spin.off

Class ListenerSpinOver

java.lang.Object

spin.Evaluator

spin.off.ListenerSpinOver

public class ListenerSpinOver
extends Evaluator

An evaluator for spin-off that automatically spins-over all arguments of a SpinOffEvaluator if their corresponding parameter types are subinterfaces of java.util.EventListener.
Use an instance of this class on construction of a Spin object or install it globally by calling the static method:

 Spin.setDefaultOffEvaluator(new ListenerSpinOver());
 

See Also:

isListenerAdditionOrRemoval(java.lang.reflect.Method), isListener(java.lang.Class)

Constructor Summary

Constructors

Constructor and Description
ListenerSpinOver() Constructor.
ListenerSpinOver(Evaluator evaluator) Constructor.

Method Summary

Modifier and Type	Method and Description
void	evaluate(Invocation invocation) Evaluate the given invocation.
protected boolean	isListener(Class type) Test if the given class is a listener subinterface.
protected boolean	isListenerAdditionOrRemoval(Method method) Test if the given method is a listener addition or removal.
protected Object	spinOver(Object object) Spin-over the given object.

Methods inherited from class java.lang.Object

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

Constructor Detail

ListenerSpinOver

public ListenerSpinOver()

Constructor.

ListenerSpinOver

public ListenerSpinOver(Evaluator evaluator)

Constructor.

Parameters:

evaluator - the evaluator to wrap

Method Detail

evaluate

public void evaluate(Invocation invocation)
              throws Throwable

Description copied from class: Evaluator

Evaluate the given invocation.

Specified by:

evaluate in class Evaluator

Parameters:

invocation - invocation to evaluate

Throws:

Throwable

isListenerAdditionOrRemoval

protected boolean isListenerAdditionOrRemoval(Method method)

Test if the given method is a listener addition or removal. For this the methods name must obey the name pattern (add|remove).*Listener.

Parameters:

method - method to test

Returns:

true if method obeys the name pattern of listener addition or removal

isListener

protected boolean isListener(Class type)

Test if the given class is a listener subinterface.

Parameters:

type - class to test

Returns:

true if the class is an sub-interface of java.util.EventListener

spinOver

protected Object spinOver(Object object)

Spin-over the given object.

Parameters:

object - object to spin-over

Returns:

Spin proxy