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<h2 title="Uses of Interface org.apache.log4j.spi.OptionHandler" class="title">Uses of Interface<br>org.apache.log4j.spi.OptionHandler</h2>
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<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing packages, and an explanation">
<caption><span>Packages that use <a href="../../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Package</th>
<th class="colLast" scope="col">Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><a href="#org.apache.log4j">org.apache.log4j</a></td>
<td class="colLast">
<div class="block">The main log4j package.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="#org.apache.log4j.helpers">org.apache.log4j.helpers</a></td>
<td class="colLast">
<div class="block">This package is used internally.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="#org.apache.log4j.jdbc">org.apache.log4j.jdbc</a></td>
<td class="colLast">
<div class="block">The JDBCAppender provides for sending log events to a database.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="#org.apache.log4j.lf5">org.apache.log4j.lf5</a></td>
<td class="colLast">&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="#org.apache.log4j.net">org.apache.log4j.net</a></td>
<td class="colLast">
<div class="block">Package for remote logging.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="#org.apache.log4j.nt">org.apache.log4j.nt</a></td>
<td class="colLast">
<div class="block">Package for NT event logging.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="#org.apache.log4j.spi">org.apache.log4j.spi</a></td>
<td class="colLast">
<div class="block">Contains part of the System Programming Interface (SPI) needed to
extend log4j.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><a href="#org.apache.log4j.varia">org.apache.log4j.varia</a></td>
<td class="colLast">
<div class="block">Contains various appenders, filters and other odds and ends.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><a href="#org.apache.log4j.xml">org.apache.log4j.xml</a></td>
<td class="colLast">
<div class="block">XML based components.</div>
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</tbody>
</table>
</li>
<li class="blockList">
<ul class="blockList">
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<h3>Uses of <a href="../../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</a> in <a href="../../../../../org/apache/log4j/package-summary.html">org.apache.log4j</a></h3>
<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing classes, and an explanation">
<caption><span>Classes in <a href="../../../../../org/apache/log4j/package-summary.html">org.apache.log4j</a> that implement <a href="../../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Class and Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/AppenderSkeleton.html" title="class in org.apache.log4j">AppenderSkeleton</a></span></code>
<div class="block">Abstract superclass of the other appenders in the package.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/AsyncAppender.html" title="class in org.apache.log4j">AsyncAppender</a></span></code>
<div class="block">The AsyncAppender lets users log events asynchronously.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/ConsoleAppender.html" title="class in org.apache.log4j">ConsoleAppender</a></span></code>
<div class="block">ConsoleAppender appends log events to <code>System.out</code> or
 <code>System.err</code> using a layout specified by the user.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/DailyRollingFileAppender.html" title="class in org.apache.log4j">DailyRollingFileAppender</a></span></code>
<div class="block">DailyRollingFileAppender extends <a href="../../../../../org/apache/log4j/FileAppender.html" title="class in org.apache.log4j"><code>FileAppender</code></a> so that the
   underlying file is rolled over at a user chosen frequency.</div>
</td>
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<tr class="altColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/EnhancedPatternLayout.html" title="class in org.apache.log4j">EnhancedPatternLayout</a></span></code>
<div class="block">This class is an enhanced version of org.apache.log4j.PatternLayout
 which was originally developed as part of the abandoned log4j 1.3
 effort and has been available in the extras companion.</div>
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</tr>
<tr class="rowColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/FileAppender.html" title="class in org.apache.log4j">FileAppender</a></span></code>
<div class="block">FileAppender appends log events to a file.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/HTMLLayout.html" title="class in org.apache.log4j">HTMLLayout</a></span></code>
<div class="block">This layout outputs events in a HTML table.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/Layout.html" title="class in org.apache.log4j">Layout</a></span></code>
<div class="block">Extend this abstract class to create your own log layout format.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/PatternLayout.html" title="class in org.apache.log4j">PatternLayout</a></span></code>
<div class="block">A flexible layout configurable with pattern string.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/RollingFileAppender.html" title="class in org.apache.log4j">RollingFileAppender</a></span></code>
<div class="block">RollingFileAppender extends FileAppender to backup the log files when
   they reach a certain size.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/SimpleLayout.html" title="class in org.apache.log4j">SimpleLayout</a></span></code>
<div class="block">SimpleLayout consists of the level of the log statement,
   followed by " - " and then the log message itself.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/TTCCLayout.html" title="class in org.apache.log4j">TTCCLayout</a></span></code>
