<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <!--NewPage--> <HTML> <HEAD> <!-- Generated by javadoc (build 1.7.0-internal) on Tue Mar 04 15:24:48 EST 2008 --> <TITLE> LevelRangeFilter (Log4j Version 1.2.14) </TITLE> <META NAME="date" CONTENT="2008-03-04"> <LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"> <SCRIPT type="text/javascript"> function windowTitle() { if (location.href.indexOf('is-external=true') == -1) { parent.document.title="LevelRangeFilter (Log4j Version 1.2.14)"; } } </SCRIPT> <NOSCRIPT> </NOSCRIPT> </HEAD> <BODY BGCOLOR="white" onload="windowTitle();"> <HR> <!-- ========= START OF TOP NAVBAR ======= --> <A NAME="navbar_top"><!-- --></A> <A HREF="#skip-navbar_top" title="Skip navigation links"></A> <TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> <TR> <TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A NAME="navbar_top_firstrow"><!-- --></A> <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../overview-summary.html"><FONT CLASS="NavBarFont1"><B>Overview</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-summary.html"><FONT CLASS="NavBarFont1"><B>Package</B></FONT></A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev"> <FONT CLASS="NavBarFont1Rev"><B>Class</B></FONT> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="class-use/LevelRangeFilter.html"><FONT CLASS="NavBarFont1"><B>Use</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="package-tree.html"><FONT CLASS="NavBarFont1"><B>Tree</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../deprecated-list.html"><FONT CLASS="NavBarFont1"><B>Deprecated</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../index-all.html"><FONT CLASS="NavBarFont1"><B>Index</B></FONT></A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="../../../../help-doc.html"><FONT CLASS="NavBarFont1"><B>Help</B></FONT></A> </TD> </TR> </TABLE> </TD> <TD ALIGN="right" VALIGN="top" ROWSPAN=3><EM> <b>Log4j 1.2.14</b></EM> </TD> </TR> <TR> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../org/apache/log4j/varia/LevelMatchFilter.html" title="class in org.apache.log4j.varia"><B>PREV CLASS</B></A> <A HREF="../../../../org/apache/log4j/varia/NullAppender.html" title="class in org.apache.log4j.varia"><B>NEXT CLASS</B></A></FONT></TD> <TD BGCOLOR="white" CLASS="NavBarCell2"><FONT SIZE="-2"> <A HREF="../../../../index.html?org/apache/log4j/varia/LevelRangeFilter.html" target="_top"><B>FRAMES</B></A> <A HREF="LevelRangeFilter.html" target="_top"><B>NO FRAMES</B></A> <SCRIPT type="text/javascript"> <!-- if(window==top) { document.writeln('<A HREF="../../../../allclasses-noframe.html"><B>All Classes</B></A>'); } //--> </SCRIPT> <NOSCRIPT> <A HREF="../../../../allclasses-noframe.html"><B>All Classes</B></A> </NOSCRIPT> </FONT></TD> </TR> <TR> <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> SUMMARY: NESTED | <A HREF="#fields_inherited_from_class_org.apache.log4j.spi.Filter">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD> <TD VALIGN="top" CLASS="NavBarCell3"><FONT SIZE="-2"> DETAIL: FIELD | <A HREF="#constructor_detail">CONSTR</A> | <A HREF="#method_detail">METHOD</A></FONT></TD> </TR> </TABLE> <A NAME="skip-navbar_top"></A> <!-- ========= END OF TOP NAVBAR ========= --> <HR> <!-- ======== START OF CLASS DATA ======== --> <H2> <FONT SIZE="-1"> org.apache.log4j.varia</FONT> <BR> Class LevelRangeFilter</H2> <PRE> <A HREF="/usr/share/javadoc/java/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A> <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../org/apache/log4j/spi/Filter.html" title="class in org.apache.log4j.spi">org.apache.log4j.spi.Filter</A> <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.log4j.varia.LevelRangeFilter</B> </PRE> <DL> <DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</A></DD> </DL> <HR> <DL> <DT><PRE>public class <B>LevelRangeFilter</B><DT>extends <A HREF="../../../../org/apache/log4j/spi/Filter.html" title="class in org.apache.log4j.spi">Filter</A></DL> </PRE> <P> This is a very simple filter based on level matching, which can be used to reject messages with priorities outside a certain range. <p>The filter admits three options <b>LevelMin</b>, <b>LevelMax</b> and <b>AcceptOnMatch</b>. <p>If the level of the <A HREF="../../../../org/apache/log4j/spi/LoggingEvent.html" title="class in org.apache.log4j.spi"><CODE>LoggingEvent</CODE></A> is not between Min and Max (inclusive), then <A HREF="../../../../org/apache/log4j/spi/Filter.html#DENY"><CODE>Filter.DENY</CODE></A> is returned. <p> If the Logging event level is within the specified range, then if <b>AcceptOnMatch</b> is true, <A HREF="../../../../org/apache/log4j/spi/Filter.html#ACCEPT"><CODE>Filter.ACCEPT</CODE></A> is returned, and if <b>AcceptOnMatch</b> is false, <A HREF="../../../../org/apache/log4j/spi/Filter.html#NEUTRAL"><CODE>Filter.NEUTRAL</CODE></A> is returned. <p>If <code>LevelMin</code>w is not defined, then there is no minimum acceptable level (ie a level is never rejected for being too "low"/unimportant). If <code>LevelMax</code> is not defined, then there is no maximum acceptable level (ie a level is never rejected for beeing too "high"/important). <p>Refer to the <A HREF="../../../../org/apache/log4j/AppenderSkeleton.html#setThreshold(org.apache.log4j.Priority)"><CODE>setThreshold</CODE></A> method available to <code>all</code> appenders extending <A HREF="../../../../org/apache/log4j/AppenderSkeleton.html" title="class in org.apache.log4j"><CODE>AppenderSkeleton</CODE></A> for a more convenient way to filter out events by level. <P> <P> <DL> <DT><B>Author:</B></DT> <DD>Simon Kitching, based on code by Ceki Gülcü</DD> </DL> <HR> <P> <!-- =========== FIELD SUMMARY =========== --> <A NAME="field_summary"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> <B>Field Summary</B></FONT></TH> </TR> </TABLE> <A NAME="fields_inherited_from_class_org.apache.log4j.spi.Filter"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> <TH ALIGN="left"><B>Fields inherited from class org.apache.log4j.spi.<A HREF="../../../../org/apache/log4j/spi/Filter.html" title="class in org.apache.log4j.spi">Filter</A></B></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><A HREF="../../../../org/apache/log4j/spi/Filter.html#ACCEPT">ACCEPT</A>, <A HREF="../../../../org/apache/log4j/spi/Filter.html#DENY">DENY</A>, <A HREF="../../../../org/apache/log4j/spi/Filter.html#NEUTRAL">NEUTRAL</A>, <A HREF="../../../../org/apache/log4j/spi/Filter.html#next">next</A></CODE></TD> </TR> </TABLE> <!-- ======== CONSTRUCTOR SUMMARY ======== --> <A NAME="constructor_summary"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> <B>Constructor Summary</B></FONT></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><B><A HREF="../../../../org/apache/log4j/varia/LevelRangeFilter.html#LevelRangeFilter()">LevelRangeFilter</A></B>()</CODE> <BR> </TD> </TR> </TABLE> <!-- ========== METHOD SUMMARY =========== --> <A NAME="method_summary"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> <B>Method Summary</B></FONT></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> int</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../org/apache/log4j/varia/LevelRangeFilter.html#decide(org.apache.log4j.spi.LoggingEvent)">decide</A></B>(<A HREF="../../../../org/apache/log4j/spi/LoggingEvent.html" title="class in org.apache.log4j.spi">LoggingEvent</A> event)</CODE> <BR> Return the decision of this filter.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> boolean</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../org/apache/log4j/varia/LevelRangeFilter.html#getAcceptOnMatch()">getAcceptOnMatch</A></B>()</CODE> <BR> Get the value of the <code>AcceptOnMatch</code> option.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../../../org/apache/log4j/Level.html" title="class in org.apache.log4j">Level</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../org/apache/log4j/varia/LevelRangeFilter.html#getLevelMax()">getLevelMax</A></B>()</CODE> <BR> Get the value of the <code>LevelMax</code> option.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> <A HREF="../../../../org/apache/log4j/Level.html" title="class in org.apache.log4j">Level</A></CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../org/apache/log4j/varia/LevelRangeFilter.html#getLevelMin()">getLevelMin</A></B>()</CODE> <BR> Get the value of the <code>LevelMin</code> option.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../org/apache/log4j/varia/LevelRangeFilter.html#setAcceptOnMatch(boolean)">setAcceptOnMatch</A></B>(boolean acceptOnMatch)</CODE> <BR> Set the <code>AcceptOnMatch</code> option.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../org/apache/log4j/varia/LevelRangeFilter.html#setLevelMax(org.apache.log4j.Level)">setLevelMax</A></B>(<A HREF="../../../../org/apache/log4j/Level.html" title="class in org.apache.log4j">Level</A> levelMax)</CODE> <BR> Set the <code>LevelMax</code> option.</TD> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> <CODE> void</CODE></FONT></TD> <TD><CODE><B><A HREF="../../../../org/apache/log4j/varia/LevelRangeFilter.html#setLevelMin(org.apache.log4j.Level)">setLevelMin</A></B>(<A HREF="../../../../org/apache/log4j/Level.html" title="class in org.apache.log4j">Level</A> levelMin)</CODE> <BR> Set the <code>LevelMin</code> option.</TD> </TR> </TABLE> <A NAME="methods_inherited_from_class_org.apache.log4j.spi.Filter"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> <TH ALIGN="left"><B>Methods inherited from class org.apache.log4j.spi.