org.gnu.glib
public final class Timer extends Object
Fireable
target object's
fire
method at a specified interval.
For example, here's how an application clock might be implemented, where the application passes in an Label object as its pane:
private final Label clockPane = (Label) glade.getWidget("clockLabel"); private Timer clock = new Timer(1000, // one second new Fireable() { public boolean fire() { String dateStr = DateFormat.getDateInstance() .format(new Date()); clockPane.setText(dateStr); return true; // continue firing } }); clock.start();
Note: a Timer generates events on the application's GUI event queue. It therefore is not accurate for short time periods. It also should only be used to directly fire short/fast methods. Longer methods need to be executed in a separate thread.
See Also: Fireable
Constructor Summary | |
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Timer(int interval, Fireable target)
Create a new Timer object.
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Method Summary | |
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int | getInterval()
Returns the interval associated with this Timer.
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boolean | isRunning()
Returns whether this timer is running.
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void | setInterval(int interval)
Set the interval associated with this Timer.
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void | start()
Start this timer object; that is, begin executing its fire method at its
specified interval. |
void | stop()
Stop this timer object; that is, stop executing its fire method at its
specified interval. |
Parameters: interval
the time period between fire
method executions,
in thousandths of a second. target
the object whose fire() method gets called after the specified
time period elapses.
Throws: IllegalArgumentException if less than one.
Returns: the time period between fire
method executions, in
thousandths of a second.
Returns: true if this timer is currently running.
Parameters: interval
the time period between fire
method executions,
in thousandths of a second.
Throws: IllegalArgumentException if less than one.
fire
method returned false
.