net.spy.util
Class Promise

java.lang.Object
  net.spy.util.Promise

public abstract class Promise
extends java.lang.Object

A promise, continuation style code for java.

Constructor Summary

Promise()
Get an instance of Promise.

Method Summary

protected abstract java.lang.Object	execute() Do the actual work required to get the Object we're promised.
java.lang.Object	getObject() 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

getObject

public final java.lang.Object getObject()
                                 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 java.lang.Object execute()
                                     throws BrokenPromiseException

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

Throws:

BrokenPromiseException