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DailyRollingFileAppender (Log4j Version 1.2.14)
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<b>Log4j 1.2.14</b></EM>
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SUMMARY: NESTED | <A HREF="#fields_inherited_from_class_org.apache.log4j.FileAppender">FIELD</A> | <A HREF="#constructor_summary">CONSTR</A> | <A HREF="#method_summary">METHOD</A></FONT></TD>
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org.apache.log4j</FONT>
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Class DailyRollingFileAppender</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/AppenderSkeleton.html" title="class in org.apache.log4j">org.apache.log4j.AppenderSkeleton</A>
<IMG SRC="../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../org/apache/log4j/WriterAppender.html" title="class in org.apache.log4j">org.apache.log4j.WriterAppender</A>
<IMG SRC="../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../org/apache/log4j/FileAppender.html" title="class in org.apache.log4j">org.apache.log4j.FileAppender</A>
<IMG SRC="../../../resources/inherit.gif" ALT="extended by "><B>org.apache.log4j.DailyRollingFileAppender</B>
</PRE>
<DL>
<DT><B>All Implemented Interfaces:</B> <DD><A HREF="../../../org/apache/log4j/Appender.html" title="interface in org.apache.log4j">Appender</A>, <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>DailyRollingFileAppender</B><DT>extends <A HREF="../../../org/apache/log4j/FileAppender.html" title="class in org.apache.log4j">FileAppender</A></DL>
</PRE>
<P>
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.
<p>The rolling schedule is specified by the <b>DatePattern</b>
option. This pattern should follow the <A HREF="/usr/share/javadoc/java/java/text/SimpleDateFormat.html?is-external=true" title="class or interface in java.text"><CODE>SimpleDateFormat</CODE></A>
conventions. In particular, you <em>must</em> escape literal text
within a pair of single quotes. A formatted version of the date
pattern is used as the suffix for the rolled file name.
<p>For example, if the <b>File</b> option is set to
<code>/foo/bar.log</code> and the <b>DatePattern</b> set to
<code>'.'yyyy-MM-dd</code>, on 2001-02-16 at midnight, the logging
file <code>/foo/bar.log</code> will be copied to
<code>/foo/bar.log.2001-02-16</code> and logging for 2001-02-17
will continue in <code>/foo/bar.log</code> until it rolls over
the next day.
<p>Is is possible to specify monthly, weekly, half-daily, daily,
hourly, or minutely rollover schedules.
<p><table border="1" cellpadding="2">
<tr>
<th>DatePattern</th>
<th>Rollover schedule</th>
<th>Example</th>
<tr>
<td><code>'.'yyyy-MM</code>
<td>Rollover at the beginning of each month</td>
<td>At midnight of May 31st, 2002 <code>/foo/bar.log</code> will be
copied to <code>/foo/bar.log.2002-05</code>. Logging for the month
of June will be output to <code>/foo/bar.log</code> until it is
also rolled over the next month.
<tr>
<td><code>'.'yyyy-ww</code>
<td>Rollover at the first day of each week. The first day of the
week depends on the locale.</td>
<td>Assuming the first day of the week is Sunday, on Saturday
midnight, June 9th 2002, the file <i>/foo/bar.log</i> will be
copied to <i>/foo/bar.log.2002-23</i>. Logging for the 24th week
of 2002 will be output to <code>/foo/bar.log</code> until it is
rolled over the next week.
<tr>
<td><code>'.'yyyy-MM-dd</code>
<td>Rollover at midnight each day.</td>
<td>At midnight, on March 8th, 2002, <code>/foo/bar.log</code> will
be copied to <code>/foo/bar.log.2002-03-08</code>. Logging for the
9th day of March will be output to <code>/foo/bar.log</code> until
it is rolled over the next day.
<tr>
<td><code>'.'yyyy-MM-dd-a</code>
<td>Rollover at midnight and midday of each day.</td>
<td>At noon, on March 9th, 2002, <code>/foo/bar.log</code> will be
copied to <code>/foo/bar.log.2002-03-09-AM</code>. Logging for the
afternoon of the 9th will be output to <code>/foo/bar.log</code>
until it is rolled over at midnight.
