org.ref_send.promise
Class Do<P,R>

java.lang.Object
  org.joe_e.Struct
      org.ref_send.promise.Do<P,R>

Type Parameters:

P - parameter type

R - return type

All Implemented Interfaces:

Selfless

public abstract class Do<P,R>
extends Struct

An eventual conditional code block.

Method Summary

abstract R	fulfill(P arg) Notification of a fulfilled argument.
R	reject(java.lang.Exception reason) Notification of a rejected argument.

Methods inherited from class org.joe_e.Struct

equals, hashCode

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Method Detail

fulfill

public abstract R fulfill(P arg)
                   throws java.lang.Exception

Notification of a fulfilled argument.

Parameters:

arg - argument to the code block

Returns:

code block's return value

Throws:

java.lang.Exception - any exception produced by the code block

reject

public R reject(java.lang.Exception reason)
         throws java.lang.Exception

Notification of a rejected argument.

The default implementation throws reason.

Parameters:

reason - reason the code block's argument is not known

Returns:

code block's return value

Throws:

java.lang.Exception - any exception produced by the code block