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org.apache.log4j (Log4j Version 1.2.14)
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<b>Log4j 1.2.14</b></EM>
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<H2>
Package org.apache.log4j
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The main log4j package.
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<B>See:</B>
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<A HREF="#package_description"><B>Description</B></A>
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<B>Interface Summary</B></FONT></TH>
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<TD WIDTH="15%"><B><A HREF="../../../org/apache/log4j/Appender.html" title="interface in org.apache.log4j">Appender</A></B></TD>
<TD>Implement this interface for your own strategies for outputting log
statements.</TD>
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<B>Class Summary</B></FONT></TH>
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<TD WIDTH="15%"><B><A HREF="../../../org/apache/log4j/AppenderSkeleton.html" title="class in org.apache.log4j">AppenderSkeleton</A></B></TD>
<TD>Abstract superclass of the other appenders in the package.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../org/apache/log4j/AsyncAppender.html" title="class in org.apache.log4j">AsyncAppender</A></B></TD>
<TD>The AsyncAppender lets users log events asynchronously.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../org/apache/log4j/BasicConfigurator.html" title="class in org.apache.log4j">BasicConfigurator</A></B></TD>
<TD>Use this class to quickly configure the package.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../org/apache/log4j/Category.html" title="class in org.apache.log4j">Category</A></B></TD>
<TD><font color="#AA2222"><b>This class has been deprecated and
replaced by the <A HREF="../../../org/apache/log4j/Logger.html" title="class in org.apache.log4j"><CODE>Logger</CODE></A> <em>subclass</em></b></font>.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../org/apache/log4j/ConsoleAppender.html" title="class in org.apache.log4j">ConsoleAppender</A></B></TD>
<TD>ConsoleAppender appends log events to <code>System.out</code> or
<code>System.err</code> using a layout specified by the user.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../org/apache/log4j/DailyRollingFileAppender.html" title="class in org.apache.log4j">DailyRollingFileAppender</A></B></TD>
<TD>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>
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<TD WIDTH="15%"><B><A HREF="../../../org/apache/log4j/FileAppender.html" title="class in org.apache.log4j">FileAppender</A></B></TD>
<TD>FileAppender appends log events to a file.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../org/apache/log4j/Hierarchy.html" title="class in org.apache.log4j">Hierarchy</A></B></TD>
<TD>This class is specialized in retrieving loggers by name and also
maintaining the logger hierarchy.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../org/apache/log4j/HTMLLayout.html" title="class in org.apache.log4j">HTMLLayout</A></B></TD>
<TD>This layout outputs events in a HTML table.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../org/apache/log4j/Layout.html" title="class in org.apache.log4j">Layout</A></B></TD>
<TD>Extend this abstract class to create your own log layout format.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../org/apache/log4j/Level.html" title="class in org.apache.log4j">Level</A></B></TD>
<TD>Defines the minimum set of levels recognized by the system, that is
<code>OFF</code>, <code>FATAL</code>, <code>ERROR</code>,
<code>WARN</code>, <code>INFO</code, <code>DEBUG</code> and
<code>ALL</code>.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../org/apache/log4j/Logger.html" title="class in org.apache.log4j">Logger</A></B></TD>
<TD>This is the central class in the log4j package.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../org/apache/log4j/LogManager.html" title="class in org.apache.log4j">LogManager</A></B></TD>
<TD>Use the <code>LogManager</code> class to retreive <A HREF="../../../org/apache/log4j/Logger.html" title="class in org.apache.log4j"><CODE>Logger</CODE></A>
instances or to operate on the current <A HREF="../../../org/apache/log4j/spi/LoggerRepository.html" title="interface in org.apache.log4j.spi"><CODE>LoggerRepository</CODE></A>.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../org/apache/log4j/MDC.html" title="class in org.apache.log4j">MDC</A></B></TD>
<TD>The MDC class is similar to the <A HREF="../../../org/apache/log4j/NDC.html" title="class in org.apache.log4j"><CODE>NDC</CODE></A> class except that it is
based on a map instead of a stack.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../org/apache/log4j/NDC.html" title="class in org.apache.log4j">NDC</A></B></TD>
<TD>The NDC class implements <i>nested diagnostic contexts</i> as
defined by Neil Harrison in the article "Patterns for Logging
Diagnostic Messages" part of the book "<i>Pattern Languages of
Program Design 3</i>" edited by Martin et al.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../org/apache/log4j/PatternLayout.html" title="class in org.apache.log4j">PatternLayout</A></B></TD>
<TD>A flexible layout configurable with pattern string.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../org/apache/log4j/Priority.html" title="class in org.apache.log4j">Priority</A></B></TD>
<TD><font color="#AA4444">Refrain from using this class directly, use
the <A HREF="../../../org/apache/log4j/Level.html" title="class in org.apache.log4j"><CODE>Level</CODE></A> class instead</font>.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../org/apache/log4j/PropertyConfigurator.html" title="class in org.apache.log4j">PropertyConfigurator</A></B></TD>
<TD>Allows the configuration of log4j from an external file.</TD>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../org/apache/log4j/RollingFileAppender.html" title="class in org.apache.log4j">RollingFileAppender</A></B></TD>
<TD>RollingFileAppender extends FileAppender to backup the log files when
they reach a certain size.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../org/apache/log4j/SimpleLayout.html" title="class in org.apache.log4j">SimpleLayout</A></B></TD>
<TD>SimpleLayout consists of the level of the log statement,
followed by " - " and then the log message itself.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../org/apache/log4j/TTCCLayout.html" title="class in org.apache.log4j">TTCCLayout</A></B></TD>
<TD>TTCC layout format consists of time, thread, category and nested
diagnostic context information, hence the name.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD WIDTH="15%"><B><A HREF="../../../org/apache/log4j/WriterAppender.html" title="class in org.apache.log4j">WriterAppender</A></B></TD>
<TD>WriterAppender appends log events to a <A HREF="/usr/share/javadoc/java/java/io/Writer.html?is-external=true" title="class or interface in java.io"><CODE>Writer</CODE></A> or an
<A HREF="/usr/share/javadoc/java/java/io/OutputStream.html?is-external=true" title="class or interface in java.io"><CODE>OutputStream</CODE></A> depending on the user's choice.</TD>
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<P>
<A NAME="package_description"><!-- --></A><H2>
Package org.apache.log4j Description
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<P>
<p>The main log4j package.
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