ubc.cs.JLog.Foundation
Class jPrologServiceThread

java.lang.Object
  java.lang.Thread
      ubc.cs.JLog.Foundation.jPrologServiceThread

All Implemented Interfaces:

Runnable

Direct Known Subclasses:

jAPIConsultThread, jConsultSourceThread, jResetDatabaseThread, jRetryQueryThread

public class jPrologServiceThread
extends Thread

This class provides an independant thread of execution for services using a jPrologService Prolog proof engine.

Version:

%I%, %G%

Author:

Glendon Holst

Nested Class Summary

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

Thread.State, Thread.UncaughtExceptionHandler

Field Summary

protected boolean	allow_release
protected jPrologServices	prolog
protected jPrologServiceBroadcaster	stopped

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

Constructor Summary

jPrologServiceThread(jPrologServices ps)

Method Summary

void	broadcasted_stop()
jPrologServices	getPrologServices()
boolean	isCurrentlyConsulting()
void	printOutput(String s)
void	setAllowRelease(boolean a) Set the thread release state upon completion.
void	setStoppedListeners(jPrologServiceBroadcaster s)

Methods inherited from class java.lang.Thread

activeCount, checkAccess, clone, 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, run, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

Methods inherited from class java.lang.Object

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

Field Detail

prolog

protected jPrologServices prolog

stopped

protected jPrologServiceBroadcaster stopped

allow_release

protected boolean allow_release

Constructor Detail

jPrologServiceThread

public jPrologServiceThread(jPrologServices ps)

Method Detail

getPrologServices

public jPrologServices getPrologServices()

setStoppedListeners

public void setStoppedListeners(jPrologServiceBroadcaster s)

broadcasted_stop

public void broadcasted_stop()

isCurrentlyConsulting

public boolean isCurrentlyConsulting()

setAllowRelease

public void setAllowRelease(boolean a)

Set the thread release state upon completion. By default the thread may release itself from jPrologServices when it no longer needs to use its services. If this thread is being used in sequence (i.e., is being invoked by another worker thread) then it should not initiate release, because the next thread may need Prolog Services.

Parameters:

a - true to allow thread release, false to disallow it.

printOutput

public void printOutput(String s)