/************************************************************************** * Parts copyright (c) 2001 by Punch Telematix. All rights reserved. * * Parts copyright (c) 2009 by /k/ Embedded Java Solutions. * * All rights reserved. * * * * Redistribution and use in source and binary forms, with or without * * modification, are permitted provided that the following conditions * * are met: * * 1. Redistributions of source code must retain the above copyright * * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * * notice, this list of conditions and the following disclaimer in the * * documentation and/or other materials provided with the distribution. * * 3. Neither the name of Punch Telematix or of /k/ Embedded Java Solutions* * nor the names of other contributors may be used to endorse or promote* * products derived from this software without specific prior written * * permission. * * * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED * * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * * IN NO EVENT SHALL PUNCH TELEMATIX, /K/ EMBEDDED JAVA SOLUTIONS OR OTHER * * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * **************************************************************************/ package java.util; public abstract class TimerTask implements Runnable { /** ** used by the timerthread to store all needed information... */ long period; boolean fixed; /** ** internal state of the task */ long startTime = -1; boolean cancelled; boolean absolute; long savedoffset; protected TimerTask(){} public boolean cancel(){ if(cancelled){ return false; } cancelled = true; return startTime != -1; } public abstract void run(); public long scheduledExecutionTime(){ return startTime; } }