nl.justobjects.pushlet.core
Class EventPullSource

java.lang.Object
  nl.justobjects.pushlet.core.EventPullSource

All Implemented Interfaces:

EventSource, java.lang.Runnable

Direct Known Subclasses:

TestEventPullSources.AEXStocksEventPullSource, TestEventPullSources.PingEventPullSource, TestEventPullSources.PushletStatusEventPullSource, TestEventPullSources.SystemStatusEventPullSource, TestEventPullSources.TemperatureEventPullSource, TestEventPullSources.TestEventPullSource, TestEventPullSources.WebPresentationEventPullSource

public abstract class EventPullSource

extends java.lang.Object

implements EventSource, java.lang.Runnable

ABC for specifc EventPullSources.

Field Summary

private boolean	active
private boolean	alive
private java.lang.Thread	thread
private static int	threadNum

Constructor Summary

EventPullSource()

Method Summary

void	activate() Activate the event generator thread.
protected abstract long	getSleepTime()
boolean	isAlive()
void	passivate() Deactivate the event generator thread.
protected abstract Event	pullEvent()
void	run() Main loop: sleep, generate event and publish.
void	start()
void	stop() Stop the event generator thread.

Methods inherited from class java.lang.Object

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

Field Detail

alive

private volatile boolean alive

active

private volatile boolean active

threadNum

private static int threadNum

thread

private java.lang.Thread thread

Constructor Detail

EventPullSource

public EventPullSource()

Method Detail

getSleepTime

protected abstract long getSleepTime()

pullEvent

protected abstract Event pullEvent()

start

public void start()

isAlive

public boolean isAlive()

stop

public void stop()

Stop the event generator thread.

Specified by:

stop in interface EventSource

activate

public void activate()

Activate the event generator thread.

Specified by:

activate in interface EventSource

passivate

public void passivate()

Deactivate the event generator thread.

Specified by:

passivate in interface EventSource

run

public void run()

Main loop: sleep, generate event and publish.

Specified by:

run in interface java.lang.Runnable