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org.apache.log4j.spi (Apache Log4j 1.2.15 API)
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<H2>
Package org.apache.log4j.spi
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Contains part of the System Programming Interface (SPI) needed to
extend log4j.
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<A HREF="#package_description"><B>Description</B></A>
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<TD WIDTH="15%"><B><A HREF="../../../../org/apache/log4j/spi/AppenderAttachable.html" title="interface in org.apache.log4j.spi">AppenderAttachable</A></B></TD>
<TD>Interface for attaching appenders to objects.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../../org/apache/log4j/spi/Configurator.html" title="interface in org.apache.log4j.spi">Configurator</A></B></TD>
<TD>Implemented by classes capable of configuring log4j using a URL.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../../org/apache/log4j/spi/ErrorCode.html" title="interface in org.apache.log4j.spi">ErrorCode</A></B></TD>
<TD>This interface defines commonly encoutered error codes.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../../org/apache/log4j/spi/ErrorHandler.html" title="interface in org.apache.log4j.spi">ErrorHandler</A></B></TD>
<TD>Appenders may delegate their error handling to
<code>ErrorHandlers</code>.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../../org/apache/log4j/spi/HierarchyEventListener.html" title="interface in org.apache.log4j.spi">HierarchyEventListener</A></B></TD>
<TD>Listen to events occuring within a <A HREF="../../../../org/apache/log4j/Hierarchy.html" title="class in org.apache.log4j"><CODE>Hierarchy</CODE></A>.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../../org/apache/log4j/spi/LoggerFactory.html" title="interface in org.apache.log4j.spi">LoggerFactory</A></B></TD>
<TD>Implement this interface to create new instances of Logger or
a sub-class of Logger.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../../org/apache/log4j/spi/LoggerRepository.html" title="interface in org.apache.log4j.spi">LoggerRepository</A></B></TD>
<TD>A <code>LoggerRepository</code> is used to create and retrieve
<code>Loggers</code>.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</A></B></TD>
<TD>A string based interface to configure package components.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../../org/apache/log4j/spi/RepositorySelector.html" title="interface in org.apache.log4j.spi">RepositorySelector</A></B></TD>
<TD>The <code>LogManager</code> uses one (and only one)
<code>RepositorySelector</code> implementation to select the
<A HREF="../../../../org/apache/log4j/spi/LoggerRepository.html" title="interface in org.apache.log4j.spi"><CODE>LoggerRepository</CODE></A> for a particular application context.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../../org/apache/log4j/spi/TriggeringEventEvaluator.html" title="interface in org.apache.log4j.spi">TriggeringEventEvaluator</A></B></TD>
<TD>Implementions of this interface allow certain appenders to decide
when to perform an appender specific action.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../../org/apache/log4j/spi/DefaultRepositorySelector.html" title="class in org.apache.log4j.spi">DefaultRepositorySelector</A></B></TD>
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<TD WIDTH="15%"><B><A HREF="../../../../org/apache/log4j/spi/Filter.html" title="class in org.apache.log4j.spi">Filter</A></B></TD>
<TD>Users should extend this class to implement customized logging
event filtering.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../../org/apache/log4j/spi/LocationInfo.html" title="class in org.apache.log4j.spi">LocationInfo</A></B></TD>
<TD>The internal representation of caller location information.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../../org/apache/log4j/spi/LoggingEvent.html" title="class in org.apache.log4j.spi">LoggingEvent</A></B></TD>
<TD>The internal representation of logging events.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../../org/apache/log4j/spi/NOPLogger.html" title="class in org.apache.log4j.spi">NOPLogger</A></B></TD>
<TD>No-operation implementation of Logger used by NOPLoggerRepository.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../../org/apache/log4j/spi/NOPLoggerRepository.html" title="class in org.apache.log4j.spi">NOPLoggerRepository</A></B></TD>
<TD>No-operation implementation of LoggerRepository which is used when
LogManager.repositorySelector is erroneously nulled during class reloading.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../../org/apache/log4j/spi/RootCategory.html" title="class in org.apache.log4j.spi">RootCategory</A></B></TD>
<TD><B>Deprecated.</B> <I>Replaced by <A HREF="../../../../org/apache/log4j/spi/RootLogger.html" title="class in org.apache.log4j.spi"><CODE>RootLogger</CODE></A>.</I></TD>
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<TD WIDTH="15%"><B><A HREF="../../../../org/apache/log4j/spi/RootLogger.html" title="class in org.apache.log4j.spi">RootLogger</A></B></TD>
<TD>RootLogger sits at the top of the logger hierachy.</TD>
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<TD WIDTH="15%"><B><A HREF="../../../../org/apache/log4j/spi/ThrowableInformation.html" title="class in org.apache.log4j.spi">ThrowableInformation</A></B></TD>
<TD>ThrowableInformation is log4j's internal representation of
throwables.</TD>
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<A NAME="package_description"><!-- --></A><H2>
Package org.apache.log4j.spi Description
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Contains part of the System Programming Interface (SPI) needed to
extend log4j.
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