2 | getTransaction()Method javax.persistence.EntityManager EntityTransaction getTransaction() Return the resource-level EntityTransaction object. The EntityTransaction instance may be used serially to begin and commit multiple transactions. Returns: EntityTransaction instance Throws: IllegalStateException - if invoked on a JTA entity manager Since: JPA 1.0 |
2 | CacheStoreMode.REFRESHEnum Constant javax.persistence.CacheStoreMode REFRESH Insert/update entity data into cache when read from database and when committed into database. Forces refresh of cache for items read from database. Since: JPA 2.0 |
2 | CacheStoreMode.USEEnum Constant javax.persistence.CacheStoreMode USE Insert/update entity data into cache when read from database and when committed into database: this is the default behavior. Does not force refresh of already cached items when reading from database. Since: JPA 2.0 |
0 | preStore(event)Method javax.jdo.listener.StoreLifecycleListener void preStore( InstanceLifecycleEvent event ) Invoked whenever a persistent instance is stored, for example during javax.jdo.PersistenceManager.flush or javax.jdo.Transaction.commit. It is called before the method StoreCallback.jdoPreStore is invoked. Parameters: event - the store event. Since: JDO 2.0 |
0 | postStore(event)Method javax.jdo.listener.StoreLifecycleListener void postStore( InstanceLifecycleEvent event ) Invoked whenever a persistent instance is stored, for example during javax.jdo.PersistenceManager.flush or javax.jdo.Transaction.commit. It is called after the field values have been stored. Parameters: event - the store event. Since: JDO 2.0 |
0 | deletePersistent(pc)Method javax.jdo.PersistenceManager void deletePersistent( Object pc ) Delete the persistent instance from the data store. This method must be called in an active transaction. The data store object will be removed at commit. Unlike makePersistent, which makes the closure of the instance persistent |
0 | refresh(pc) store so that a subsequent commit is more likely to succeed. Outside a transaction, this method |
0 | setRetainValues(retainValues)Method javax.jdo.Transaction void setRetainValues( boolean retainValues ) If true, at commit instances retain their values and the instances transition to persistent-nontransactional. If an implementation does not support this option, a JDOUnsupportedOptionException is thrown. Parameters |
0 | setSynchronization(sync) after performing state transitions of persistent and transactional instances, following the data store commit |
0 | setOptimistic(optimistic)Method javax.jdo.Transaction void setOptimistic( boolean optimistic ) Optimistic transactions do not hold data store locks until commit time. If an implementation does not support this option, a JDOUnsupportedOptionException is thrown. Parameters: optimistic - the value of the Optimistic flag. Since: JDO 1.0 |
