Got a chance to learn JMS .JMS Provider is JBossMQ.Learnt things about topic,queue,non persistent ,persistent mode of message deliveries,durable and non-durable subscriptions,message listeners.
Irrespective of all this scenarios we faced a situtation where messages are non-persistent,no durable subscriptions still messages are not deleted from Microsoft SQL Server DB.
Another strange situation when these messages gets deleted in DB after they get consumed and where these delete queries created lock on one another leading to some many abnormal situations.This made us to truncate the table.
ConnectionFactory--->Connection--->Session--->whatever (consumer/producer)get here.
Learnt little about MDB's ,message listeners.....
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