Meiyappan Kannappa

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since Sep 15, 2008
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Recent posts by Meiyappan Kannappa

I hope you can disable the transaction by setting the transaction attribute to Never or Not supported . But I havent tried of this scenario.

1. Difference between Tier and Layer:
Tier is physical separation, Seperate server machine for Application server, Database and web. Each physical machine is Tier. On other hand the term layer will be used to represent level of separation of your class structures. Your DAO will be a layer, BO will be layer, Action classes will be layer.

2. No, Please refer my answer to previous question.

3. Yes


Could you please update with the name of your bean class, bean remote class, version of JBoss and EJB.

You need to extend any checked exception from custom exception class. Only then the application exception will be propageted to web layer. Since you are extending Runtime exception, all runtime exception will be wrapped by EJBException and propagated.

Thank you
yes it is possible, you ca look up for the transaction from JNDI, start the transaction, invoke ejb and commit it. Also you need to have BMT for your bean

If you dont have your client in the same archieve, then you need to do lookup using Initial context and JNDI name.


I hope the JNDI name in the Deployment descriptor(ejb.demo.Demo.DemoBean) and the one you are trying to lookup are different (Demo.DemoBean). Try with full JNDI name. Since i am not very sure of weblogic. Since in JBoss it requires full JNDI name.

Try starting your server with run command like "run -b", through which you can access the url either using localhost or or your host ip.
13 years ago
Please post the Entire Exception stack trace and persistence.xml , Hope the problem might be in persistence.xml file.

For details about TimerService in EJB3.... visit the following link