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BasicLazyInitializer.javaAPI DocHibernate 3.2.53384Fri Feb 03 15:15:20 GMT 2006org.hibernate.proxy.pojo

BasicLazyInitializer

public abstract class BasicLazyInitializer extends org.hibernate.proxy.AbstractLazyInitializer
Lazy initializer for POJOs
author
Gavin King

Fields Summary
protected static final Object
INVOKE_IMPLEMENTATION
protected Class
persistentClass
protected Method
getIdentifierMethod
protected Method
setIdentifierMethod
protected boolean
overridesEquals
private Object
replacement
protected org.hibernate.type.AbstractComponentType
componentIdType
Constructors Summary
protected BasicLazyInitializer(String entityName, Class persistentClass, Serializable id, Method getIdentifierMethod, Method setIdentifierMethod, org.hibernate.type.AbstractComponentType componentIdType, org.hibernate.engine.SessionImplementor session)


	 
			 
	         
	         
	         
	         
	         
	          
		super(entityName, id, session);
		this.persistentClass = persistentClass;
		this.getIdentifierMethod = getIdentifierMethod;
		this.setIdentifierMethod = setIdentifierMethod;
		this.componentIdType = componentIdType;
		overridesEquals = ReflectHelper.overridesEquals(persistentClass);
Methods Summary
public final java.lang.ClassgetPersistentClass()

		return persistentClass;
private java.lang.ObjectgetReplacement()


		final SessionImplementor session = getSession();
		if ( isUninitialized() && session != null && session.isOpen()) {
			final EntityKey key = new EntityKey(
					getIdentifier(),
			        session.getFactory().getEntityPersister( getEntityName() ),
			        session.getEntityMode()
				);
			final Object entity = session.getPersistenceContext().getEntity(key);
			if (entity!=null) setImplementation( entity );
		}

		if ( isUninitialized() ) {
			if (replacement==null) {
				replacement = serializableProxy();
			}
			return replacement;
		}
		else {
			return getTarget();
		}
protected final java.lang.Objectinvoke(java.lang.reflect.Method method, java.lang.Object[] args, java.lang.Object proxy)


		String methodName = method.getName();
		int params = args.length;

		if ( params==0 ) {

			if ( "writeReplace".equals(methodName) ) {
				return getReplacement();
			}
			else if ( !overridesEquals && "hashCode".equals(methodName) ) {
				return new Integer( System.identityHashCode(proxy) );
			}
			else if ( isUninitialized() && method.equals(getIdentifierMethod) ) {
				return getIdentifier();
			}

			else if ( "getHibernateLazyInitializer".equals(methodName) ) {
				return this;
			}

		}
		else if ( params==1 ) {

			if ( !overridesEquals && "equals".equals(methodName) ) {
				return args[0]==proxy ? Boolean.TRUE : Boolean.FALSE;
			}
			else if ( method.equals(setIdentifierMethod) ) {
				initialize();
				setIdentifier( (Serializable) args[0] );
				return INVOKE_IMPLEMENTATION;
			}

		}

		//if it is a property of an embedded component, invoke on the "identifier"
		if ( componentIdType!=null && componentIdType.isMethodOf(method) ) {
			return method.invoke( getIdentifier(), args );
		}

		// otherwise:
		return INVOKE_IMPLEMENTATION;
protected abstract java.lang.ObjectserializableProxy()