Module org.eclipse.persistence.core

Package org.eclipse.persistence.internal.indirection

Class ProxyIndirectionHandler<T>

java.lang.Object

org.eclipse.persistence.internal.indirection.ProxyIndirectionHandler<T>

All Implemented Interfaces:

Serializable, InvocationHandler

public class ProxyIndirectionHandler<T>
extends Object
implements InvocationHandler, Serializable

ProxyIndirectionHandler

Transparently handles EclipseLink indirection for 1:1 relationships through use of the Java Proxy framework in JDK 1.3. This class intercepts messages sent to the proxy object, and instantiates its internal ValueHolder when necessary.

Since:

TopLink 3.0

See Also:

• ProxyIndirectionPolicy
• Serialized Form

Constructor Summary

Constructors

Constructor	Description
ProxyIndirectionHandler()	INTERNAL: Just in here to allow for Serialization.

Method Summary

Modifier and Type	Method	Description
ValueHolderInterface<T>	getValueHolder()	INTERNAL: Get the ValueHolder associated with this handler.
Object	invoke(Object proxy, Method m, Object[] args)	INTERNAL: Handle the method calls on the proxy object.
static <T> Object	newProxyInstance(Class<?> anInterface, Class<?>[] interfaces, ValueHolderInterface<T> valueHolder)	INTERNAL: Utility method to create a new proxy object.
void	setValueHolder(ValueHolderInterface<T> value)	INTERNAL: Set the ValueHolder associated with this handler.

Methods inherited from class java.lang.Object

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

Constructor Details

ProxyIndirectionHandler

public ProxyIndirectionHandler()

INTERNAL: Just in here to allow for Serialization.

Method Details

invoke

public Object invoke(Object proxy,
 Method m,
 Object[] args)
              throws Throwable

INTERNAL: Handle the method calls on the proxy object.

Specified by:

invoke in interface InvocationHandler

Throws:

Throwable

newProxyInstance

public static <T> Object newProxyInstance(Class<?> anInterface,
 Class<?>[] interfaces,
 ValueHolderInterface<T> valueHolder)

INTERNAL: Utility method to create a new proxy object.

getValueHolder

public ValueHolderInterface<T> getValueHolder()

INTERNAL: Get the ValueHolder associated with this handler.

setValueHolder

public void setValueHolder(ValueHolderInterface<T> value)

INTERNAL: Set the ValueHolder associated with this handler.