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Class w3c.tools.timers.EventManager
java.lang.Object
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+----java.lang.Thread
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+----w3c.tools.timers.EventManager
- public class EventManager
- extends Thread
- implements EventHandler
This implements an event manager for timer events. Timer events
are a way to have events occur some time in the future. They are an
alternative to using separate threads which issue sleep requests
themselves.
-
EventManager()
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handleTimerEvent(Object, long)
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main(String[])
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recallTimer(Object)
- This recalls a previously registered timer event.
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registerTimer(Event)
- This is like the above registerTimer, except it takes an event
object with the deliver time filled in.
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registerTimer(long, EventHandler, Object)
- registerTimer inserts a new timer event into the queue.
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run()
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stopEventManager()
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EventManager
public EventManager()
registerTimer
public Object registerTimer(long ms,
EventHandler handler,
Object data)
- registerTimer inserts a new timer event into the queue. The
queue is always sorted by time, in increasing order. That is,
things farther into the future are further down in the queue.
ms is milliseconds in the future, handler is the object that
will handle the event, and data is a "rock" that is passed to
the handler to do with what it will.
This returns an opaque object which can be used to recall the
timer before it is delivered.
stopEventManager
public synchronized void stopEventManager()
registerTimer
public synchronized Object registerTimer(Event newEvent)
- This is like the above registerTimer, except it takes an event
object with the deliver time filled in. If deliver time is
before the current time, the event is "immediately" delivered.
Do a binary search to figure out where the event goes.
recallTimer
public synchronized Object recallTimer(Object timer)
- This recalls a previously registered timer event.
run
public void run()
- Overrides:
- run in class Thread
handleTimerEvent
public void handleTimerEvent(Object rock,
long time)
main
public static void main(String args[])
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