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<B>Uses of Interface<br>org.apache.log4j.spi.OptionHandler</B></H2>
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Packages that use <A HREF="../../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</A></FONT></TH>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><A HREF="#org.apache.log4j"><B>org.apache.log4j</B></A></TD>
<TD>The main log4j package. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><A HREF="#org.apache.log4j.helpers"><B>org.apache.log4j.helpers</B></A></TD>
<TD>This package is used internally. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><A HREF="#org.apache.log4j.jdbc"><B>org.apache.log4j.jdbc</B></A></TD>
<TD>The JDBCAppender provides for sending log events to a database. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><A HREF="#org.apache.log4j.lf5"><B>org.apache.log4j.lf5</B></A></TD>
<TD> </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><A HREF="#org.apache.log4j.net"><B>org.apache.log4j.net</B></A></TD>
<TD>Package for remote logging. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><A HREF="#org.apache.log4j.nt"><B>org.apache.log4j.nt</B></A></TD>
<TD>Package for NT event logging. </TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><A HREF="#org.apache.log4j.spi"><B>org.apache.log4j.spi</B></A></TD>
<TD>Contains part of the System Programming Interface (SPI) needed to
extend log4j. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><A HREF="#org.apache.log4j.varia"><B>org.apache.log4j.varia</B></A></TD>
<TD>Contains various appenders, filters and other odds and ends. </TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><A HREF="#org.apache.log4j.xml"><B>org.apache.log4j.xml</B></A></TD>
<TD>XML based components. </TD>
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<P>
<A NAME="org.apache.log4j"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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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></FONT></TH>
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<TH ALIGN="left" COLSPAN="2">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></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/AppenderSkeleton.html" title="class in org.apache.log4j">AppenderSkeleton</A></B></CODE>
<BR>
Abstract superclass of the other appenders in the package.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/AsyncAppender.html" title="class in org.apache.log4j">AsyncAppender</A></B></CODE>
<BR>
The AsyncAppender lets users log events asynchronously.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/ConsoleAppender.html" title="class in org.apache.log4j">ConsoleAppender</A></B></CODE>
<BR>
ConsoleAppender appends log events to <code>System.out</code> or
<code>System.err</code> using a layout specified by the user.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/DailyRollingFileAppender.html" title="class in org.apache.log4j">DailyRollingFileAppender</A></B></CODE>
<BR>
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.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/FileAppender.html" title="class in org.apache.log4j">FileAppender</A></B></CODE>
<BR>
FileAppender appends log events to a file.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/HTMLLayout.html" title="class in org.apache.log4j">HTMLLayout</A></B></CODE>
<BR>
This layout outputs events in a HTML table.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/Layout.html" title="class in org.apache.log4j">Layout</A></B></CODE>
<BR>
Extend this abstract class to create your own log layout format.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/PatternLayout.html" title="class in org.apache.log4j">PatternLayout</A></B></CODE>
<BR>
A flexible layout configurable with pattern string.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/RollingFileAppender.html" title="class in org.apache.log4j">RollingFileAppender</A></B></CODE>
<BR>
RollingFileAppender extends FileAppender to backup the log files when
they reach a certain size.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/SimpleLayout.html" title="class in org.apache.log4j">SimpleLayout</A></B></CODE>
<BR>
SimpleLayout consists of the level of the log statement,
followed by " - " and then the log message itself.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/TTCCLayout.html" title="class in org.apache.log4j">TTCCLayout</A></B></CODE>
<BR>
TTCC layout format consists of time, thread, category and nested
diagnostic context information, hence the name.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/WriterAppender.html" title="class in org.apache.log4j">WriterAppender</A></B></CODE>
<BR>
WriterAppender appends log events to a <CODE>Writer</CODE> or an
<CODE>OutputStream</CODE> depending on the user's choice.</TD>
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<A NAME="org.apache.log4j.helpers"><!-- --></A>
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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></FONT></TH>
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<P>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left" COLSPAN="2">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></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/helpers/DateLayout.html" title="class in org.apache.log4j.helpers">DateLayout</A></B></CODE>
<BR>
This abstract layout takes care of all the date related options and
formatting work.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/helpers/OnlyOnceErrorHandler.html" title="class in org.apache.log4j.helpers">OnlyOnceErrorHandler</A></B></CODE>
<BR>
The <code>OnlyOnceErrorHandler</code> implements log4j's default
error handling policy which consists of emitting a message for the
first error in an appender and ignoring all following errors.</TD>
</TR>
</TABLE>
<P>
<A NAME="org.apache.log4j.jdbc"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
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></FONT></TH>
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</TABLE>
<P>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left" COLSPAN="2">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></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/jdbc/JDBCAppender.html" title="class in org.apache.log4j.jdbc">JDBCAppender</A></B></CODE>
<BR>
<b><font color="#FF2222">WARNING: This version of JDBCAppender
is very likely to be completely replaced in the future.</TD>
</TR>
</TABLE>
<P>
<A NAME="org.apache.log4j.lf5"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
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></FONT></TH>
</TR>
</TABLE>
