org.axonframework.messaging.annotation

Class HandlerComparator

java.lang.Object

org.axonframework.messaging.annotation.HandlerComparator

public final class HandlerComparator
extends Object

Comparator used by AnnotatedHandlerInspector to sort MessageHandlingMember entity members.

The ordering among MessageHandlingMembers through this comparator is defined as follows:

1. The MessageHandlingMember.priority(), favoring the largest number
2. The class hierarchy of the MessageHandlingMember.payloadType(), favoring the most specific handler.
3. The parameter count on the actual message handling function, favoring the highest number as the most specific handler.
4. As a final tie breaker, the Executable.toGenericString() of the actual message handling function

If the given MessageHandlingMembers both act on results rather, steps 2 through 4 are reversed.

Since:

3.0

Author:

Allard Buijze

Method Summary

Modifier and Type	Method and Description
static Comparator<MessageHandlingMember<?>>	instance() Returns the singleton comparator managed by the HandlerComparator class.

Methods inherited from class java.lang.Object

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

Method Detail

instance

public static Comparator<MessageHandlingMember<?>> instance()

Returns the singleton comparator managed by the HandlerComparator class.

Returns:

the singleton comparator