Can an Entity Bean call a stored procedure using Container Managed Persistence ? If yes, how?
Now, if your question was more generally "Can a CMP bean call a stored procedure?", for example from a business method, or from ejb<Post>Create(...), the answer is a definite yes. Just specify the resource-reference in your ejb-jar.xml (as you will anyway), look up the DataSource to get a Connection, the do all the CallableStatement JDBC stuff you want.