How to start a transaction in JPA using entityManager

Question

I have started working on an application which uses spring, hibernate, JPA, SOAP webservices. Now there is a requirement that certain queries have to be run in a transaction

Answer 1

The add a hibernate.jta.allowTransactionAccess property with the value true and you should be allowed to use it manually. Though it's not a good practice to mix your strategies, having some code managed by JTA, some manually.