Google Git
Sign in
apache / logging-site / a4f88a44f9ece0268ea2d36ba57a00f2b881cabc / . / content / log4j / 2.13.1 / log4j-core / apidocs / org / apache / logging / log4j / core / Appender.html
blob: 8f42118df8ff52d2828edeb022264404b0853be1 [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_144) on Tue Feb 25 21:03:09 MST 2020 -->
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Appender (Apache Log4j Core 2.13.1 API)</title>
<meta name="date" content="2020-02-25">
<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="Appender (Apache Log4j Core 2.13.1 API)";
}
}
catch(err) {
}
//-->
var methods = {"i0":6,"i1":6,"i2":6,"i3":6,"i4":6,"i5":6};
var tabs = {65535:["t0","All Methods"],2:["t2","Instance Methods"],4:["t3","Abstract 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/Appender.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/logging/log4j/core/AbstractLogEvent.html" title="class in org.apache.logging.log4j.core"><span class="typeNameLink">Prev&nbsp;Class</span></a></li>
<li><a href="../../../../../org/apache/logging/log4j/core/ContextDataInjector.html" title="interface in org.apache.logging.log4j.core"><span class="typeNameLink">Next&nbsp;Class</span></a></li>
</ul>
<ul class="navList">
<li><a href="../../../../../index.html?org/apache/logging/log4j/core/Appender.html" target="_top">Frames</a></li>
<li><a href="Appender.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><a href="#field.summary">Field</a>&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><a href="#field.detail">Field</a>&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.logging.log4j.core</div>
<h2 title="Interface Appender" class="title">Interface Appender</h2>
</div>
<div class="contentContainer">
<div class="description">
<ul class="blockList">
<li class="blockList">
<dl>
<dt>All Superinterfaces:</dt>
<dd><a href="../../../../../org/apache/logging/log4j/core/LifeCycle.html" title="interface in org.apache.logging.log4j.core">LifeCycle</a></dd>
</dl>
<dl>
<dt>All Known Implementing Classes:</dt>
<dd><a href="../../../../../org/apache/logging/log4j/core/appender/AbstractAppender.html" title="class in org.apache.logging.log4j.core.appender">AbstractAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/db/AbstractDatabaseAppender.html" title="class in org.apache.logging.log4j.core.appender.db">AbstractDatabaseAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/AbstractFileAppender.html" title="class in org.apache.logging.log4j.core.appender">AbstractFileAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/AbstractOutputStreamAppender.html" title="class in org.apache.logging.log4j.core.appender">AbstractOutputStreamAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/AbstractWriterAppender.html" title="class in org.apache.logging.log4j.core.appender">AbstractWriterAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/AsyncAppender.html" title="class in org.apache.logging.log4j.core.appender">AsyncAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/ConsoleAppender.html" title="class in org.apache.logging.log4j.core.appender">ConsoleAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/CountingNoOpAppender.html" title="class in org.apache.logging.log4j.core.appender">CountingNoOpAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/FailoverAppender.html" title="class in org.apache.logging.log4j.core.appender">FailoverAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/FileAppender.html" title="class in org.apache.logging.log4j.core.appender">FileAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/HttpAppender.html" title="class in org.apache.logging.log4j.core.appender">HttpAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/db/jdbc/JdbcAppender.html" title="class in org.apache.logging.log4j.core.appender.db.jdbc">JdbcAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/mom/jeromq/JeroMqAppender.html" title="class in org.apache.logging.log4j.core.appender.mom.jeromq">JeroMqAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/mom/JmsAppender.html" title="class in org.apache.logging.log4j.core.appender.mom">JmsAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/mom/kafka/KafkaAppender.html" title="class in org.apache.logging.log4j.core.appender.mom.kafka">KafkaAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/MemoryMappedFileAppender.html" title="class in org.apache.logging.log4j.core.appender">MemoryMappedFileAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/nosql/NoSqlAppender.html" title="class in org.apache.logging.log4j.core.appender.nosql">NoSqlAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/NullAppender.html" title="class in org.apache.logging.log4j.core.appender">NullAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/OutputStreamAppender.html" title="class in org.apache.logging.log4j.core.appender">OutputStreamAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/RandomAccessFileAppender.html" title="class