<tr>
<td><code>'.'yyyy-MM-dd-HH</code>
<td>Rollover at the top of every hour.</td>
<td>At approximately 11:00.000 o'clock on March 9th, 2002,
<code>/foo/bar.log</code> will be copied to
<code>/foo/bar.log.2002-03-09-10</code>. Logging for the 11th hour
of the 9th of March will be output to <code>/foo/bar.log</code>
until it is rolled over at the beginning of the next hour.
<tr>
<td><code>'.'yyyy-MM-dd-HH-mm</code>
<td>Rollover at the beginning of every minute.</td>
<td>At approximately 11:23,000, on March 9th, 2001,
<code>/foo/bar.log</code> will be copied to
<code>/foo/bar.log.2001-03-09-10-22</code>. Logging for the minute
of 11:23 (9th of March) will be output to
<code>/foo/bar.log</code> until it is rolled over the next minute.
</table>
<p>Do not use the colon ":" character in anywhere in the
<b>DatePattern</b> option. The text before the colon is interpeted
as the protocol specificaion of a URL which is probably not what
you want.
<P>
<P>
<DL>
<DT><B>Author:</B></DT>
<DD>Eirik Lygre, Ceki Gülcü</DD>
</DL>
<HR>
<P>
<!-- =========== FIELD SUMMARY =========== -->
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<A NAME="fields_inherited_from_class_org.apache.log4j.FileAppender"><!-- --></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.<A HREF="../../../org/apache/log4j/FileAppender.html" title="class in org.apache.log4j">FileAppender</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../org/apache/log4j/FileAppender.html#bufferedIO">bufferedIO</A>, <A HREF="../../../org/apache/log4j/FileAppender.html#bufferSize">bufferSize</A>, <A HREF="../../../org/apache/log4j/FileAppender.html#fileAppend">fileAppend</A>, <A HREF="../../../org/apache/log4j/FileAppender.html#fileName">fileName</A></CODE></TD>
</TR>
</TABLE>
<A NAME="fields_inherited_from_class_org.apache.log4j.WriterAppender"><!-- --></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.<A HREF="../../../org/apache/log4j/WriterAppender.html" title="class in org.apache.log4j">WriterAppender</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../org/apache/log4j/WriterAppender.html#encoding">encoding</A>, <A HREF="../../../org/apache/log4j/WriterAppender.html#immediateFlush">immediateFlush</A>, <A HREF="../../../org/apache/log4j/WriterAppender.html#qw">qw</A></CODE></TD>
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<A NAME="fields_inherited_from_class_org.apache.log4j.AppenderSkeleton"><!-- --></A>
<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TH ALIGN="left"><B>Fields inherited from class org.apache.log4j.<A HREF="../../../org/apache/log4j/AppenderSkeleton.html" title="class in org.apache.log4j">AppenderSkeleton</A></B></TH>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../org/apache/log4j/AppenderSkeleton.html#closed">closed</A>, <A HREF="../../../org/apache/log4j/AppenderSkeleton.html#errorHandler">errorHandler</A>, <A HREF="../../../org/apache/log4j/AppenderSkeleton.html#headFilter">headFilter</A>, <A HREF="../../../org/apache/log4j/AppenderSkeleton.html#layout">layout</A>, <A HREF="../../../org/apache/log4j/AppenderSkeleton.html#name">name</A>, <A HREF="../../../org/apache/log4j/AppenderSkeleton.html#tailFilter">tailFilter</A>, <A HREF="../../../org/apache/log4j/AppenderSkeleton.html#threshold">threshold</A></CODE></TD>
</TR>
</TABLE>
<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<TD><CODE><B><A HREF="../../../org/apache/log4j/DailyRollingFileAppender.html#DailyRollingFileAppender()">DailyRollingFileAppender</A></B>()</CODE>
<BR>
