org.axonframework.eventhandling.async

Class SequentialPolicy

java.lang.Object

org.axonframework.eventhandling.async.SequentialPolicy

All Implemented Interfaces:

SequencingPolicy<Object>

public class SequentialPolicy
extends Object
implements SequencingPolicy<Object>

SequencingPolicy that requires serialized handling of all events delivered to an event handler. This is the default policy for event handlers.

Since:

0.3

Author:

Allard Buijze

Constructor Summary

Constructors

Constructor and Description
SequentialPolicy()

Method Summary

Methods

Modifier and Type	Method and Description
Object	getSequenceIdentifierFor(Object task) Returns the sequence identifier for the given event.

Methods inherited from class java.lang.Object

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

Constructor Detail

SequentialPolicy

public SequentialPolicy()

Method Detail

getSequenceIdentifierFor

public Object getSequenceIdentifierFor(Object task)

Returns the sequence identifier for the given event. When two events have the same identifier (as defined by their equals method), they will be executed sequentially. A null value indicates that there are no sequencing requirements for the handling of this event.

Specified by:

getSequenceIdentifierFor in interface SequencingPolicy<Object>

Parameters:

task - the event for which to get the sequencing identifier

Returns:

a sequence identifier for the given event