org.axonframework.spring.eventsourcing

Class SpringPrototypeAggregateFactory<T>

java.lang.Object

org.axonframework.spring.eventsourcing.SpringPrototypeAggregateFactory<T>

Type Parameters:

T - The type of aggregate generated by this aggregate factory

All Implemented Interfaces:

AggregateFactory<T>, org.springframework.beans.factory.Aware, org.springframework.beans.factory.BeanNameAware, org.springframework.beans.factory.InitializingBean, org.springframework.context.ApplicationContextAware

public class SpringPrototypeAggregateFactory<T>
extends Object
implements AggregateFactory<T>, org.springframework.beans.factory.InitializingBean, org.springframework.context.ApplicationContextAware, org.springframework.beans.factory.BeanNameAware

AggregateFactory implementation that uses Spring prototype beans to create new uninitialized instances of Aggregates.

Since:

1.2

Author:

Allard Buijze

Constructor Summary

Constructors

Constructor and Description
SpringPrototypeAggregateFactory(String prototypeBeanName) Initializes the factory to create beans instances for the bean with given prototypeBeanName.
SpringPrototypeAggregateFactory(String prototypeBeanName, Map<Class<? extends T>,String> subtypes) Initializes the factory to create beans instances for the bean with given prototypeBeanName and its subtypes.

Method Summary

Modifier and Type	Method and Description
void	afterPropertiesSet()
T	createAggregateRoot(String aggregateIdentifier, DomainEventMessage<?> firstEvent) Instantiate the aggregate root using the given aggregate identifier and first event.
Class<T>	getAggregateType() Returns the type of aggregate this factory creates.
void	setApplicationContext(org.springframework.context.ApplicationContext applicationContext)
void	setBeanName(String beanName)
static <T> SpringPrototypeAggregateFactory<T>	withSubtypeSupport(String prototypeBeanName, Map<Class<? extends T>,String> subtypes) Initializes the factory to create bean instances for the bean with given prototypeBeanName and its subtypes.

Methods inherited from class java.lang.Object

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

Constructor Detail

SpringPrototypeAggregateFactory

public SpringPrototypeAggregateFactory(String prototypeBeanName)

Initializes the factory to create beans instances for the bean with given prototypeBeanName.

Note that the bean should have the prototype scope.

Parameters:

prototypeBeanName - the name of the prototype bean this repository serves.

SpringPrototypeAggregateFactory

public SpringPrototypeAggregateFactory(String prototypeBeanName,
                                       Map<Class<? extends T>,String> subtypes)

Initializes the factory to create beans instances for the bean with given prototypeBeanName and its subtypes.

Note that the bean should have the prototype scope.

Parameters:

prototypeBeanName - the name of the prototype bean this repository serves.

subtypes - the map of subtype of this aggregate to its spring prototype name

Method Detail

withSubtypeSupport

public static <T> SpringPrototypeAggregateFactory<T> withSubtypeSupport(String prototypeBeanName,
                                                                        Map<Class<? extends T>,String> subtypes)

Initializes the factory to create bean instances for the bean with given prototypeBeanName and its subtypes.

Note that the bean should have the prototype scope.

This static factory method is provided as an alternative to avoid warnings and errors on ambiguous constructor resolution when using Spring AOT.

Parameters:

prototypeBeanName - The name of the prototype bean this repository serves.

subtypes - The map of subtype of this aggregate to its spring prototype name.

Returns:

An initialized instance of this factory.

createAggregateRoot

public T createAggregateRoot(String aggregateIdentifier,
                             DomainEventMessage<?> firstEvent)

Description copied from interface: AggregateFactory

Instantiate the aggregate root using the given aggregate identifier and first event. The first event of the event stream is passed to allow the factory to identify the actual implementation type of the aggregate to create. The first event can be either the event that created the aggregate or, when using event sourcing, a snapshot event. In either case, the event should be designed, such that these events contain enough information to deduct the actual aggregate type.

Specified by:

createAggregateRoot in interface AggregateFactory<T>

Parameters:

aggregateIdentifier - the aggregate identifier of the aggregate to instantiate

firstEvent - The first event in the event stream. This is either the event generated during creation of the aggregate, or a snapshot event

Returns:

an aggregate root ready for initialization using a DomainEventStream.

getAggregateType

public Class<T> getAggregateType()

Description copied from interface: AggregateFactory

Returns the type of aggregate this factory creates. All instances created by this factory must be an instanceOf this type.

Specified by:

getAggregateType in interface AggregateFactory<T>

Returns:

The type of aggregate created by this factory

setApplicationContext

public void setApplicationContext(@Nonnull
                                  org.springframework.context.ApplicationContext applicationContext)

Specified by:

setApplicationContext in interface org.springframework.context.ApplicationContextAware

setBeanName

public void setBeanName(@Nonnull
                        String beanName)

Specified by:

setBeanName in interface org.springframework.beans.factory.BeanNameAware

afterPropertiesSet

public void afterPropertiesSet()

Specified by:

afterPropertiesSet in interface org.springframework.beans.factory.InitializingBean