Package org.zkoss.lang.reflect
Class FacadeInvoker
- java.lang.Object
-
- org.zkoss.lang.reflect.FacadeInvoker
-
- All Implemented Interfaces:
java.lang.reflect.InvocationHandler
public class FacadeInvoker extends java.lang.Object implements java.lang.reflect.InvocationHandler
The facade invocation handler. Like the facade pattern, this invocation handler is used to facade an object with a set of interfaces.This Invocation handler assumes the object being facaded (a.k.a, the target) has all methods of these interfaces, but it might not implement all of these interfaces directly.
It happens when you need to provide interfaces to classes that come from third parties.
Example:
class A { public void f() {...} } interface I { public void f(); }
Then, you could do:I i = (I)FacadeInvoker.newInstance(new A(), new Class[] {I});
- Author:
- tomyeh
-
-
Constructor Summary
Constructors Modifier Constructor Description protected
FacadeInvoker(java.lang.Object target)
-
Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description java.lang.Object
invoke(java.lang.Object proxy, java.lang.reflect.Method method, java.lang.Object[] args)
static java.lang.Object
newInstance(java.lang.Object target, java.lang.Class[] interfaces)
Creates an object that implements the giving interfaces by wrapping a giving object, target.static java.lang.Object
newInstance(java.lang.Object target, java.lang.Class[] interfaces, java.lang.ClassLoader clsLoader)
Creates an object that implements the giving interfaces by wrapping a giving object, target.
-
-
-
Method Detail
-
newInstance
public static final java.lang.Object newInstance(java.lang.Object target, java.lang.Class[] interfaces, java.lang.ClassLoader clsLoader)
Creates an object that implements the giving interfaces by wrapping a giving object, target.The target must have all methods in all given interfaces, but might not implement all these interfaces.
-
newInstance
public static final java.lang.Object newInstance(java.lang.Object target, java.lang.Class[] interfaces)
Creates an object that implements the giving interfaces by wrapping a giving object, target.A shortcut: newInstance( target, interfaces, Thread.currentThread().getContextClassLoader()).
-
invoke
public java.lang.Object invoke(java.lang.Object proxy, java.lang.reflect.Method method, java.lang.Object[] args) throws java.lang.Throwable
- Specified by:
invoke
in interfacejava.lang.reflect.InvocationHandler
- Throws:
java.lang.Throwable
-
-