orc.lib.state
Class Ref

java.lang.Object
  orc.runtime.values.Value
      orc.runtime.sites.Site
          orc.runtime.sites.EvalSite
              orc.lib.state.Ref

All Implemented Interfaces:

Callable

public class Ref
extends EvalSite

Author:

dkitchin Rewritable mutable reference. The reference can be initialized with a value, or left initially empty. Read operations block if the reference is empty. Write operatons always succeed.

Nested Class Summary

static class

Ref.RefInstance

Field Summary

Fields inherited from class orc.runtime.values.Value

futureNotReady

Constructor Summary

Ref()

Method Summary

java.lang.Object	evaluate(Args args)
Type	type()

Methods inherited from class orc.runtime.sites.EvalSite

callSite

Methods inherited from class orc.runtime.sites.Site

accept, createCall

Methods inherited from class orc.runtime.values.Value

forceArg, forceCall, signal, write

Methods inherited from class java.lang.Object

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

Constructor Detail

Ref

public Ref()

Method Detail

evaluate

public java.lang.Object evaluate(Args args)

Specified by:

evaluate in class EvalSite

type

public Type type()
          throws TypeException

Overrides:

type in class Site

Throws:

TypeException