org.ref_send.promise
Class Rejected<T>

java.lang.Object
  org.ref_send.promise.Rejected<T>

Type Parameters:

T - referent type

All Implemented Interfaces:

java.io.Serializable, java.lang.reflect.InvocationHandler, Immutable, Powerless, Selfless, Promise<T>, Volatile<T>, Record

public final class Rejected<T>
extends java.lang.Object
implements Promise<T>, java.lang.reflect.InvocationHandler, Powerless, Selfless, Record, java.io.Serializable

A rejected promise.

See Also:

Serialized Form

Field Summary

java.lang.Exception

reason reason for rejecting the promise

Constructor Summary

Rejected(java.lang.Exception reason)
Construct an instance.

Method Summary

T	_(java.lang.Class type) Creates a rejected reference.
T	cast() Throws the reason.
boolean	equals(java.lang.Object x) Is the given object the same?
int	hashCode() Calculates the hash code.
java.lang.Object	invoke(java.lang.Object proxy, java.lang.reflect.Method method, java.lang.Object[] args) Forwards a Java language invocation.

Methods inherited from class java.lang.Object

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

Field Detail

reason

public final java.lang.Exception reason

reason for rejecting the promise

Constructor Detail

Rejected

public Rejected(java.lang.Exception reason)

Construct an instance.

Parameters:

reason - reason

Method Detail

equals

public boolean equals(java.lang.Object x)

Is the given object the same?

Overrides:

equals in class java.lang.Object

Parameters:

x - compared to object

Returns:

true if the same, else false

hashCode

public int hashCode()

Calculates the hash code.

Specified by:

hashCode in interface Selfless

Overrides:

hashCode in class java.lang.Object

cast

public T cast()
       throws java.lang.Exception

Throws the reason.

Specified by:

cast in interface Volatile<T>

Throws:

java.lang.Exception - reason

invoke

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

Forwards a Java language invocation.

Specified by:

invoke in interface java.lang.reflect.InvocationHandler

Parameters:

proxy - eventual reference

method - method to invoke

args - invocation arguments

Returns:

eventual reference for the invocation return

Throws:

java.lang.Exception - problem invoking an Object method

java.lang.Error - method return cannot be eventualized

_

public T _(java.lang.Class type)

Creates a rejected reference.

Parameters:

type - referent type, MUST be an allowed proxy type

Throws:

java.lang.Error - invalid type argument