彻底理解Spring的定制任务 - 编程入门网
作者 佚名技术
来源 NET编程
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发布时间 2012-06-22
| ons,in contrast to Quartz which * instantiates a new Job for each execution. * * @author Juergen Hoeller * @since 19.02.2004 * @see java.util.TimerTask * @see java.util.Timer#schedule(TimerTask,long,long) * @see java.util.Timer#scheduleAtFixedRate(TimerTask,long,long) */ public class ScheduledTimerTask { private TimerTask timerTask; private long delay = 0 ; private long period = 0 ; private boolean fixedRate = false ; /** * Create a new ScheduledTimerTask, * to be populated via bean properties. * @see #setTimerTask * @see #setDelay * @see #setPeriod * @see #setFixedRate */ public ScheduledTimerTask() { } /** * Create a new ScheduledTimerTask,with default * one-time execution without delay. * @param timerTask the TimerTask to schedule */ public ScheduledTimerTask(TimerTask timerTask) { this .timerTask = timerTask; } /** * Create a new ScheduledTimerTask,with default * one-time execution with the given delay. * @param timerTask the TimerTask to schedule * @param delay the delay before starting the task for the first time (ms) */ public ScheduledTimerTask(TimerTask timerTask,long delay) { this .timerTask = timerTask; this .delay = delay; } /** * Create a new ScheduledTimerTask. * @param timerTask the TimerTask to schedule * @param delay the delay before starting the task for the first time (ms) * @param period the period between repeated task executions (ms) * @param fixedRate whether to schedule as fixed-rate execution */ public ScheduledTimerTask(TimerTask timerTask,long delay,long period, boolean fixedRate) { this .timerTask = timerTask; this .delay = delay; this .period = period; this .fixedRate = fixedRate; } /** * Create a new ScheduledTimerTask,with default * one-time execution without delay. * @param timerTask the Runnable to schedule as TimerTask */ public ScheduledTimerTask(Runnable timerTask) { setRunnable(timerTask); } /** * Create a new ScheduledTimerTask,with default * one-time execution with the given delay. * @param timerTask the Runnable to schedule as TimerTask * @param delay the delay before starting the task for the first time (ms) */ public ScheduledTimerTask(Runnable timerTask,long delay) { setRunnable(timerTask); this .delay = delay; } /** * Create a new ScheduledTimerTask. * @param timerTask the Runnable to schedule as TimerTask * @param delay the delay before starting the task for the first time (ms) * @param period the period between repeated task executions (ms) * @param fixedRate whether to schedule as fixed-rate execution */ public ScheduledTimerTask(Runnable timerTask,long delay,long period, boolean fixedRate) { setRunnable(timerTask); this .delay = delay; this .period = period; this .fixedRate = fixedRate; } /** * Set the Runnable to schedule as TimerTask. * @see DelegatingTimerTask */ public void setRunnable(Runnable timerTask) { this .timerTask = new DelegatingTimerTask(timerTask); } /** * Set the TimerTask to schedule. */ public void setTimerTask(TimerTask timerTask) { this . |
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