Java EE 8 Application Development

Bean-managed transactions

As we have seen, container-managed transactions make it ridiculously easy to write code that is wrapped in a transaction. There is nothing special that we need to do to make them that way; as a matter of fact, some developers are sometimes not even aware that they are writing code that will be transactional in nature when they develop session beans. Container-managed transactions cover most typical use cases that we will encounter. However they do have a limitation; each method can be wrapped in a single transaction or without a transaction. With container-managed transactions, it is not possible to implement a method that generates more than one transaction, but this can be accomplished by using bean-managed transactions: ...