in org.apache.logging.log4j.core.appender">RandomAccessFileAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/rewrite/RewriteAppender.html" title="class in org.apache.logging.log4j.core.appender.rewrite">RewriteAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/RollingFileAppender.html" title="class in org.apache.logging.log4j.core.appender">RollingFileAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/RollingRandomAccessFileAppender.html" title="class in org.apache.logging.log4j.core.appender">RollingRandomAccessFileAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/routing/RoutingAppender.html" title="class in org.apache.logging.log4j.core.appender.routing">RoutingAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/ScriptAppenderSelector.html" title="class in org.apache.logging.log4j.core.appender">ScriptAppenderSelector</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/SmtpAppender.html" title="class in org.apache.logging.log4j.core.appender">SmtpAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/SocketAppender.html" title="class in org.apache.logging.log4j.core.appender">SocketAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/SyslogAppender.html" title="class in org.apache.logging.log4j.core.appender">SyslogAppender</a>, <a href="../../../../../org/apache/logging/log4j/core/appender/WriterAppender.html" title="class in org.apache.logging.log4j.core.appender">WriterAppender</a></dd>
</dl>
<hr>
<br>
<pre>public interface <a href="../../../../../src-html/org/apache/logging/log4j/core/Appender.html#line.37">Appender</a>
extends <a href="../../../../../org/apache/logging/log4j/core/LifeCycle.html" title="interface in org.apache.logging.log4j.core">LifeCycle</a></pre>
<div class="block">Appends <a href="../../../../../org/apache/logging/log4j/core/LogEvent.html" title="interface in org.apache.logging.log4j.core"><code>LogEvent</code></a>s. An Appender can contain a <a href="../../../../../org/apache/logging/log4j/core/Layout.html" title="interface in org.apache.logging.log4j.core"><code>Layout</code></a> if applicable as well
as an <a href="../../../../../org/apache/logging/log4j/core/ErrorHandler.html" title="interface in org.apache.logging.log4j.core"><code>ErrorHandler</code></a>. Typical Appender implementations coordinate with an
implementation of <a href="../../../../../org/apache/logging/log4j/core/appender/AbstractManager.html" title="class in org.apache.logging.log4j.core.appender"><code>AbstractManager</code></a> to handle external resources
such as streams, connections, and other shared state. As Appenders are plugins, concrete implementations need to
be annotated with <a href="../../../../../org/apache/logging/log4j/core/config/plugins/Plugin.html" title="annotation in org.apache.logging.log4j.core.config.plugins"><code>Plugin</code></a> and need to provide a static
factory method annotated with <a href="../../../../../org/apache/logging/log4j/core/config/plugins/PluginFactory.html" title="annotation in org.apache.logging.log4j.core.config.plugins"><code>PluginFactory</code></a>.
<p>Most core plugins are written using a related Manager class that handle the actual task of serializing a
<a href="../../../../../org/apache/logging/log4j/core/LogEvent.html" title="interface in org.apache.logging.log4j.core"><code>LogEvent</code></a> to some output location. For instance, many Appenders can take
advantage of the <a href="../../../../../org/apache/logging/log4j/core/appender/OutputStreamManager.html" title="class in org.apache.logging.log4j.core.appender"><code>OutputStreamManager</code></a> class.</p>
<p>It is recommended that Appenders don't do any heavy lifting since there can be many instances of the class
being used at any given time. When resources require locking (e.g., through <a href="https://docs.oracle.com/javase/8/docs/api/java/nio/channels/FileLock.html?is-external=true" title="class or interface in java.nio.channels"><code>FileLock</code></a>),
it is important to isolate synchronized code to prevent concurrency issues.</p></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.logging.log4j.core.LifeCycle">
<!-- -->
</a>
<h3>Nested classes/interfaces inherited from interface&nbsp;org.apache.logging.log4j.core.<a href="../../../../../org/apache/logging/log4j/core/LifeCycle.html" title="interface in org.apache.logging.log4j.core">LifeCycle</a></h3>
<code><a href="../../../../../org/apache/logging/log4j/core/LifeCycle.State.html" title="enum in org.apache.logging.log4j.core">LifeCycle.State</a></code></li>
</ul>
</li>
</ul>
<!-- =========== FIELD SUMMARY =========== -->
<ul class="blockList">
<li class="blockList"><a name="field.summary">
<!-- -->
</a>
<h3>Field Summary</h3>
<table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Field Summary table, listing fields, and an explanation">
