56 | javax.persistence.EntityManagerjavax.persistence Interface EntityManager Interface used to interact with the persistence context. An EntityManager instance is associated with a persistence context. A persistence context is a set ... . The EntityManager API is used to create and remove persistent entity instances, to find entities by their primary |
52 | unwrap(cls)Method javax.persistence.EntityManager T unwrap( Class |
52 | getDelegate()Method javax.persistence.EntityManager Object getDelegate() Return the underlying provider object for the EntityManager, if available. The result of this method is implementation specific. The unwrap method is to be preferred for new applications. Returns: underlying provider object for EntityManager Since: JPA 1.0 |
52 | refresh(entity, lockMode, properties)Method javax.persistence.EntityManager void refresh( Object entity, LockModeType lockMode, Map |
52 | refresh(entity, lockMode)Method javax.persistence.EntityManager void refresh( Object entity, LockModeType lockMode ) Refresh the state of the instance from the database, overwriting changes made to the entity, if any ... -managed EntityManager instance with PersistenceContextType.TRANSACTION or with a lock mode |
52 | close()Method javax.persistence.EntityManager void close() Close an application-managed entity manager. After the close method has been invoked, all methods on the EntityManager instance and any Query and TypedQuery objects obtained from it will throw the IllegalStateException except for getProperties |
51 | createQuery(qlString)Method javax.persistence.EntityManager Query createQuery( String qlString ) Create an instance of Query for executing a Java Persistence query language statement. Parameters: qlString - a Java Persistence query string Returns: the new query instance Throws: IllegalArgumentException - if the query string is found to be invalid Since: JPA 1.0 |
51 | find(entityClass, primaryKey, lockMode, properties)Method javax.persistence.EntityManager T find( Class |
51 | getCriteriaBuilder()Method javax.persistence.EntityManager CriteriaBuilder getCriteriaBuilder() Return an instance of CriteriaBuilder for the creation of CriteriaQuery objects. Returns: CriteriaBuilder instance Throws: IllegalStateException - if the entity manager has been closed Since: JPA 2.0 |
51 | createNativeQuery(sqlString, resultSetMapping)Method javax.persistence.EntityManager Query createNativeQuery( String sqlString, String resultSetMapping ) Create an instance of Query for executing a native SQL query. Parameters: sqlString - a native SQL query string resultSetMapping - the name of the result set mapping Returns: the new query instance Since: JPA 1.0 |
