InvocationHandler is the interface implemented by
the invocation handler of a proxy instance.
Each proxy instance has an associated invocation handler.
When a method is invoked on a proxy instance, the method
invocation is encoded and dispatched to the
method of its invocation handler.
Public Method Summary
public abstract Object invoke (Object proxy, Method method, Object args)
Processes a method invocation on a proxy instance and returns the result. This method will be invoked on an invocation handler when a method is invoked on a proxy instance that it is associated with.
|proxy||the proxy instance that the method was invoked on|
|args||an array of objects containing the values of the
arguments passed in the method invocation on the proxy instance,
- the value to return from the method invocation on the
proxy instance. If the declared return type of the interface
method is a primitive type, then the value returned by
this method must be an instance of the corresponding primitive
wrapper class; otherwise, it must be a type assignable to the
declared return type. If the value returned by this method is
nulland the interface method's return type is primitive, then a
NullPointerExceptionwill be thrown by the method invocation on the proxy instance. If the value returned by this method is otherwise not compatible with the interface method's declared return type as described above, a
ClassCastExceptionwill be thrown by the method invocation on the proxy instance.
|Throwable||the exception to throw from the method
invocation on the proxy instance. The exception's type must be
assignable either to any of the exception types declared in the