org.eclipse.emf.ecore.util
Class BasicInvocationDelegate

java.lang.Object
  org.eclipse.emf.ecore.util.BasicInvocationDelegate

All Implemented Interfaces:

EOperation.Internal.InvocationDelegate

public class BasicInvocationDelegate
extends java.lang.Object
implements EOperation.Internal.InvocationDelegate

A basic implementation of the dynamic operation-invocation delegate API. In fact, it is so basic that it isn't much an implementation at all, but merely throws UnsupportedOperationException on every invocation, except for the operations defined for the EObject class. Subclasses should override the dynamicInvoke(InternalEObject, EList) method to not do that.

Since:

2.6

Nested Class Summary

Nested classes/interfaces inherited from interface org.eclipse.emf.ecore.EOperation.Internal.InvocationDelegate

EOperation.Internal.InvocationDelegate.Factory

Field Summary

protected EOperation

eOperation

Constructor Summary

BasicInvocationDelegate(EOperation operation)
Initializes me with the operation that delegates to me.

Method Summary

java.lang.Object

dynamicInvoke(InternalEObject target, EList<?> arguments) Invokes the operation behaviour for the specified target object.

Methods inherited from class java.lang.Object

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

Field Detail

eOperation

protected EOperation eOperation

Constructor Detail

BasicInvocationDelegate

public BasicInvocationDelegate(EOperation operation)

Initializes me with the operation that delegates to me.

Parameters:

operation - my operation

Method Detail

dynamicInvoke

public java.lang.Object dynamicInvoke(InternalEObject target,
                                      EList<?> arguments)
                               throws java.lang.reflect.InvocationTargetException

Description copied from interface: EOperation.Internal.InvocationDelegate

Invokes the operation behaviour for the specified target object.

Specified by:

dynamicInvoke in interface EOperation.Internal.InvocationDelegate

Parameters:

target - the object on which to invoke the operation

arguments - the arguments for the operation parameters (an empty list if the operation has no parameters)

Returns:

the operation's return result, or null if it is a void operation

Throws:

java.lang.reflect.InvocationTargetException - in case of failure to execute the operation behaviour, usually because of an exception