The default constructor does nothing.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><B><A HREF="../../../org/apache/log4j/DailyRollingFileAppender.html#DailyRollingFileAppender(org.apache.log4j.Layout, java.lang.String, java.lang.String)">DailyRollingFileAppender</A></B>(<A HREF="../../../org/apache/log4j/Layout.html" title="class in org.apache.log4j">Layout</A> layout,
<A HREF="/usr/share/javadoc/java/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> filename,
<A HREF="/usr/share/javadoc/java/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> datePattern)</CODE>
<BR>
Instantiate a <code>DailyRollingFileAppender</code> and open the
file designated by <code>filename</code>.</TD>
</TR>
</TABLE>
<!-- ========== METHOD SUMMARY =========== -->
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<B>Method Summary</B></FONT></TH>
</TR>
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/log4j/DailyRollingFileAppender.html#activateOptions()">activateOptions</A></B>()</CODE>
<BR>
If the value of <b>File</b> is not <code>null</code>, then <A HREF="../../../org/apache/log4j/FileAppender.html#setFile(java.lang.String)"><CODE>FileAppender.setFile(java.lang.String)</CODE></A> is called with the values of <b>File</b> and
<b>Append</b> properties.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE> <A HREF="/usr/share/javadoc/java/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/log4j/DailyRollingFileAppender.html#getDatePattern()">getDatePattern</A></B>()</CODE>
<BR>
Returns the value of the <b>DatePattern</b> 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/DailyRollingFileAppender.html#setDatePattern(java.lang.String)">setDatePattern</A></B>(<A HREF="/usr/share/javadoc/java/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> pattern)</CODE>
<BR>
The <b>DatePattern</b> takes a string in the same format as
expected by <A HREF="/usr/share/javadoc/java/java/text/SimpleDateFormat.html?is-external=true" title="class or interface in java.text"><CODE>SimpleDateFormat</CODE></A>.</TD>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
<CODE>protected void</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../org/apache/log4j/DailyRollingFileAppender.html#subAppend(org.apache.log4j.spi.LoggingEvent)">subAppend</A></B>(<A HREF="../../../org/apache/log4j/spi/LoggingEvent.html" title="class in org.apache.log4j.spi">LoggingEvent</A> event)</CODE>
<BR>
This method differentiates DailyRollingFileAppender from its
super class.</TD>
</TR>
</TABLE>
<A NAME="methods_inherited_from_class_org.apache.log4j.FileAppender"><!-- --></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.<A HREF="../../../org/apache/log4j/FileAppender.html" title="class in org.apache.log4j">FileAppender</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../org/apache/log4j/FileAppender.html#closeFile()">closeFile</A>, <A HREF="../../../org/apache/log4j/FileAppender.html#getAppend()">getAppend</A>, <A HREF="../../../org/apache/log4j/FileAppender.html#getBufferedIO()">getBufferedIO</A>, <A HREF="../../../org/apache/log4j/FileAppender.html#getBufferSize()">getBufferSize</A>, <A HREF="../../../org/apache/log4j/FileAppender.html#getFile()">getFile</A>, <A HREF="../../../org/apache/log4j/FileAppender.html#reset()">reset</A>, <A HREF="../../../org/apache/log4j/FileAppender.html#setAppend(boolean)">setAppend</A>, <A HREF="../../../org/apache/log4j/FileAppender.html#setBufferedIO(boolean)">setBufferedIO</A>, <A HREF="../../../org/apache/log4j/FileAppender.html#setBufferSize(int)">setBufferSize</A>, <A HREF="../../../org/apache/log4j/FileAppender.html#setFile(java.lang.String)">setFile</A>, <A HREF="../../../org/apache/log4j/FileAppender.html#setFile(java.lang.String, boolean, boolean, int)">setFile</A>, <A HREF="../../../org/apache/log4j/FileAppender.html#setQWForFiles(java.io.Writer)">setQWForFiles</A></CODE></TD>
