Uses of Class org.apache.log4j.FileAppender

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Uses of Class
org.apache.log4j.FileAppender

Uses of FileAppender in org.apache.log4j

Subclasses of FileAppender in org.apache.log4j

class CompositeRollingAppender
          CompositeRollingAppender combines RollingFileAppender and DailyRollingFileAppender
It can function as either or do both at the same time (making size based rolling files like RollingFileAppender until a data/time boundary is crossed at which time it rolls all of those files as per the DailyRollingFileAppender) based on the setting for rollingStyle.

To use CompositeRollingAppender to roll log files as they reach a certain size (like RollingFileAppender), set rollingStyle=1 (@see config.size)
To use CompositeRollingAppender to roll log files at certain time intervals (daily for example), set rollingStyle=2 and a datePattern (@see config.time)
To have CompositeRollingAppender roll log files at a certain size AND rename those according to time intervals, set rollingStyle=3 (@see config.composite)

class DailyFileAppender
          DailyFileAppender extends FileAppender to use filenames formatted with date/time information.

class DailyRollingFileAppender
          DailyRollingFileAppender extends FileAppender so that the underlying file is rolled over at a user chosen frequency.

class RollingFileAppender
          RollingFileAppender extends FileAppender to backup the log files when they reach a certain size.