length is already known (like IntWritable)
and could immediately be returned from this method, it is good chance to implement customized
NativeSerializer for efficiency</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../../org/apache/hadoop/mapred/nativetask/serde/INativeSerializer.html#getLength-T-">getLength</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../../../org/apache/hadoop/mapred/nativetask/serde/INativeSerializer.html" title="interface in org.apache.hadoop.mapred.nativetask.serde">INativeSerializer</a>&lt;org.apache.hadoop.io.Writable&gt;</code></dd>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../../../org/apache/hadoop/mapred/nativetask/serde/DefaultSerializer.html#getLength-org.apache.hadoop.io.Writable-">getLength</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/hadoop/mapred/nativetask/serde/DefaultSerializer.html" title="class in org.apache.hadoop.mapred.nativetask.serde">DefaultSerializer</a></code></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>
</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/LongWritableSerializer.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/hadoop/mapred/nativetask/serde/KVSerializer.html" title="class in org.apache.hadoop.mapred.nativetask.serde"><span class="typeNameLink">Prev&nbsp;Class</span></a></li>
<li><a href="../../../../../../org/apache/hadoop/mapred/nativetask/serde/NativeSerialization.html" title="class in org.apache.hadoop.mapred.nativetask.serde"><span class="typeNameLink">Next&nbsp;Class</span></a></li>
</ul>
<ul class="navList">
<li><a href="../../../../../../index.html?org/apache/hadoop/mapred/nativetask/serde/LongWritableSerializer.html" target="_top">Frames</a></li>
<li><a href="LongWritableSerializer.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><a href="#constructor.summary">Constr</a>&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><a href="#constructor.detail">Constr</a>&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; 2008&#x2013;2021 <a href="https://www.apache.org">Apache Software Foundation</a>. All rights reserved.</small></p>
</body>
</html>