com.thoughtworks.proxy.toys.future

Class FutureInvoker

java.lang.Object

com.thoughtworks.proxy.toys.future.FutureInvoker

All Implemented Interfaces:

Invoker, java.io.Serializable

public class FutureInvoker
extends java.lang.Object
implements Invoker

Invoker that implements transparent asynchronous method calls. The invoked method will return immediately with a result that can be hot swapped. This result proxy contains first a null object and will automatically replaced later on when the asynchronous method call returns the correct result.

Since:

1.0

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.concurrent.ExecutorService	executor
private ProxyFactory	proxyFactory
private static long	serialVersionUID
private java.lang.Object	target

Constructor Summary

Constructors

Constructor and Description
FutureInvoker(java.lang.Object target, ProxyFactory proxyFactory, java.util.concurrent.ExecutorService executor) Construct the invoker.

Method Summary

Modifier and Type	Method and Description
java.lang.Object	invoke(java.lang.Object proxy, java.lang.reflect.Method method, java.lang.Object[] args) Invocation of a method of the proxied object.

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

target

private final java.lang.Object target

proxyFactory

private final ProxyFactory proxyFactory

executor

private final java.util.concurrent.ExecutorService executor

Constructor Detail

FutureInvoker

public FutureInvoker(java.lang.Object target,
                     ProxyFactory proxyFactory,
                     java.util.concurrent.ExecutorService executor)

Construct the invoker.

Parameters:

target - the instance that will have its methods called asynchronously

proxyFactory - the proxy factory used to create the proxy for the target instance and all return types of the called methods

executor - the executor used to call the method asynchronously

Since:

1.0

Method Detail

invoke

public java.lang.Object invoke(java.lang.Object proxy,
                               java.lang.reflect.Method method,
                               java.lang.Object[] args)
                        throws java.lang.Throwable

Description copied from interface: Invoker

Invocation of a method of the proxied object.

Specified by:

invoke in interface Invoker

Parameters:

proxy - the proxy instance.

method - the method to invoke.

args - the arguments of the method.

Returns:

the result of the invoked method.

Throws:

java.lang.Throwable - if the invoked method has thrown.