<caption><span>Fields</span><span class="tabEnd">&nbsp;</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>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/logging/log4j/core/Appender.html#ELEMENT_TYPE">ELEMENT_TYPE</a></span></code>
<div class="block">Main <a href="../../../../../org/apache/logging/log4j/core/config/plugins/Plugin.html#elementType--">plugin element type</a> for
Appender plugins.</div>
</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="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract 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>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/logging/log4j/core/Appender.html#append-org.apache.logging.log4j.core.LogEvent-">append</a></span>(<a href="../../../../../org/apache/logging/log4j/core/LogEvent.html" title="interface in org.apache.logging.log4j.core">LogEvent</a>&nbsp;event)</code>
<div class="block">Logs a LogEvent using whatever logic this Appender wishes to use.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/logging/log4j/core/ErrorHandler.html" title="interface in org.apache.logging.log4j.core">ErrorHandler</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/logging/log4j/core/Appender.html#getHandler--">getHandler</a></span>()</code>
<div class="block">Gets the <a href="../../../../../org/apache/logging/log4j/core/ErrorHandler.html" title="interface in org.apache.logging.log4j.core"><code>ErrorHandler</code></a> used for handling exceptions.</div>
</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/logging/log4j/core/Layout.html" title="interface in org.apache.logging.log4j.core">Layout</a>&lt;? extends <a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/logging/log4j/core/Appender.html#getLayout--">getLayout</a></span>()</code>
<div class="block">Returns the Layout used by this Appender if applicable.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/logging/log4j/core/Appender.html#getName--">getName</a></span>()</code>
<div class="block">Gets the name of this Appender.</div>
</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/logging/log4j/core/Appender.html#ignoreExceptions--">ignoreExceptions</a></span>()</code>
<div class="block">Some Appenders need to propagate exceptions back to the application.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/logging/log4j/core/Appender.html#setHandler-org.apache.logging.log4j.core.ErrorHandler-">setHandler</a></span>(<a href="../../../../../org/apache/logging/log4j/core/ErrorHandler.html" title="interface in org.apache.logging.log4j.core">ErrorHandler</a>&nbsp;handler)</code>
<div class="block">Sets the <a href="../../../../../org/apache/logging/log4j/core/ErrorHandler.html" title="interface in org.apache.logging.log4j.core"><code>ErrorHandler</code></a> used for handling exceptions.</div>
</td>
</tr>
</table>
<ul class="blockList">
<li class="blockList"><a name="methods.inherited.from.class.org.apache.logging.log4j.core.LifeCycle">
<!-- -->
</a>
<h3>Methods inherited from interface&nbsp;org.apache.logging.log4j.core.<a href="../../../../../org/apache/logging/log4j/core/LifeCycle.html" title="interface in org.apache.logging.log4j.core">LifeCycle</a></h3>
<code><a href="../../../../../org/apache/logging/log4j/core/LifeCycle.html#getState--">getState</a>, <a href="../../../../../org/apache/logging/log4j/core/LifeCycle.html#initialize--">initialize</a>, <a href="../../../../../org/apache/logging/log4j/core/LifeCycle.html#isStarted--">isStarted</a>, <a href="../../../../../org/apache/logging/log4j/core/LifeCycle.html#isStopped--">isStopped</a>, <a href="../../../../../org/apache/logging/log4j/core/LifeCycle.html#start--">start</a>, <a href="../../../../../org/apache/logging/log4j/core/LifeCycle.html#stop--">stop</a></code></li>
</ul>
</li>
</ul>
</li>
</ul>
</div>
<div class="details">
<ul class="blockList">
<li class="blockList">
<!-- ============ FIELD DETAIL =========== -->
<ul class="blockList">
<li class="blockList"><a name="field.detail">
<!-- -->
</a>
<h3>Field Detail</h3>
<a name="ELEMENT_TYPE">
<!-- -->
</a>
<ul class="blockListLast">
<li class="blockList">
<h4>ELEMENT_TYPE</h4>
<pre>static final&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> <a href="../../../../../src-html/org/apache/logging/log4j/core/Appender.html#line.45">ELEMENT_TYPE</a></pre>
<div class="block">Main <a href="../../../../../org/apache/logging/log4j/core/config/plugins/Plugin.html#elementType--">plugin element type</a> for
Appender plugins.</div>
<dl>
<dt><span class="simpleTagLabel">Since:</span></dt>
<dd>2.6</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../constant-values.html#org.apache.logging.log4j.core.Appender.ELEMENT_TYPE">Constant Field Values</a></dd>
</dl>
</li>
</ul>
</li>
</ul>
<!-- ============ METHOD DETAIL ========== -->
<ul class="blockList">
<li class="blockList"><a name="method.detail">
<!-- -->
</a>
<h3>Method Detail</h3>
<a name="append-org.apache.logging.log4j.core.LogEvent-">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>append</h4>
