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| Package org.apache.log4j.spi |
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| Contains part of the System Programming Interface (SPI) needed to |
| extend log4j. |
| <P> |
| <B>See:</B> |
| <BR> |
| <A HREF="#package_description"><B>Description</B></A> |
| <P> |
| |
| <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
| <B>Interface Summary</B></FONT></TH> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <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> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <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> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <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> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <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> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <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> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <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> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <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> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <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> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD WIDTH="15%"><B><A HREF="../../../../org/apache/log4j/spi/RendererSupport.html" title="interface in org.apache.log4j.spi">RendererSupport</A></B></TD> |
| <TD> </TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <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> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD WIDTH="15%"><B><A HREF="../../../../org/apache/log4j/spi/ThrowableRenderer.html" title="interface in org.apache.log4j.spi">ThrowableRenderer</A></B></TD> |
| <TD>Implemented by classes that render instances of |
| java.lang.Throwable (exceptions and errors) |
| into a string representation.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD WIDTH="15%"><B><A HREF="../../../../org/apache/log4j/spi/ThrowableRendererSupport.html" title="interface in org.apache.log4j.spi">ThrowableRendererSupport</A></B></TD> |
| <TD>Implemented by logger repositories that support configurable |
| rendering of Throwables.</TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <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> |
| </TR> |
| </TABLE> |
| |
| |
| <P> |
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| <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
| <B>Class Summary</B></FONT></TH> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <TD WIDTH="15%"><B><A HREF="../../../../org/apache/log4j/spi/DefaultRepositorySelector.html" title="class in org.apache.log4j.spi">DefaultRepositorySelector</A></B></TD> |
| <TD> </TD> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <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> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <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> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <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> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <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> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <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> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <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> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <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> |
| </TR> |
| <TR BGCOLOR="white" CLASS="TableRowColor"> |
| <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> |
| </TR> |
| </TABLE> |
| |
| |
| <P> |
| <A NAME="package_description"><!-- --></A><H2> |
| Package org.apache.log4j.spi Description |
| </H2> |
| |
| <P> |
| Contains part of the System Programming Interface (SPI) needed to |
| extend log4j. |
| <P> |
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