org.axonframework.modelling.command.inspection

Class AggregateMemberAnnotatedChildEntityCollectionDefinition

java.lang.Object

org.axonframework.modelling.command.inspection.AbstractChildEntityDefinition

org.axonframework.modelling.command.inspection.AggregateMemberAnnotatedChildEntityCollectionDefinition

All Implemented Interfaces:

ChildEntityDefinition

public class AggregateMemberAnnotatedChildEntityCollectionDefinition
extends AbstractChildEntityDefinition

Implementation of a AbstractChildEntityDefinition that is used to detect Collections of entities (field type assignable to Iterable) annotated with AggregateMember. If such a field is found a ChildEntity is created that delegates to the entities in the annotated collection.

Since:

3.0

Author:

Allard Buijze

Constructor Summary

Constructors

Constructor and Description
AggregateMemberAnnotatedChildEntityCollectionDefinition()

Method Summary

Modifier and Type	Method and Description
protected <T> EntityModel<Object>	extractChildEntityModel(EntityModel<T> declaringEntity, Map<String,Object> attributes, Field field) Extracts the Child Entity contained in the given declaringEntity as an EntityModel.
protected boolean	isFieldTypeSupported(Field field) Check whether the given Field is of a type supported by this definition.
protected <T> Object	resolveCommandTarget(CommandMessage<?> msg, T parent, Field field, EntityModel<Object> childEntityModel) Resolve the target of an incoming CommandMessage to the right Child Entity.
protected <T> Stream<Object>	resolveEventTargets(EventMessage message, T parentEntity, Field field, ForwardingMode eventForwardingMode) Resolve the targets of an incoming EventMessage to the right Child Entities.

Methods inherited from class org.axonframework.modelling.command.inspection.AbstractChildEntityDefinition

createChildDefinition, extractCommandHandlerRoutingKeys

Methods inherited from class java.lang.Object

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

Constructor Detail

AggregateMemberAnnotatedChildEntityCollectionDefinition

public AggregateMemberAnnotatedChildEntityCollectionDefinition()

Method Detail

isFieldTypeSupported

protected boolean isFieldTypeSupported(Field field)

Description copied from class: AbstractChildEntityDefinition

Check whether the given Field is of a type supported by this definition.

Specified by:

isFieldTypeSupported in class AbstractChildEntityDefinition

Parameters:

field - a Field containing a Child Entity

Returns:

true if the type is as required by the implementation and false if it is not

extractChildEntityModel

protected <T> EntityModel<Object> extractChildEntityModel(EntityModel<T> declaringEntity,
                                                          Map<String,Object> attributes,
                                                          Field field)

Description copied from class: AbstractChildEntityDefinition

Extracts the Child Entity contained in the given declaringEntity as an EntityModel. The type of the Child Entity is defined through a key in the provided attributes or based on given Field.

Specified by:

extractChildEntityModel in class AbstractChildEntityDefinition

Type Parameters:

T - the type T of the given declaringEntity EntityModel

Parameters:

declaringEntity - the EntityModel declaring the given field

attributes - a Map containing the AggregateMember attributes

field - the Field containing the Child Entity.

Returns:

the Child Entity contained in the declaringEntity

resolveCommandTarget

protected <T> Object resolveCommandTarget(CommandMessage<?> msg,
                                          T parent,
                                          Field field,
                                          EntityModel<Object> childEntityModel)

Description copied from class: AbstractChildEntityDefinition

Resolve the target of an incoming CommandMessage to the right Child Entity. Returns the Child Entity the msg needs to be routed to.

Specified by:

resolveCommandTarget in class AbstractChildEntityDefinition

Type Parameters:

T - the type T of the given parent Entity

Parameters:

msg - the CommandMessage which is being resolved to a target entity

parent - the parent Entity of type T of this Child Entity

field - the Field containing the Child Entity.

childEntityModel - the EntityModel for the Child Entity

Returns:

the Child Entity which is the target of the incoming CommandMessage.

resolveEventTargets

protected <T> Stream<Object> resolveEventTargets(EventMessage message,
                                                 T parentEntity,
                                                 Field field,
                                                 ForwardingMode eventForwardingMode)

Description copied from class: AbstractChildEntityDefinition

Resolve the targets of an incoming EventMessage to the right Child Entities. Returns a Stream of all the Child Entities the Event Message should be routed to.

Specified by:

resolveEventTargets in class AbstractChildEntityDefinition

Type Parameters:

T - the type T of the given parent Entity

Parameters:

message - the EventMessage to route

parentEntity - the parent Entity of type T of this Child Entity

field - the Field containing the Child Entity

eventForwardingMode - the ForwardingMode used to filter the message to route based on the ForwardingMode implementation

Returns:

a filtered Stream of Child Entity targets for the incoming EventMessage