<pre>void&nbsp;<a href="../../../../../src-html/org/apache/logging/log4j/core/Appender.html#line.54">append</a>(<a href="../../../../../org/apache/logging/log4j/core/LogEvent.html" title="interface in org.apache.logging.log4j.core">LogEvent</a>&nbsp;event)</pre>
<div class="block">Logs a LogEvent using whatever logic this Appender wishes to use. It is typically recommended to use a
bridge pattern not only for the benefits from decoupling an Appender from its implementation, but it is also
handy for sharing resources which may require some form of locking.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>event</code> - The LogEvent.</dd>
</dl>
</li>
</ul>
<a name="getName--">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getName</h4>
<pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;<a href="../../../../../src-html/org/apache/logging/log4j/core/Appender.html#line.62">getName</a>()</pre>
<div class="block">Gets the name of this Appender.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>name, may be null.</dd>
</dl>
</li>
</ul>
<a name="getLayout--">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getLayout</h4>
<pre><a href="../../../../../org/apache/logging/log4j/core/Layout.html" title="interface in org.apache.logging.log4j.core">Layout</a>&lt;? extends <a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a>&gt;&nbsp;<a href="../../../../../src-html/org/apache/logging/log4j/core/Appender.html#line.69">getLayout</a>()</pre>
<div class="block">Returns the Layout used by this Appender if applicable.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the Layout for this Appender or <code>null</code> if none is configured.</dd>
</dl>
</li>
</ul>
<a name="ignoreExceptions--">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>ignoreExceptions</h4>
<pre>boolean&nbsp;<a href="../../../../../src-html/org/apache/logging/log4j/core/Appender.html#line.77">ignoreExceptions</a>()</pre>
<div class="block">Some Appenders need to propagate exceptions back to the application. When <code>ignoreExceptions</code> is
<code>false</code> the AppenderControl will allow the exception to percolate.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>true</code> if exceptions will be logged but not thrown, <code>false</code> otherwise.</dd>
</dl>
</li>
</ul>
<a name="getHandler--">
<!-- -->
</a>
<ul class="blockList">
<li class="blockList">
<h4>getHandler</h4>
<pre><a href="../../../../../org/apache/logging/log4j/core/ErrorHandler.html" title="interface in org.apache.logging.log4j.core">ErrorHandler</a>&nbsp;<a href="../../../../../src-html/org/apache/logging/log4j/core/Appender.html#line.84">getHandler</a>()</pre>
<div class="block">Gets the <a href="../../../../../org/apache/logging/log4j/core/ErrorHandler.html" title="interface in org.apache.logging.log4j.core"><code>ErrorHandler</code></a> used for handling exceptions.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the ErrorHandler for handling exceptions.</dd>
</dl>
</li>
</ul>
<a name="setHandler-org.apache.logging.log4j.core.ErrorHandler-">
<!-- -->
</a>
<ul class="blockListLast">
<li class="blockList">
<h4>setHandler</h4>
<pre>void&nbsp;<a href="../../../../../src-html/org/apache/logging/log4j/core/Appender.html#line.91">setHandler</a>(<a href="../../../../../org/apache/logging/log4j/core/ErrorHandler.html" title="interface in org.apache.logging.log4j.core">ErrorHandler</a>&nbsp;handler)</pre>
<div class="block">Sets the <a href="../../../../../org/apache/logging/log4j/core/ErrorHandler.html" title="interface in org.apache.logging.log4j.core"><code>ErrorHandler</code></a> used for handling exceptions.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>handler</code> - the ErrorHandler to use for handling exceptions.</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/Appender.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/logging/log4j/core/AbstractLogEvent.html" title="class in org.apache.logging.log4j.core"><span class="typeNameLink">Prev&nbsp;Class</span></a></li>
<li><a href="../../../../../org/apache/logging/log4j/core/ContextDataInjector.html" title="interface in org.apache.logging.log4j.core"><span class="typeNameLink">Next&nbsp;Class</span></a></li>
</ul>
<ul class="navList">
<li><a href="../../../../../index.html?org/apache/logging/log4j/core/Appender.html" target="_top">Frames</a></li>
<li><a href="Appender.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><a href="#field.summary">Field</a>&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><a href="#field.detail">Field</a>&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><p align="center">Copyright &#169; 1999-2020 <a href="https://www.apache.org/">The Apache Software Foundation</a>. All Rights Reserved.<br /> Apache Logging, Apache Log4j, Log4j, Apache, the Apache feather logo, the Apache Logging project logo, and the Apache Log4j logo are trademarks of The Apache Software Foundation.</p></small></p>
</body>
</html>