<div class="block">TTCC layout format consists of time, thread, category and nested
 diagnostic context information, hence the name.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/WriterAppender.html" title="class in org.apache.log4j">WriterAppender</a></span></code>
<div class="block">WriterAppender appends log events to a <code>Writer</code> or an
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<h3>Uses of <a href="../../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</a> in <a href="../../../../../org/apache/log4j/helpers/package-summary.html">org.apache.log4j.helpers</a></h3>
<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing classes, and an explanation">
<caption><span>Classes in <a href="../../../../../org/apache/log4j/helpers/package-summary.html">org.apache.log4j.helpers</a> that implement <a href="../../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</a></span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Class and Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/helpers/DateLayout.html" title="class in org.apache.log4j.helpers">DateLayout</a></span></code>
<div class="block">This abstract layout takes care of all the date related options and
   formatting work.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/helpers/OnlyOnceErrorHandler.html" title="class in org.apache.log4j.helpers">OnlyOnceErrorHandler</a></span></code>
<div class="block">The <code>OnlyOnceErrorHandler</code> implements log4j's default
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   first error in an appender and ignoring all following errors.</div>
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<h3>Uses of <a href="../../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</a> in <a href="../../../../../org/apache/log4j/jdbc/package-summary.html">org.apache.log4j.jdbc</a></h3>
<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing classes, and an explanation">
<caption><span>Classes in <a href="../../../../../org/apache/log4j/jdbc/package-summary.html">org.apache.log4j.jdbc</a> that implement <a href="../../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</a></span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<tbody>
<tr class="altColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/jdbc/JDBCAppender.html" title="class in org.apache.log4j.jdbc">JDBCAppender</a></span></code>
<div class="block">The JDBCAppender provides for sending log events to a database.</div>
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<h3>Uses of <a href="../../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</a> in <a href="../../../../../org/apache/log4j/lf5/package-summary.html">org.apache.log4j.lf5</a></h3>
<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing classes, and an explanation">
<caption><span>Classes in <a href="../../../../../org/apache/log4j/lf5/package-summary.html">org.apache.log4j.lf5</a> that implement <a href="../../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Class and Description</th>
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<tbody>
<tr class="altColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/lf5/LF5Appender.html" title="class in org.apache.log4j.lf5">LF5Appender</a></span></code>
<div class="block"><code>LF5Appender</code> logs events to a swing based logging
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<li class="blockList"><a name="org.apache.log4j.net">
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<h3>Uses of <a href="../../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</a> in <a href="../../../../../org/apache/log4j/net/package-summary.html">org.apache.log4j.net</a></h3>
<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing classes, and an explanation">
<caption><span>Classes in <a href="../../../../../org/apache/log4j/net/package-summary.html">org.apache.log4j.net</a> that implement <a href="../../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Class and Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/net/JMSAppender.html" title="class in org.apache.log4j.net">JMSAppender</a></span></code>
<div class="block">A simple appender that publishes events to a JMS Topic.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/net/SMTPAppender.html" title="class in org.apache.log4j.net">SMTPAppender</a></span></code>
<div class="block">Send an e-mail when a specific logging event occurs, typically on
   errors or fatal errors.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/net/SocketAppender.html" title="class in org.apache.log4j.net">SocketAppender</a></span></code>
<div class="block">Sends <a href="../../../../../org/apache/log4j/spi/LoggingEvent.html" title="class in org.apache.log4j.spi"><code>LoggingEvent</code></a> objects to a remote a log server,
    usually a <a href="../../../../../org/apache/log4j/net/SocketNode.html" title="class in org.apache.log4j.net"><code>SocketNode</code></a>.</div>
</td>
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<tr class="rowColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/net/SocketHubAppender.html" title="class in org.apache.log4j.net">SocketHubAppender</a></span></code>
<div class="block">Sends <a href="../../../../../org/apache/log4j/spi/LoggingEvent.html" title="class in org.apache.log4j.spi"><code>LoggingEvent</code></a> objects to a set of remote log servers,
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<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/net/SyslogAppender.html" title="class in org.apache.log4j.net">SyslogAppender</a></span></code>
<div class="block">Use SyslogAppender to send log messages to a remote syslog daemon.</div>
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<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/net/TelnetAppender.html" title="class in org.apache.log4j.net">TelnetAppender</a></span></code>
