12.2. Java and transactions
There are two Java APIs related to transactions. The Java Transaction API (JTA) specifies local Java interfaces between a transaction manager and the parties involved in a distributed transaction system (application, resource manager and application server). It is the high-level interface that your applications use to control transactions.
The key object in JTA is the javax.transaction.UserTransaction. Developers can use a UserTransaction to begin, commit, or roll back transactions.
The EJB 1.1 specification requires that the javax.transaction.UserTransaction interface be made available by the EJB container for session EJBs with bean-managed transaction demarcation.
WebSphere also makes the UserTransaction interface ...
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