Need to refresh the JBoss treecache periodically

[sudarshanra]

Hi,

I need to setup the time to refresh the treecache for every 15 minutes. Can anybody provide me the information on how to setup the refreshing period, so that for every 15 minutes the need to be refreshed in the cache. That is for every 15 miuntes the data will be fetched from the database and keep it in cache.

Any ideas please...

Thanks in advance !!!!


Regards,
Sudarshan

[ben.wang]

Best way is probably to use your own timer thread and then do a get from DB and then put to the cache.

[sudarshanra]

Hi,

Thanks for the information. I am trying to implement the same. Mean while thinking about alternatives. Any further ideas welcome.

Regards,
Sudarshan

[sudarshanra]

Hi,

I have used timer thread for cache refresh and it is working fine. Now I need to enable this jboss cache implementation including DB calls as a service which should start when the server starts. Is there any way to deploy like that please?

Thanks in advance.

Regards,
Sudarshan

[brian.stansberry]

Writing and deploying services in JBoss AS is covered in Chapter 2.4 of the 4.0.4 version of the JBoss Application Server Guide, available at http://labs.jboss.com/portal/jbossas/docs.

The various *-service.xml files found in etc/META-INF of the JBoss Cache distribution are actually service deployment descriptors that will deploy a cache in the AS as a service. Suggest you start with one of those as a template and modify it to configure your cache. Then add a second mbean in the same file to deploy your service that creates the timer thread, etc. Use dependency injection to inject the cache into your service; i.e. in your mbean declaration add:

<depends optional-attribute-name="TreeCache">myco:service=MyCache</depends>

The above assumes your service exposes an mbean attribute named "TreeCache" and that the object name of your cache is "myco:service=MyCache".