<A HREF="../../../../org/apache/log4j/spi/Filter.html" title="class in org.apache.log4j.spi">Filter</A></B></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><A HREF="../../../../org/apache/log4j/spi/Filter.html#activateOptions()">activateOptions</A>, <A HREF="../../../../org/apache/log4j/spi/Filter.html#getNext()">getNext</A>, <A HREF="../../../../org/apache/log4j/spi/Filter.html#setNext(org.apache.log4j.spi.Filter)">setNext</A></CODE></TD> </TR> </TABLE> <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> <TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="/usr/share/javadoc/java/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></B></TH> </TR> <TR BGCOLOR="white" CLASS="TableRowColor"> <TD><CODE><A HREF="/usr/share/javadoc/java/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</A>, <A HREF="/usr/share/javadoc/java/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</A>, <A HREF="/usr/share/javadoc/java/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="/usr/share/javadoc/java/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="/usr/share/javadoc/java/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</A>, <A HREF="/usr/share/javadoc/java/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</A>, <A HREF="/usr/share/javadoc/java/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="/usr/share/javadoc/java/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</A>, <A HREF="/usr/share/javadoc/java/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</A>, <A HREF="/usr/share/javadoc/java/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="/usr/share/javadoc/java/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD> </TR> </TABLE> <P> <!-- ========= CONSTRUCTOR DETAIL ======== --> <A NAME="constructor_detail"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> <B>Constructor Detail</B></FONT></TH> </TR> </TABLE> <A NAME="LevelRangeFilter()"><!-- --></A><H3> LevelRangeFilter</H3> <PRE> public <B>LevelRangeFilter</B>()</PRE> <DL> </DL> <!-- ============ METHOD DETAIL ========== --> <A NAME="method_detail"><!-- --></A> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> <B>Method Detail</B></FONT></TH> </TR> </TABLE> <A NAME="decide(org.apache.log4j.spi.LoggingEvent)"><!-- --></A><H3> decide</H3> <PRE> public int <B>decide</B>(<A HREF="../../../../org/apache/log4j/spi/LoggingEvent.html" title="class in org.apache.log4j.spi">LoggingEvent</A> event)</PRE> <DL> <DD>Return the decision of this filter. <P> <DD><DL> <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../org/apache/log4j/spi/Filter.html#decide(org.apache.log4j.spi.LoggingEvent)">decide</A></CODE> in class <CODE><A HREF="../../../../org/apache/log4j/spi/Filter.html" title="class in org.apache.log4j.spi">Filter</A></CODE></DL> </DD> <DD><DL> <DT><B>Parameters:</B><DD><CODE>event</CODE> - The LoggingEvent to decide upon. <DT><B>Returns:</B><DD>decision The decision of the filter.</DL> </DD> </DL> <HR> <A NAME="getLevelMax()"><!-- --></A><H3> getLevelMax</H3> <PRE> public <A HREF="../../../../org/apache/log4j/Level.html" title="class in org.apache.log4j">Level</A> <B>getLevelMax</B>()</PRE> <DL> <DD>Get the value of the <code>LevelMax</code> option. <P> <DD><DL> </DL> </DD> </DL> <HR> <A NAME="getLevelMin()"><!-- --></A><H3> getLevelMin</H3> <PRE> public <A HREF="../../../../org/apache/log4j/Level.html" title="class in org.apache.log4j">Level</A> <B>getLevelMin</B>()</PRE> <DL> <DD>Get the value of the <code>LevelMin</code> option. <P> <DD><DL> </DL> </DD> </DL> <HR> <A NAME="getAcceptOnMatch()"><!-- --></A><H3> getAcceptOnMatch</H3> <PRE> public boolean <B>getAcceptOnMatch</B>()</PRE> <DL> <DD>Get the value of the <code>AcceptOnMatch</code> option. <P> <DD><DL> </DL> </DD> </DL> <HR> <A NAME="setLevelMax(org.apache.log4j.Level)"><!-- --></A><H3> setLevelMax</H3> <PRE> public void <B>setLevelMax</B>(<A HREF="../../../../org/apache/log4j/Level.html" title="class in org.apache.log4j">Level</A> levelMax)</PRE> <DL> <DD>Set the <code>LevelMax</code> option. <P> <DD><DL> </DL> </DD> </DL> <HR> <A NAME="setLevelMin(org.apache.log4j.Level)"><!-- --></A><H3> setLevelMin</H3> <PRE> public void <B>setLevelMin</B>(<A HREF="../../../../org/apache/log4j/Level.html" title="class in org.apache.log4j">Level</A> levelMin)</PRE> <DL> <DD>Set the <code>LevelMin</code> option. <P> <DD><DL> </DL> </DD> </DL> <HR> <A NAME="setAcceptOnMatch(boolean)"><!-- --></A><H3> setAcceptOnMatch</H3> <PRE> public void <B>setAcceptOnMatch</B>(boolean acceptOnMatch)</PRE> <DL> <DD>Set the <code>AcceptOnMatch</code> option. <P> <DD><DL> </DL> </DD> </DL> <!-- ========= END OF CLASS DATA ========= --> <HR> <!-- ======= START OF BOTTOM NAVBAR ====== --> <A NAME="navbar_bottom"><!-- --></A> <A HREF="#skip-navbar_bottom" title="Skip navigation links"></A> <TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> <TR> <TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A NAME="navbar_bottom_firstrow"><!-- --></A> <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A 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