org.apache.shiro.event.support

Class EventListenerComparator

java.lang.Object

org.apache.shiro.event.support.EventListenerComparator

All Implemented Interfaces:

Comparator<EventListener>

public class EventListenerComparator
extends Object
implements Comparator<EventListener>

Compares two event listeners to determine the order in which they should be invoked when an event is dispatched. The lower the order, the sooner it will be invoked (the higher its precedence). The higher the order, the later it will be invoked (the lower its precedence).

TypedEventListeners have a higher precedence (i.e. a lower order) than standard EventListener instances. Standard EventListener instances have the same order priority.

When both objects being compared are TypedEventListeners, they are ordered according to the rules of the EventClassComparator, using the TypedEventListeners' eventType.

Since:

1.3

Constructor Summary

Constructors

Constructor and Description
EventListenerComparator()

Method Summary

Modifier and Type	Method and Description
int	compare(EventListener a, EventListener b)

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

EventListenerComparator

public EventListenerComparator()

Method Detail

compare

public int compare(EventListener a,
                   EventListener b)

Specified by:

compare in interface Comparator<EventListener>