</TR>
</TABLE>
<A NAME="methods_inherited_from_class_org.apache.log4j.WriterAppender"><!-- --></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.<A HREF="../../../org/apache/log4j/WriterAppender.html" title="class in org.apache.log4j">WriterAppender</A></B></TH>
</TR>
<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../org/apache/log4j/WriterAppender.html#append(org.apache.log4j.spi.LoggingEvent)">append</A>, <A HREF="../../../org/apache/log4j/WriterAppender.html#checkEntryConditions()">checkEntryConditions</A>, <A HREF="../../../org/apache/log4j/WriterAppender.html#close()">close</A>, <A HREF="../../../org/apache/log4j/WriterAppender.html#closeWriter()">closeWriter</A>, <A HREF="../../../org/apache/log4j/WriterAppender.html#createWriter(java.io.OutputStream)">createWriter</A>, <A HREF="../../../org/apache/log4j/WriterAppender.html#getEncoding()">getEncoding</A>, <A HREF="../../../org/apache/log4j/WriterAppender.html#getImmediateFlush()">getImmediateFlush</A>, <A HREF="../../../org/apache/log4j/WriterAppender.html#requiresLayout()">requiresLayout</A>, <A HREF="../../../org/apache/log4j/WriterAppender.html#setEncoding(java.lang.String)">setEncoding</A>, <A HREF="../../../org/apache/log4j/WriterAppender.html#setErrorHandler(org.apache.log4j.spi.ErrorHandler)">setErrorHandler</A>, <A HREF="../../../org/apache/log4j/WriterAppender.html#setImmediateFlush(boolean)">setImmediateFlush</A>, <A HREF="../../../org/apache/log4j/WriterAppender.html#setWriter(java.io.Writer)">setWriter</A>, <A HREF="../../../org/apache/log4j/WriterAppender.html#writeFooter()">writeFooter</A>, <A HREF="../../../org/apache/log4j/WriterAppender.html#writeHeader()">writeHeader</A></CODE></TD>
</TR>
</TABLE>
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<TR BGCOLOR="white" CLASS="TableRowColor">
<TD><CODE><A HREF="../../../org/apache/log4j/AppenderSkeleton.html#addFilter(org.apache.log4j.spi.Filter)">addFilter</A>, <A HREF="../../../org/apache/log4j/AppenderSkeleton.html#clearFilters()">clearFilters</A>, <A HREF="../../../org/apache/log4j/AppenderSkeleton.html#doAppend(org.apache.log4j.spi.LoggingEvent)">doAppend</A>, <A HREF="../../../org/apache/log4j/AppenderSkeleton.html#finalize()">finalize</A>, <A HREF="../../../org/apache/log4j/AppenderSkeleton.html#getErrorHandler()">getErrorHandler</A>, <A HREF="../../../org/apache/log4j/AppenderSkeleton.html#getFilter()">getFilter</A>, <A HREF="../../../org/apache/log4j/AppenderSkeleton.html#getFirstFilter()">getFirstFilter</A>, <A HREF="../../../org/apache/log4j/AppenderSkeleton.html#getLayout()">getLayout</A>, <A HREF="../../../org/apache/log4j/AppenderSkeleton.html#getName()">getName</A>, <A HREF="../../../org/apache/log4j/AppenderSkeleton.html#getThreshold()">getThreshold</A>, <A HREF="../../../org/apache/log4j/AppenderSkeleton.html#isAsSevereAsThreshold(org.apache.log4j.Priority)">isAsSevereAsThreshold</A>, <A HREF="../../../org/apache/log4j/AppenderSkeleton.html#setLayout(org.apache.log4j.Layout)">setLayout</A>, <A HREF="../../../org/apache/log4j/AppenderSkeleton.html#setName(java.lang.String)">setName</A>, <A HREF="../../../org/apache/log4j/AppenderSkeleton.html#setThreshold(org.apache.log4j.Priority)">setThreshold</A></CODE></TD>
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<A NAME="DailyRollingFileAppender()"><!-- --></A><H3>
DailyRollingFileAppender</H3>
<PRE>
public <B>DailyRollingFileAppender</B>()</PRE>
<DL>
<DD>The default constructor does nothing.
