Coverage Report - palmed.edit.scrollbar.RepeatableTimer

Classes in this Package	Line Coverage	Branch Coverage	Complexity
RepeatableTimer	0%	0%	1.6666666666666667;1,667

1		/**
2		* Redistribution and use in source and binary forms, with or without
3		* modification, are permitted provided that the following conditions are
4		* met :
5		*
6		* . Redistributions of source code must retain the above copyright
7		* notice, this list of conditions and the following disclaimer.
8		*
9		* . Redistributions in binary form must reproduce the above copyright
10		* notice, this list of conditions and the following disclaimer in the
11		* documentation and/or other materials provided with the distribution.
12		*
13		* . The name of the author may not be used to endorse or promote products
14		* derived from this software without specific prior written permission.
15		*
16		* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17		* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18		* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19		* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
20		* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21		* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22		* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23		* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24		* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
25		* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26		* POSSIBILITY OF SUCH DAMAGE.
27		*
28		* $Id$
29		*/
30
31		package palmed.edit.scrollbar;
32
33		import java.util.Timer;
34		import java.util.TimerTask;
35
36		/**
37		* This class preventS a timer to be reinitialized when already running.
38		*
39		* @author Mathieu Champlon
40		* @version $Revision$ $Date$
41		*/
42		public final class RepeatableTimer
43		{
44		/**
45		* The delay to start the timer when activated.
46		*/
47		private static final int DELAY = 500;
48		/**
49		* The period to trigger the timer event.
50		*/
51		private static final int PERIOD = 100;
52		/**
53		* The timer.
54		*/
55		private final Timer timer_;
56		/**
57		* The scrollbar timer task.
58		*/
59		private TimerTask task_;
60
61		/**
62		* Create a scrolling timer.
63		*/
64		public RepeatableTimer()
65	0	{
66	0	timer_ = new Timer();
67	0	}
68
69		/**
70		* Start the timer.
71		* <p>
72		* Calling this method again without calling stop has no effect.
73		*
74		* @param task the task to execute
75		*/
76		public void start( final TimerTask task )
77		{
78	0	if( task_ == null )
79		{
80	0	task_ = task;
81	0	timer_.scheduleAtFixedRate( task_, DELAY, PERIOD );
82		}
83	0	}
84
85		/**
86		* Stop the timer.
87		* <p>
88		* Calling this method twice has no effect.
89		*/
90		public void stop()
91		{
92	0	if( task_ != null )
93	0	task_.cancel();
94	0	task_ = null;
95	0	}
96		}