org.nakedobjects.runtime.persistence.objectfactory
Class ObjectFactoryAbstract

java.lang.Object
  org.nakedobjects.runtime.persistence.objectfactory.ObjectFactoryAbstract

All Implemented Interfaces:

Component, SessionScopedComponent, ObjectFactory

Direct Known Subclasses:

ObjectFactoryBasic

public abstract class ObjectFactoryAbstract
extends java.lang.Object
implements ObjectFactory

Abstract adapter for ObjectFactory.

Implementation note: rather than use the *Aware interfaces, we instead look up dependencies from the NakedObjectsContext. This is necessary, for the PersistenceSession at least, because class enhancers may hold a reference to the factory as part of the generated bytecode. Since the PersistenceSession could change over the lifetime of the instance (eg when using the InMemoryObjectStore), we must always look the PersistenceSession from the NakedObjectsContext. The same applies to the ServicesInjector.

In theory it would be possible to cache the SpecificationLoader and inject using SpecificationLoaderAware, but since we are already using the NakedObjectsContext, decided instead to use the same approach throughout.

Nested Class Summary

static class

ObjectFactoryAbstract.Mode

Constructor Summary

ObjectFactoryAbstract()

ObjectFactoryAbstract(ObjectFactoryAbstract.Mode mode)

Method Summary

void	close() Default implementation does nothing.
protected abstract <T> T	doInstantiate(java.lang.Class<T> cls) Hook method for subclasses to override.
protected PersistenceSession	getPersistenceSession()
protected ServicesInjector	getServicesInjector()
protected SpecificationLoader	getSpecificationLoader()
<T> T	instantiate(java.lang.Class<T> cls) Should instantiate the object, and in addition initialize the domain object (for example, inject any services and repositories into it).
void	open() Default implementation does nothing.

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectFactoryAbstract

public ObjectFactoryAbstract()

ObjectFactoryAbstract

public ObjectFactoryAbstract(ObjectFactoryAbstract.Mode mode)

Method Detail

instantiate

public <T> T instantiate(java.lang.Class<T> cls)
              throws ObjectInstantiationException

Description copied from interface: ObjectFactory

Should instantiate the object, and in addition initialize the domain object (for example, inject any services and repositories into it).

Specified by:

instantiate in interface ObjectFactory

Throws:

ObjectInstantiationException

open

public void open()

Default implementation does nothing.

Specified by:

open in interface SessionScopedComponent

close

public void close()

Default implementation does nothing.

Specified by:

close in interface SessionScopedComponent

doInstantiate

protected abstract <T> T doInstantiate(java.lang.Class<T> cls)
                            throws ObjectInstantiationException

Hook method for subclasses to override.

Throws:

ObjectInstantiationException

getSpecificationLoader

protected SpecificationLoader getSpecificationLoader()

getPersistenceSession

protected PersistenceSession getPersistenceSession()

getServicesInjector

protected ServicesInjector getServicesInjector()