Hii everyone I am having multiple datasources creating at runtime. so for each user there is a seperate database schema. so when they are registering the database is created and from that time onwards they have to acces their own database. I had configured in ds.xml, persistance.xml and components.xml but dynamiclly how can i achieve this. Can i change the connection string. or can i create a new EntityManager or EntityManagerFactory with new connection settings. please advice me Cheers. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4178189#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...