Package org.apache.log4j.rolling

Implements various file rolling policies.

See: Description

Interface Summary

Interface	Description
RollingPolicy	A RollingPolicy specifies the actions taken on a logging file rollover.
RolloverDescription	Description of actions needed to complete rollover.
TriggeringPolicy	A TriggeringPolicy controls the conditions under which rollover occurs.

Class Summary

Class	Description
CompositeTriggeringPolicy	CompositeTriggeringPolicy determines if rolling should be triggered by evaluating the current event against a set of triggering policies.
FilterBasedTriggeringPolicy	FilterBasedTriggeringPolicy determines if rolling should be triggered by evaluating the current message against a set of filters.
FixedWindowRollingPolicy	When rolling over, FixedWindowRollingPolicy renames files according to a fixed window algorithm as described below.
RollingFileAppender	RollingFileAppender extends FileAppender to backup the log files depending on RollingPolicy and TriggeringPolicy.
RollingPolicyBase	Implements methods common to most, it not all, rolling policies.
RolloverDescriptionImpl	Description of actions needed to complete rollover.
SizeBasedTriggeringPolicy	SizeBasedTriggeringPolicy looks at size of the file being currently written to.
TimeBasedRollingPolicy	TimeBasedRollingPolicy is both easy to configure and quite powerful.

Package org.apache.log4j.rolling Description

Implements various file rolling policies.

The RollingFileAppender class serves as the linchpin of this package. Its behaviour is controlled by two subcomponents of type RollingPolicy and TriggeringPolicy.