org.axonframework.eventsourcing.annotation

Class AbstractAnnotatedEntity

java.lang.Object

org.axonframework.eventsourcing.AbstractEventSourcedEntity

org.axonframework.eventsourcing.annotation.AbstractAnnotatedEntity

All Implemented Interfaces:

EventSourcedEntity

public abstract class AbstractAnnotatedEntity
extends AbstractEventSourcedEntity

Convenience super type for entities (other than aggregate roots) that have their event handler methods annotated with the EventHandler annotation.

Note that each entity receives all events applied in the entire aggregate. Entities are responsible for filtering out the actual events to take action on.

If this entity is a child of another AbstractAnnotatedEntity or AbstractAnnotatedAggregateRoot, the field that this entity is stored in should be annotated with EventSourcedMember. Alternatively, the AbstractEventSourcedEntity.getChildEntities() or AbstractEventSourcedAggregateRoot.getChildEntities() should return a collection containing this entity instance.

Since:

0.7

Author:

Allard Buijze

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractAnnotatedEntity() Default constructor.

Method Summary

Methods

Modifier and Type	Method and Description
protected ParameterResolverFactory	createParameterResolverFactory() Creates (or returns) a ParameterResolverFactory which is used by this aggregate root to resolve the parameters for @EventSourcingHandler annotated methods.
protected Collection<EventSourcedEntity>	getChildEntities() Returns a collection of event sourced entities directly referenced by this entity.
protected void	handle(DomainEventMessage event) Calls the appropriate handler method with the provided event.

Methods inherited from class org.axonframework.eventsourcing.AbstractEventSourcedEntity

apply, apply, getAggregateRoot, handleRecursively, registerAggregateRoot

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractAnnotatedEntity

protected AbstractAnnotatedEntity()

Default constructor.

Method Detail

handle

protected void handle(DomainEventMessage event)

Calls the appropriate handler method with the provided event.

Specified by:

handle in class AbstractEventSourcedEntity

Parameters:

event - The event to handle

See Also:

EventSourcingHandler, EventHandler

getChildEntities

protected Collection<EventSourcedEntity> getChildEntities()

Description copied from class: AbstractEventSourcedEntity

Returns a collection of event sourced entities directly referenced by this entity. May return null or an empty list to indicate no child entities are available. The collection may also contain null values.

Specified by:

getChildEntities in class AbstractEventSourcedEntity

Returns:

a list of event sourced entities contained in this aggregate

createParameterResolverFactory

protected ParameterResolverFactory createParameterResolverFactory()

Creates (or returns) a ParameterResolverFactory which is used by this aggregate root to resolve the parameters for @EventSourcingHandler annotated methods.

This implementation uses the parameter resolver of the aggregate root. This method may be overridden to alter this behavior.

Returns:

the parameter resolver with which to resolve parameters for event handler methods.