RollingFileAppender extends log4cxx::FileAppender to backup the log files depending on RollingPolicy and TriggeringPolicy. 
To be of any use, a RollingFileAppender instance must have both a RollingPolicy and a TriggeringPolicy set up. However, if its RollingPolicy also implements the TriggeringPolicy interface, then only the former needs to be set up. For example, TimeBasedRollingPolicy acts both as a RollingPolicy and a TriggeringPolicy.
RollingFileAppender can be configured programattically or using log4cxx::xml::DOMConfigurator. Here is a sample configration file:
<?xml version="1.0" encoding="UTF-8" ?>
        <!DOCTYPE log4j:configuration>
<log4j:configuration debug="true">
          <appender name="ROLL" class="org.apache.log4j.rolling.RollingFileAppender">
            <rollingPolicy class="org.apache.log4j.rolling.TimeBasedRollingPolicy">
              <param name="FileNamePattern" value="/wombat/foo.d{yyyy-MM}.gz"/>
            </rollingPolicy>
            <layout class="org.apache.log4j.PatternLayout">
              <param name="ConversionPattern" value="c{1} - mn"/>
            </layout>
          </appender>
          <root">
            <appender-ref ref="ROLL"/>
          </root>
        </log4j:configuration>
        This configuration file specifies a monthly rollover schedule including automatic compression of the archived files. See TimeBasedRollingPolicy for more details.
| Public Member Functions | |
| RollingFileAppender () | |
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