net.spy.util
Class Promise<T>

java.lang.Object
  net.spy.util.Promise<T>

public abstract class Promise<T>
extends java.lang.Object

A promise, continuation style code for java.

Constructor Summary

Promise()
Get an instance of Promise.

Method Summary

protected abstract T	execute() Do the actual work required to get the Object we're promised.
T	get() Get the object.
java.lang.String	toString() Print me.

Methods inherited from class java.lang.Object

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

Constructor Detail

Promise

public Promise()

Get an instance of Promise.

Method Detail

get

public final T get()
            throws BrokenPromiseException

Get the object.

Returns:

the Object we were promised.

Throws:

BrokenPromiseException - if there's a problem getting what we were promised.

toString

public java.lang.String toString()

Print me.

Overrides:

toString in class java.lang.Object

execute

protected abstract T execute()
                      throws BrokenPromiseException

Do the actual work required to get the Object we're promised.

Throws:

BrokenPromiseException