org.ref_send.promise
Class Local<T>

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

Type Parameters:

T - referent type

All Implemented Interfaces:

java.io.Serializable, java.lang.reflect.InvocationHandler, Selfless, Promise<T>

public abstract class Local<T>
extends java.lang.Object
implements Promise<T>, java.lang.reflect.InvocationHandler, Selfless, java.io.Serializable

Implementation hook that users should ignore.

An abstract base class for a promise implementation that is scoped to a particular event queue.

See Also:

Serialized Form

Method Summary

abstract T	call() Gets the current referent.
static <T> Do<T,java.lang.Object>	curry(java.lang.reflect.Method method, ConstArray<?> argv) Constructs a pending invocation.
abstract boolean	equals(java.lang.Object x)
abstract int	hashCode()
java.lang.Object	invoke(java.lang.Object proxy, java.lang.reflect.Method method, java.lang.Object[] args) Forwards a Java language invocation.
static java.lang.reflect.Type	parameter(Do<?,?> x) Determines a block's parameter type.

Methods inherited from class java.lang.Object

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

Method Detail

equals

public abstract boolean equals(java.lang.Object x)

Overrides:

equals in class java.lang.Object

hashCode

public abstract int hashCode()

Specified by:

hashCode in interface Selfless

Overrides:

hashCode in class java.lang.Object

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 - each invocation argument

Returns:

eventual reference for the invocation return

Throws:

java.lang.Exception

call

public abstract T call()
                throws java.lang.Exception

Description copied from interface: Promise

Gets the current referent.

For example:

 final Promise<Foo> foo = …
 try {
     foo.call().bar();
 } catch (final Exception reason) {
     // Either there is no referent, or the bar() invocation failed.
     throw reason;
 }
 

Specified by:

call in interface Promise<T>

Throws:

java.lang.Exception - reason the referent is not known

curry

public static <T> Do<T,java.lang.Object> curry(java.lang.reflect.Method method,
                                               ConstArray<?> argv)

Constructs a pending invocation.

Parameters:

method - method to invoke

argv - invocation arguments

parameter

public static java.lang.reflect.Type parameter(Do<?,?> x)

Determines a block's parameter type.

Parameters:

x - block to introspect on

Returns:

x's parameter type