org.rosuda.javaGD
Class LocatorSync

java.lang.Object
  org.rosuda.javaGD.LocatorSync

public class LocatorSync
extends java.lang.Object

a simple synchronization class that can be used by a separate thread to wake JavaGD from waiting for a locator result. The waiting thread calls waitForAction() which returns only after another thread calls triggerAction(double[]).

Constructor Summary

LocatorSync()

Method Summary

void	triggerAction(double[] result) this methods awakens waitForAction().
double[]	waitForAction() this internal method waits until triggerAction(double[]) is called by another thread.

Methods inherited from class java.lang.Object

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

Constructor Detail

LocatorSync

public LocatorSync()

Method Detail

waitForAction

public double[] waitForAction()

this internal method waits until triggerAction(double[]) is called by another thread. It is implemented by using Object.wait() and checking notificationArrived.

Returns:

result supplied when triggerAction(double[]) was called - essentially the retuls to be returned by locator

triggerAction

public void triggerAction(double[] result)

this methods awakens waitForAction(). It is implemented by setting notificationArrived to true, setting locResult to the passed result and finally calling Object.notifyAll().

Parameters:

result - result to pass to waitForAction()