LevelRangeFilter

Class Overview

This is a very simple filter based on level matching, which can be used to reject messages with priorities outside a certain range.

The filter admits three options LevelMin, LevelMax and AcceptOnMatch.

If the level of the LoggingEvent is not between Min and Max (inclusive), then DENY is returned.

If the Logging event level is within the specified range, then if AcceptOnMatch is true, ACCEPT is returned, and if AcceptOnMatch is false, NEUTRAL is returned.

If LevelMinw is not defined, then there is no minimum acceptable level (ie a level is never rejected for being too "low"/unimportant). If LevelMax is not defined, then there is no maximum acceptable level (ie a level is never rejected for beeing too "high"/important).

Refer to the setThreshold method available to all appenders extending AppenderSkeleton for a more convenient way to filter out events by level.

Summary

[Expand] Inherited Constants
From class org.apache.log4j.spi.Filter int ACCEPT The log event must be logged immediately without consulting with the remaining filters, if any, in the chain. int DENY The log event must be dropped immediately without consulting with the remaining filters, if any, in the chain. int NEUTRAL This filter is neutral with respect to the log event.

[Expand] Inherited Fields
From class org.apache.log4j.spi.Filter public Filter next This field is deprecated. As of 1.2.12, use getNext() and setNext(Filter) instead

[Expand] Inherited Methods
From class org.apache.log4j.spi.Filter void activateOptions() Usually filters options become active when set. abstract int decide(LoggingEvent event) If the decision is DENY, then the event will be dropped. Filter getNext() Return the pointer to the next filter; void setNext(Filter next) Set the next filter pointer.
From class java.lang.Object Object clone() boolean equals(Object arg0) void finalize() final Class<?> getClass() int hashCode() final void notify() final void notifyAll() String toString() final void wait() final void wait(long arg0, int arg1) final void wait(long arg0)
From interface org.apache.log4j.spi.OptionHandler abstract void activateOptions() Activate the options that were previously set with calls to option setters.