Scheduling Tasks

[aryjr]

Hi, they see below the definition of my MBean that implements the interface org.jboss.varia.scheduler.Schedulable on file jboss-service.xml:


true
br.com.valoriza.alertas.mbean.AlertasStockScreener
NOW
60000
-1


Through the "JMX MBean View" I can modify the properties defined in the XML, such as "SchedulePeriod" or "StartAtStartup". My problem is that these modifications do not persist when the JBoss is restarted. Is it impossible? Another question: How I could define other properties beyond these?

[]s

Ary Junior

[genman]

Unfortuantely JBoss/JMX does not have a good way to persist attribute changes to disk or database. I think with XMBeans you can create interceptors, but I haven't gotten this to work very well. I think there are two good solutions:

1) Modify the -service.xml file directly.
2) Create your own MBean which, through setAttribute/getAttribute saves/loads values from a database.

[raja05]

XMBean should be a good option to do this combined with a custom persistence manager. you can define ur custom persistence manager to extend from org.jboss.mx.persistence.PersistenceManager and override the load and store methods to retrieve/store values from DB or flat file.

My MBean is XDoclet-ed to use this persistencemanager like
* @jmx.mbean name="net.collab:type=Configuration"
* description="Configuration Bean - XMBean"
* persistPolicy="OnUpdate"
* persistLocation="/tmp"
* persistName="config.mbean"
* persistence-manager="net.collab.xmbean.persistence.PropertyStyledPersistenceManager"
*

[dimitris]

There is a new persistence framework + XML based persistence backend for XMBeans,

see:

http://www.jboss.org/wiki/Wiki.jsp?page=XMBeanAttributePersistenceService

Regards
/Dimitris