Java Doc for TimerTaskExecutor.java in  » J2EE » spring-framework-2.0.6 » org » springframework » scheduling » timer » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » J2EE » spring framework 2.0.6 » org.springframework.scheduling.timer 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.springframework.scheduling.timer.TimerTaskExecutor

TimerTaskExecutor
public class TimerTaskExecutor implements SchedulingTaskExecutor,InitializingBean,DisposableBean(Code)
org.springframework.core.task.TaskExecutor implementation that uses a single Timer for executing all tasks, effectively resulting in serialized asynchronous execution on a single thread.
author:
   Juergen Hoeller
since:
   2.0
See Also:   java.util.Timer


Field Summary
final protected  Loglogger
     The shared Log instance.

Constructor Summary
public  TimerTaskExecutor()
     Create a new TimerTaskExecutor that needs to be further configured and initialized.
public  TimerTaskExecutor(Timer timer)
     Create a new TimerTaskExecutor for the given Timer .

Method Summary
public  voidafterPropertiesSet()
    
protected  TimercreateTimer()
     Create a new Timer instance.
public  voiddestroy()
     Cancel the Timer on bean factory shutdown, stopping all scheduled tasks.
public  voidexecute(Runnable task)
     Schedules the given Runnable on this executor's Timer instance, wrapping it in a DelegatingTimerTask .
public  booleanprefersShortLivedTasks()
     This task executor prefers short-lived work units.
public  voidsetDelay(int delay)
     Set the delay to use for scheduling tasks passed into the execute method.
public  voidsetTimer(Timer timer)
     Set the Timer to use for this TimerTaskExecutor , for example a shared Timer instance defined by a TimerFactoryBean .

Field Detail
logger
final protected Log logger(Code)
The shared Log instance.




Constructor Detail
TimerTaskExecutor
public TimerTaskExecutor()(Code)
Create a new TimerTaskExecutor that needs to be further configured and initialized.
See Also:   TimerTaskExecutor.setTimer
See Also:   TimerTaskExecutor.afterPropertiesSet



TimerTaskExecutor
public TimerTaskExecutor(Timer timer)(Code)
Create a new TimerTaskExecutor for the given Timer .
Parameters:
  timer - the Timer to wrap
throws:
  IllegalArgumentException - if the supplied Timer is null




Method Detail
afterPropertiesSet
public void afterPropertiesSet()(Code)



createTimer
protected Timer createTimer()(Code)
Create a new Timer instance. Called by afterPropertiesSet if no Timer has been specified explicitly.

Default implementation creates a plain daemon Timer .

If overridden, subclasses must take care to ensure that a non-null Timer is returned from the execution of this method. a new Timer instance
See Also:   TimerTaskExecutor.afterPropertiesSet
See Also:   java.util.Timer.Timer(boolean)




destroy
public void destroy()(Code)
Cancel the Timer on bean factory shutdown, stopping all scheduled tasks.
See Also:   java.util.Timer.cancel



execute
public void execute(Runnable task)(Code)
Schedules the given Runnable on this executor's Timer instance, wrapping it in a DelegatingTimerTask .
Parameters:
  task - the task to be executed
throws:
  IllegalArgumentException - if the supplied Runnable task is null,or if the Timer encapsulated by this instance has not been set, orif the TimerTaskExecutor.setDelay(int) configured delay is negative.



prefersShortLivedTasks
public boolean prefersShortLivedTasks()(Code)
This task executor prefers short-lived work units.



setDelay
public void setDelay(int delay)(Code)
Set the delay to use for scheduling tasks passed into the execute method. Default is 0.
Parameters:
  delay - the delay in milliseconds before the task is to be executed



setTimer
public void setTimer(Timer timer)(Code)
Set the Timer to use for this TimerTaskExecutor , for example a shared Timer instance defined by a TimerFactoryBean .

If not specified, a default Timer instance will be used.
Parameters:
  timer - the Timer to use for this TimerTaskExecutor (may be null)
See Also:   TimerFactoryBean




Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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