 101 | the content of a database require active transactions. Transactions are managed by an EntityTransaction ... );
EntityTransaction Operations that affect the content of the database (store, update, delete) must be performed within an active transaction. The EntityTransaction interface represents and manages database |
97 | javax.persistence Interface EntityTransaction Interface used to control transactions on resource-local entity managers. The EntityManager.getTransaction() method returns the EntityTransaction interface. Since: JPA 1.0 Learn how to use EntityTransaction in Chapter 3 of the ObjectDB/JPA manual. void |
91 | Method javax.persistence.EntityTransaction void commit() Commit the current resource transaction, writing any unflushed changes to the database. Throws: IllegalStateException - if isActive() is false RollbackException - if the commit fails Since: JPA 1.0 |
91 | Method javax.persistence.EntityTransaction boolean getRollbackOnly() Determine whether the current resource transaction has been marked for rollback. Returns: boolean indicating whether the transaction has been marked for rollback Throws: IllegalStateException - if isActive() is false Since: JPA 1.0 |
91 | Method javax.persistence.EntityTransaction boolean isActive() Indicate whether a resource transaction is in progress. Returns: boolean indicating whether transaction is in progress Throws: PersistenceException - if an unexpected error condition is encountered Since: JPA 1.0 |
91 | Method javax.persistence.EntityTransaction void rollback() Roll back the current resource transaction. Throws: IllegalStateException - if isActive() is false PersistenceException - if an unexpected error condition is encountered Since: JPA 1.0 |
91 | Method javax.persistence.EntityTransaction void setRollbackOnly() Mark the current resource transaction so that the only possible outcome of the transaction is for the transaction to be rolled back. Throws: IllegalStateException - if isActive() is false Since: JPA 1.0 |
91 | Method javax.persistence.EntityTransaction void begin() Start a resource transaction. Throws: IllegalStateException - if isActive() is true Since: JPA 1.0 |
49 | Explains how to store, retrieve, update and delete entity objects using JPA. |
49 | Explains how to use JPA for CRUD database operations (persist, retrieve, update, remove). |