org.perfectjpattern.core.extras.delegate
Class AbstractDelegator.DelegateProxy

java.lang.Object
  org.perfectjpattern.core.extras.delegate.AbstractDelegator.DelegateProxy

All Implemented Interfaces:

InvocationHandler, IDelegate

Enclosing class:

AbstractDelegator<I>

protected class AbstractDelegator.DelegateProxy
extends Object
implements IDelegate, InvocationHandler

Constructor Summary

AbstractDelegator.DelegateProxy(Object aTarget, Class aTargetClass, String aMethodName, AbstractDelegator aTemplate)
Constructs a DelegateProxy supplying a Class passing in types not template.

Method Summary

protected Method	getMethod() Returns the method.
protected Object	getTarget() Returns the target Object.
Object	invoke(Object... anArguments) Returns the Result of the target call; primitive types are wrapped; may return void result.
Object	invoke(Object aProxy, Method aMethod, Object[] anArguments)
protected void	validateArgs(Object[] anArguments, Class[] anExpectedArguments) Validate actual arguments to match those expected from the Delegate type.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractDelegator.DelegateProxy

public AbstractDelegator.DelegateProxy(Object aTarget,
                                       Class aTargetClass,
                                       String aMethodName,
                                       AbstractDelegator aTemplate)
                                throws UnsupportedOperationException

Constructs a DelegateProxy supplying a Class passing in types not template.

Parameters:

aTarget -

aTargetClass -

aMethodName -

aTemplate -

Throws:

UnsupportedOperationException

Method Detail

invoke

public Object invoke(Object aProxy,
                     Method aMethod,
                     Object[] anArguments)

Specified by:

invoke in interface InvocationHandler

invoke

public Object invoke(Object... anArguments)
              throws IllegalArgumentException,
                     UnsupportedOperationException

Returns the Result of the target call; primitive types are wrapped; may return void result. Executes the target method using the input arguments and returns the appropriate result if any.

Specified by:

invoke in interface IDelegate

Parameters:

anArguments - List of input arguments.

Returns:

Result of the target call; primitive types are wrapped; may return void result.

Throws:

IllegalArgumentException

UnsupportedOperationException

validateArgs

protected void validateArgs(Object[] anArguments,
                            Class[] anExpectedArguments)
                     throws IllegalArgumentException

Validate actual arguments to match those expected from the Delegate type.

Parameters:

anArguments - Arguments to validate

anExpectedArguments - Expected arguments signature

Throws:

IllegalArgumentException - 'anExpectedArguments' must not be null

IllegalArgumentException - Delegator required 'N' arguments

IllegalArgumentException - Argument 'i' must be of type 'X'

getMethod

protected Method getMethod()

Returns the method.

Returns:

Method.

getTarget

protected Object getTarget()

Returns the target Object.

Returns:

Target Object.