pt.ua.concurrent
Class Actor

java.lang.Object
  java.lang.Thread
      pt.ua.concurrent.Actor

All Implemented Interfaces:

java.lang.Runnable

public class Actor
extends java.lang.Thread

An actor module (object-oriented approach for message passing concurrent programming).

This class implements, in an object-oriented way, the message passing thread communication mechanism.
Important Note: external synchronization is not yet implemented.

This class follows DbC(tm) methodology (Wikipedia). Where possible, contracts are implement with native's Java assert.

Version:

0.5, November 2011, 0.6, November 2012

Author:

Miguel Oliveira e Silva (mos@ua.pt)

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Thread

java.lang.Thread.State, java.lang.Thread.UncaughtExceptionHandler

Field Summary

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

Actor()
Constructs a new Actor (note that its attached thread is not started here).

Method Summary

void	run() The actor's message handling routine.
void	terminate() Terminate te execution of actor.
boolean	terminated() Is the actor terminated?

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getAllStackTraces, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getStackTrace, getState, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Actor

public Actor()

Constructs a new Actor (note that its attached thread is not started here).

Method Detail

terminate

public void terminate()

Terminate te execution of actor. The actor will terminate as soon as its pending queue is empty.

requires: isAlive()

terminated

public boolean terminated()

Is the actor terminated?

Returns:

boolean true if the actor has finished, false otherwise

run

public void run()

The actor's message handling routine. (This method is to be executed only by thread's start method.)

Specified by:

run in interface java.lang.Runnable

Overrides:

run in class java.lang.Thread