Package org.alfresco.schedule

Class ScheduledJobLockExecuter

java.lang.Object

org.alfresco.schedule.ScheduledJobLockExecuter

public class ScheduledJobLockExecuter
extends Object

This class encapsulates the JobLockService usage in order to guarantee that a job is not executed simultaneously in more than one node in a cluster. After instantiated passing in constructor job to be executed, as well as the name of the to be locked job and the JobLockService, the execute method of this class will execute the job taking care of all cluster aware lockings.

This code is based on original code by Derek Hulley on ContentStoreCleaner, extracting the generic locking code in order to be reused and avoid code duplication.

Since:

4.1.5

Author:

Rui Fernandes

Constructor Summary

Constructors

Constructor	Description
ScheduledJobLockExecuter(JobLockService jobLockService, String name, AbstractScheduledLockedJob job)

Method Summary

Modifier and Type	Method	Description
void	execute(org.quartz.JobExecutionContext jobContext)	It will execute the job passed on instantiation taking care of all cluster aware lockings.

Methods inherited from class java.lang.Object

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

Constructor Detail

ScheduledJobLockExecuter

public ScheduledJobLockExecuter(JobLockService jobLockService,
                                String name,
                                AbstractScheduledLockedJob job)

Parameters:

jobLockService - the JobLockService

name - the name of the job to be used for the lock registry

job - the job to be executed

Method Detail

execute

public void execute(org.quartz.JobExecutionContext jobContext)
             throws org.quartz.JobExecutionException

It will execute the job passed on instantiation taking care of all cluster aware lockings.

Parameters:

jobContext - the usual quartz job context

Throws:

org.quartz.JobExecutionException - thrown if the job fails to execute