org.axonframework.eventhandling.saga.metamodel

Interface SagaModel<T>

Type Parameters:

T - The saga type

public interface SagaModel<T>

Interface of a model that describes a Saga of type T. Use the SagaModel to obtain associations and event handlers for the Saga.

Method Summary

Modifier and Type	Method and Description
List<SagaMethodMessageHandlingMember<T>>	findHandlerMethods(EventMessage<?> event) Returns a List of event handlers that can handle the given event.
default boolean	hasHandlerMethod(EventMessage<?> eventMessage) Indicates whether the Saga described by this model has a handler for the given eventMessage
SagaMetaModelFactory	modelFactory() Returns the factory that created this model.
Optional<AssociationValue>	resolveAssociation(EventMessage<?> eventMessage) Returns the AssociationValue used to find sagas of type T that can handle the given eventMessage.

Method Detail

resolveAssociation

Optional<AssociationValue> resolveAssociation(EventMessage<?> eventMessage)

Returns the AssociationValue used to find sagas of type T that can handle the given eventMessage. If the saga type does not handle events of this type an empty Optional is returned.

Parameters:

eventMessage - The event to find the association value for

Returns:

Optional of the AssociationValue for the event, or an empty Optional if the saga doesn't handle the event

findHandlerMethods

List<SagaMethodMessageHandlingMember<T>> findHandlerMethods(EventMessage<?> event)

Returns a List of event handlers that can handle the given event.

Parameters:

event - The event to process

Returns:

event message handlers for this event

hasHandlerMethod

default boolean hasHandlerMethod(EventMessage<?> eventMessage)

Indicates whether the Saga described by this model has a handler for the given eventMessage

Parameters:

eventMessage - The message to check the availability of a handler for

Returns:

true if there the Saga has a handler for this message, otherwise false

modelFactory

SagaMetaModelFactory modelFactory()

Returns the factory that created this model.

Returns:

The factory that made this model