org.apache.log4j.rule
Class AndRule

java.lang.Object
  org.apache.log4j.rule.AbstractRule
      org.apache.log4j.rule.AndRule

All Implemented Interfaces:

java.io.Serializable, Rule

public class AndRule
extends AbstractRule

A Rule class implementing a logical 'and'.

Author:

Scott Deboy (sdeboy@apache.org)

See Also:

Serialized Form

Method Summary

boolean	evaluate(org.apache.log4j.spi.LoggingEvent event, java.util.Map matches) Returns true if this implementation of the rule accepts the LoggingEvent, or false if not.
static Rule	getRule(Rule firstParam, Rule secondParam) Get rule.
static Rule	getRule(java.util.Stack stack) Create rule from top two elements of stack.

Methods inherited from class org.apache.log4j.rule.AbstractRule

addPropertyChangeListener, firePropertyChange, firePropertyChange, removePropertyChangeListener

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getRule

public static Rule getRule(java.util.Stack stack)

Create rule from top two elements of stack.

Parameters:

stack - stack of rules.

Returns:

Rule that evaluates true only if both rules are true.

getRule

public static Rule getRule(Rule firstParam,
                           Rule secondParam)

Get rule.

Parameters:

firstParam - first rule.

secondParam - second rule.

Returns:

Rule that evaluates true only if both rules are true.

evaluate

public boolean evaluate(org.apache.log4j.spi.LoggingEvent event,
                        java.util.Map matches)

Returns true if this implementation of the rule accepts the LoggingEvent, or false if not.

What True/False means can be client-specific.

Parameters:

event - LoggingEvent this instance will evaluate

matches - a Map of event field keys to Sets of matching strings (may be null) which will be updated during execution of this method to include field and string matches based on the rule evaluation results

Returns:

true if this Rule instance accepts the event, otherwise false.