org.rhq.enterprise.server.scheduler.jobs

Class DataPurgeJob

java.lang.Object

org.rhq.enterprise.server.scheduler.jobs.AbstractStatefulJob

org.rhq.enterprise.server.scheduler.jobs.DataPurgeJob

All Implemented Interfaces:

org.quartz.Job, org.quartz.StatefulJob

public class DataPurgeJob
extends AbstractStatefulJob

This implements StatefulJob (as opposed to Job) because we do not need nor want this job triggered concurrently. That is, we don't want multiple data purge jobs performing the data purge at the same time.

Constructor Summary

Constructors

Constructor and Description
DataPurgeJob()

Method Summary

Methods

Modifier and Type	Method and Description
void	calculateOOBs() Calculate the OOB values for the last hour.
void	executeJobCode(org.quartz.JobExecutionContext context) Subclasses should implement this method to perform the actual job.
static void	purgeNow() Schedules a purge job to trigger right now.

Methods inherited from class org.rhq.enterprise.server.scheduler.jobs.AbstractStatefulJob

execute

Methods inherited from class java.lang.Object

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

Constructor Detail

DataPurgeJob

public DataPurgeJob()

Method Detail

purgeNow

public static void purgeNow()
                     throws Exception

Schedules a purge job to trigger right now. This will not block - it schedules the job to trigger but immediately returns. This method will ensure that no two data purge jobs will execute at the same time (Quartz will ensure this since DataPurgeJob is an implementation of StatefulJob).

Throws:

Exception - if failed to schedule the data purge for immediate execution

executeJobCode

public void executeJobCode(org.quartz.JobExecutionContext context)
                    throws org.quartz.JobExecutionException

Description copied from class: AbstractStatefulJob

Subclasses should implement this method to perform the actual job.

Specified by:

executeJobCode in class AbstractStatefulJob

Throws:

org.quartz.JobExecutionException

calculateOOBs

public void calculateOOBs()

Calculate the OOB values for the last hour. This also removes outdated ones due to recalculated baselines.