OpenSymphony - SimpleTimeBroker (Quartz Enterprise Job Scheduler API

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org.quartz.simpl
Class SimpleTimeBroker

java.lang.Object
  org.quartz.simpl.SimpleTimeBroker

All Implemented Interfaces:: TimeBroker

public class SimpleTimeBroker
extends Object
implements TimeBroker
extends Object
implements TimeBroker

The interface to be implemented by classes that want to provide a mechanism by which the QuartzScheduler can reliably determine the current time.

In general, the default implementation of this interface (SimpleTimeBroker- which simply uses System.getCurrentTimeMillis() )is sufficient. However situations may exist where this default scheme is lacking in its robustsness - especially when Quartz is used in a clustered configuration. For example, if one or more of the machines in the cluster has a system time that varies by more than a few seconds from the clocks on the other systems in the cluster, scheduling confusion will result.

Author:: James House
See Also:: QuartzScheduler

Constructor Summary

SimpleTimeBroker()


Method Summary

Date getCurrentTime()
           Get the current time, simply using new Date().

void initialize()
           Called by the QuartzScheduler before the TimeBroker is used, in order to give the it a chance to initialize.

void shutdown()
           Called by the QuartzScheduler to inform the TimeBroker that it should free up all of it's resources because the scheduler is shutting down.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SimpleTimeBroker

public SimpleTimeBroker()

Method Detail

getCurrentTime

public Date getCurrentTime()

Get the current time, simply using new Date().

Specified by:: getCurrentTime in interface TimeBroker

initialize

public void initialize()
                throws SchedulerConfigException

Description copied from interface: TimeBroker

Called by the QuartzScheduler before the TimeBroker is used, in order to give the it a chance to initialize.

Specified by:: initialize in interface TimeBroker

Throws:: SchedulerConfigException

shutdown

public void shutdown()