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Asked: 2026-05-21T18:13:39+00:00

For reasons I won’t get into I’m forced to configure a log4j appender programmatically.

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For reasons I won’t get into I’m forced to configure a log4j appender programmatically.

I want to use a RollingFileAppender so I can control the maximum number of files that are kept around.

Also I want to set this appender to use a TimeBasedRollingPolicy as that will automatically take care of compressing the rolled files.

Problem is I can’t see a way to set this through code. When setting up a RollingFileAppender normally through a properties file you would have:

log4j.appender.LOGFILE.RollingPolicy=org.apache.log4j.rolling.TimeBasedRollingPolicy

There must be a way of setting this …. ? Can anyone shed some light, digging through the javadoc and the basic eclipse-reflection of the classes methods hasn’t revealed the solution 🙁

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1 Answer

  1. Editorial Team

    You might need the log4j companions/extras to use the rolling.RollingFileAppender.

    http://logging.apache.org/log4j/companions/index.html

    EDIT:

    Here is the api reference that lets you set the rolling policy.

    http://logging.apache.org/log4j/companions/apidocs/org/apache/log4j/rolling/RollingFileAppender.html

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