Concurrent access on EntityBean on read only transaction

[qjafcunuas]

Hi,
I'm used JBoss 2.2 with Postgresql 7.1

I've a servlet, which calls a Stateful SessionBean, which calls some EntityBeans.
I can instance a lot of SessionBean per client, with access on same EntityBeans.
One of a method of this SessionBean (called readOnly()) reads only data from the persistence storage with EntityBeans (no update/delete on database, only select request).
The trouble is that when a client A (associated with an instance A of my SessionBean) call the readOnly method, if another client B makes the same thing on the same time, it appears a LOCKING-WAITING transaction.
How can i define this method readOnly() with a read only transaction, so that multiple-client could called readOnly() method in the same time, whitout LOCKINF-WAITING transaction ?

Thanks,

Bruno



For one method of my SessionBean, I would like to access to EntityBeans with ReadOnly attribute.
So, when
How can i do ?

[minamoto]

You could try 'NotSupported' as your session bean transaction attribute.

Miki

[qjafcunuas]

Thanks for your answer.

I try "NotSupported" as my session bean transaction attribute for the readOnly() method, but I've always the same trouble :
[EntityBeanName] LOCKING-WAITING (TRANSACTION) for id EntityBeanNamePK@1e8 ctx.hash 2025737 tx:TransactionImpl:XidImpl [FormatId=257, GlobalId=internal.dvlpt.com//1285, BranchQual=]

Nevertheless, il seems to be more efficient because there is less transaction with "NotSupported" attribute than with "Required" attribute.

Bruno.