org.axonframework.eventsourcing

Class GenericAggregateFactory<T>

java.lang.Object

org.axonframework.eventsourcing.AbstractAggregateFactory<T>

org.axonframework.eventsourcing.GenericAggregateFactory<T>

Type Parameters:

T - The type of aggregate this factory creates

All Implemented Interfaces:

AggregateFactory<T>

public class GenericAggregateFactory<T>
extends AbstractAggregateFactory<T>

Aggregate factory that uses a convention to create instances of aggregates. The type must declare a no-arg constructor accepting.

If the constructor is not accessible (not public), and the JVM's security setting allow it, the GenericAggregateFactory will try to make it accessible. If that doesn't succeed, an exception is thrown.

Since:

0.7

Author:

Allard Buijze

Constructor Summary

Constructors

Constructor and Description
GenericAggregateFactory(Class<T> aggregateType) Initialize the AggregateFactory for creating instances of the given aggregateType.

Method Summary

Modifier and Type	Method and Description
protected T	doCreateAggregate(String aggregateIdentifier, DomainEventMessage firstEvent) Create an uninitialized Aggregate instance with the given aggregateIdentifier.

Methods inherited from class org.axonframework.eventsourcing.AbstractAggregateFactory

createAggregateRoot, getAggregateType, postProcessInstance

Methods inherited from class java.lang.Object

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

Constructor Detail

GenericAggregateFactory

public GenericAggregateFactory(Class<T> aggregateType)

Initialize the AggregateFactory for creating instances of the given aggregateType.

Parameters:

aggregateType - The type of aggregate this factory creates instances of.

Throws:

IncompatibleAggregateException - if the aggregate constructor throws an exception, or if the JVM security settings prevent the GenericAggregateFactory from calling the constructor.

Method Detail

doCreateAggregate

protected T doCreateAggregate(String aggregateIdentifier,
                              DomainEventMessage firstEvent)

Create an uninitialized Aggregate instance with the given aggregateIdentifier. The given firstEvent can be used to define the requirements of the aggregate to create.

The given firstEvent is never a snapshot event.

Specified by:

doCreateAggregate in class AbstractAggregateFactory<T>

Parameters:

aggregateIdentifier - The identifier of the aggregate to create

firstEvent - The first event in the Event Stream of the Aggregate

Returns:

The aggregate instance to initialize with the Event Stream

Throws:

IncompatibleAggregateException - if the aggregate constructor throws an exception, or if the JVM security settings prevent the GenericAggregateFactory from calling the constructor.