<div class="block">The TelnetAppender is a log4j appender that specializes in
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<h3>Uses of <a href="../../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</a> in <a href="../../../../../org/apache/log4j/nt/package-summary.html">org.apache.log4j.nt</a></h3>
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<caption><span>Classes in <a href="../../../../../org/apache/log4j/nt/package-summary.html">org.apache.log4j.nt</a> that implement <a href="../../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Class and Description</th>
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<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/nt/NTEventLogAppender.html" title="class in org.apache.log4j.nt">NTEventLogAppender</a></span></code>
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<h3>Uses of <a href="../../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</a> in <a href="../../../../../org/apache/log4j/spi/package-summary.html">org.apache.log4j.spi</a></h3>
<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing subinterfaces, and an explanation">
<caption><span>Subinterfaces of <a href="../../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</a> in <a href="../../../../../org/apache/log4j/spi/package-summary.html">org.apache.log4j.spi</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Interface and Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><code>interface&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/spi/ErrorHandler.html" title="interface in org.apache.log4j.spi">ErrorHandler</a></span></code>
<div class="block">Appenders may delegate their error handling to
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</tr>
</tbody>
</table>
<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing classes, and an explanation">
<caption><span>Classes in <a href="../../../../../org/apache/log4j/spi/package-summary.html">org.apache.log4j.spi</a> that implement <a href="../../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Class and Description</th>
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<tbody>
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<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/spi/Filter.html" title="class in org.apache.log4j.spi">Filter</a></span></code>
<div class="block">Users should extend this class to implement customized logging
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<table class="useSummary" border="0" cellpadding="3" cellspacing="0" summary="Use table, listing classes, and an explanation">
<caption><span>Classes in <a href="../../../../../org/apache/log4j/varia/package-summary.html">org.apache.log4j.varia</a> that implement <a href="../../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</a></span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Class and Description</th>
</tr>
<tbody>
<tr class="altColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/varia/DenyAllFilter.html" title="class in org.apache.log4j.varia">DenyAllFilter</a></span></code>
<div class="block">This filter drops all logging events.</div>
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</tr>
<tr class="rowColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/varia/ExternallyRolledFileAppender.html" title="class in org.apache.log4j.varia">ExternallyRolledFileAppender</a></span></code>
<div class="block">This appender listens on a socket on the port specified by the
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</tr>
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<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/varia/FallbackErrorHandler.html" title="class in org.apache.log4j.varia">FallbackErrorHandler</a></span></code>
<div class="block">The <code>FallbackErrorHandler</code> implements the ErrorHandler
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</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/varia/LevelMatchFilter.html" title="class in org.apache.log4j.varia">LevelMatchFilter</a></span></code>
<div class="block">This is a very simple filter based on level matching.</div>
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</tr>
<tr class="altColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/varia/LevelRangeFilter.html" title="class in org.apache.log4j.varia">LevelRangeFilter</a></span></code>
<div class="block">This is a very simple filter based on level matching, which can be
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</td>
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<tr class="rowColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/varia/NullAppender.html" title="class in org.apache.log4j.varia">NullAppender</a></span></code>
<div class="block">A NullAppender merely exists, it never outputs a message to any
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</td>
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<tr class="altColor">
<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/varia/StringMatchFilter.html" title="class in org.apache.log4j.varia">StringMatchFilter</a></span></code>
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<h3>Uses of <a href="../../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</a> in <a href="../../../../../org/apache/log4j/xml/package-summary.html">org.apache.log4j.xml</a></h3>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Class and Description</th>
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<td class="colFirst"><code>class&nbsp;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/log4j/xml/XMLLayout.html" title="class in org.apache.log4j.xml">XMLLayout</a></span></code>
<div class="block">The output of the XMLLayout consists of a series of log4j:event
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