com.google.common.reflect
Class AbstractInvocationHandler

java.lang.Object
  com.google.common.reflect.AbstractInvocationHandler

All Implemented Interfaces:

InvocationHandler

@Beta
public abstract class AbstractInvocationHandler
extends Object
implements InvocationHandler

Abstract implementation of InvocationHandler that handles Object.equals(java.lang.Object), Object.hashCode() and Object.toString().

Since:

12.0

Author:

Ben Yu

Constructor Summary

AbstractInvocationHandler()

Method Summary

protected abstract Object	handleInvocation(Object proxy, Method method, Object[] args) invoke(java.lang.Object, java.lang.reflect.Method, java.lang.Object[]) delegates to this method upon any method invocation on the proxy instance, except Object.equals(java.lang.Object), Object.hashCode() and Object.toString().
Object	invoke(Object proxy, Method method, Object[] args)
String	toString() The dynamic proxies' Object.toString() will delegate to this method.

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractInvocationHandler

public AbstractInvocationHandler()

Method Detail

invoke

public final Object invoke(Object proxy,
                           Method method,
                           @Nullable
                           Object[] args)
                    throws Throwable

Object.equals(java.lang.Object), Object.hashCode() are implemented according to referential equality (the default behavior of Object). Object.toString() delegates to toString() that can be overridden by subclasses.

Specified by:

invoke in interface InvocationHandler

Throws:

Throwable

handleInvocation

protected abstract Object handleInvocation(Object proxy,
                                           Method method,
                                           Object[] args)
                                    throws Throwable

invoke(java.lang.Object, java.lang.reflect.Method, java.lang.Object[]) delegates to this method upon any method invocation on the proxy instance, except Object.equals(java.lang.Object), Object.hashCode() and Object.toString(). The result will be returned as the proxied method's return value.

Unlike invoke(java.lang.Object, java.lang.reflect.Method, java.lang.Object[]), args will never be null. When the method has no parameter, an empty array is passed in.

Throws:

Throwable

toString

public String toString()

The dynamic proxies' Object.toString() will delegate to this method. Subclasses can override this to provide custom string representation of the proxies.

Overrides:

toString in class Object