<P>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left" COLSPAN="2">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></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/lf5/LF5Appender.html" title="class in org.apache.log4j.lf5">LF5Appender</A></B></CODE>
<BR>
<code>LF5Appender</code> logs events to a swing based logging
console.</TD>
</TR>
</TABLE>
<P>
<A NAME="org.apache.log4j.net"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
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></FONT></TH>
</TR>
</TABLE>
<P>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left" COLSPAN="2">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></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/net/JMSAppender.html" title="class in org.apache.log4j.net">JMSAppender</A></B></CODE>
<BR>
A simple appender that publishes events to a JMS Topic.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/net/SMTPAppender.html" title="class in org.apache.log4j.net">SMTPAppender</A></B></CODE>
<BR>
Send an e-mail when a specific logging event occurs, typically on
errors or fatal errors.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/net/SocketAppender.html" title="class in org.apache.log4j.net">SocketAppender</A></B></CODE>
<BR>
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>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/net/SocketHubAppender.html" title="class in org.apache.log4j.net">SocketHubAppender</A></B></CODE>
<BR>
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,
usually a <A HREF="../../../../../org/apache/log4j/net/SocketNode.html" title="class in org.apache.log4j.net"><CODE>SocketNodes</CODE></A>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/net/SyslogAppender.html" title="class in org.apache.log4j.net">SyslogAppender</A></B></CODE>
<BR>
Use SyslogAppender to send log messages to a remote syslog daemon.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/net/TelnetAppender.html" title="class in org.apache.log4j.net">TelnetAppender</A></B></CODE>
<BR>
The TelnetAppender is a log4j appender that specializes in
writing to a read-only socket.</TD>
</TR>
</TABLE>
<P>
<A NAME="org.apache.log4j.nt"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
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></FONT></TH>
</TR>
</TABLE>
<P>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left" COLSPAN="2">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></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/nt/NTEventLogAppender.html" title="class in org.apache.log4j.nt">NTEventLogAppender</A></B></CODE>
<BR>
Append to the NT event log system.</TD>
</TR>
</TABLE>
<P>
<A NAME="org.apache.log4j.spi"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
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></FONT></TH>
</TR>
</TABLE>
<P>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left" COLSPAN="2">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></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> interface</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/spi/ErrorHandler.html" title="interface in org.apache.log4j.spi">ErrorHandler</A></B></CODE>
<BR>
Appenders may delegate their error handling to
<code>ErrorHandlers</code>.</TD>
</TR>
</TABLE>
<P>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left" COLSPAN="2">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></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/spi/Filter.html" title="class in org.apache.log4j.spi">Filter</A></B></CODE>
<BR>
Users should extend this class to implement customized logging
event filtering.</TD>
</TR>
</TABLE>
<P>
<A NAME="org.apache.log4j.varia"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
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/varia/package-summary.html">org.apache.log4j.varia</A></FONT></TH>
</TR>
</TABLE>
<P>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left" COLSPAN="2">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></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/varia/DenyAllFilter.html" title="class in org.apache.log4j.varia">DenyAllFilter</A></B></CODE>
<BR>
This filter drops all logging events.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/varia/ExternallyRolledFileAppender.html" title="class in org.apache.log4j.varia">ExternallyRolledFileAppender</A></B></CODE>
<BR>
This appender listens on a socket on the port specified by the
<b>Port</b> property for a "RollOver" message.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/varia/FallbackErrorHandler.html" title="class in org.apache.log4j.varia">FallbackErrorHandler</A></B></CODE>
<BR>
The <code>FallbackErrorHandler</code> implements the ErrorHandler
interface such that a secondary appender may be specified.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/varia/LevelMatchFilter.html" title="class in org.apache.log4j.varia">LevelMatchFilter</A></B></CODE>
<BR>
This is a very simple filter based on level matching.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/varia/LevelRangeFilter.html" title="class in org.apache.log4j.varia">LevelRangeFilter</A></B></CODE>
<BR>
This is a very simple filter based on level matching, which can be
used to reject messages with priorities outside a certain range.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/varia/NullAppender.html" title="class in org.apache.log4j.varia">NullAppender</A></B></CODE>
<BR>
A NullAppender merely exists, it never outputs a message to any
device.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/varia/StringMatchFilter.html" title="class in org.apache.log4j.varia">StringMatchFilter</A></B></CODE>
<BR>
This is a very simple filter based on string matching.</TD>
</TR>
</TABLE>
<P>
<A NAME="org.apache.log4j.xml"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
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></FONT></TH>
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<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
<TH ALIGN="left" COLSPAN="2">Classes in <A HREF="../../../../../org/apache/log4j/xml/package-summary.html">org.apache.log4j.xml</A> that implement <A HREF="../../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</A></FONT></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> class</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../org/apache/log4j/xml/XMLLayout.html" title="class in org.apache.log4j.xml">XMLLayout</A></B></CODE>
<BR>
The output of the XMLLayout consists of a series of log4j:event
elements as defined in the <a
href="../../../../../org/apache/log4j/xml/log4j.dtd">log4j.dtd</a>.</TD>
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