<P>
</DL>
<HR>
<A NAME="DailyRollingFileAppender(org.apache.log4j.Layout, java.lang.String, java.lang.String)"><!-- --></A><H3>
DailyRollingFileAppender</H3>
<PRE>
public <B>DailyRollingFileAppender</B>(<A HREF="../../../org/apache/log4j/Layout.html" title="class in org.apache.log4j">Layout</A> layout,
<A HREF="/usr/share/javadoc/java/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> filename,
<A HREF="/usr/share/javadoc/java/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> datePattern)
throws <A HREF="/usr/share/javadoc/java/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></PRE>
<DL>
<DD>Instantiate a <code>DailyRollingFileAppender</code> and open the
file designated by <code>filename</code>. The opened filename will
become the ouput destination for this appender.
<P>
<DL>
<DT><B>Throws:</B>
<DD><CODE><A HREF="/usr/share/javadoc/java/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</A></CODE></DL>
</DL>
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<A NAME="setDatePattern(java.lang.String)"><!-- --></A><H3>
setDatePattern</H3>
<PRE>
public void <B>setDatePattern</B>(<A HREF="/usr/share/javadoc/java/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> pattern)</PRE>
<DL>
<DD>The <b>DatePattern</b> takes a string in the same format as
expected by <A HREF="/usr/share/javadoc/java/java/text/SimpleDateFormat.html?is-external=true" title="class or interface in java.text"><CODE>SimpleDateFormat</CODE></A>. This options determines the
rollover schedule.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="getDatePattern()"><!-- --></A><H3>
getDatePattern</H3>
<PRE>
public <A HREF="/usr/share/javadoc/java/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> <B>getDatePattern</B>()</PRE>
<DL>
<DD>Returns the value of the <b>DatePattern</b> option.
<P>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="activateOptions()"><!-- --></A><H3>
activateOptions</H3>
<PRE>
public void <B>activateOptions</B>()</PRE>
<DL>
<DD><B>Description copied from class: <CODE><A HREF="../../../org/apache/log4j/FileAppender.html#activateOptions()">FileAppender</A></CODE></B></DD>
<DD>If the value of <b>File</b> is not <code>null</code>, then <A HREF="../../../org/apache/log4j/FileAppender.html#setFile(java.lang.String)"><CODE>FileAppender.setFile(java.lang.String)</CODE></A> is called with the values of <b>File</b> and
<b>Append</b> properties.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../org/apache/log4j/spi/OptionHandler.html#activateOptions()">activateOptions</A></CODE> in interface <CODE><A HREF="../../../org/apache/log4j/spi/OptionHandler.html" title="interface in org.apache.log4j.spi">OptionHandler</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../org/apache/log4j/FileAppender.html#activateOptions()">activateOptions</A></CODE> in class <CODE><A HREF="../../../org/apache/log4j/FileAppender.html" title="class in org.apache.log4j">FileAppender</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
<HR>
<A NAME="subAppend(org.apache.log4j.spi.LoggingEvent)"><!-- --></A><H3>
subAppend</H3>
<PRE>
protected void <B>subAppend</B>(<A HREF="../../../org/apache/log4j/spi/LoggingEvent.html" title="class in org.apache.log4j.spi">LoggingEvent</A> event)</PRE>
<DL>
<DD>This method differentiates DailyRollingFileAppender from its
super class.
<p>Before actually logging, this method will check whether it is
time to do a rollover. If it is, it will schedule the next
rollover time and then rollover.
<P>
<DD><DL>
<DT><B>Overrides:</B><DD><CODE><A HREF="../../../org/apache/log4j/WriterAppender.html#subAppend(org.apache.log4j.spi.LoggingEvent)">subAppend</A></CODE> in class <CODE><A HREF="../../../org/apache/log4j/WriterAppender.html" title="class in org.apache.log4j">WriterAppender</A></CODE></DL>
</DD>
<DD><DL>
</DL>
</DD>
</DL>
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