46 | createQuery(criteriaQuery)Method javax.persistence.EntityManager TypedQuery<T> createQuery( CriteriaQuery<T> criteriaQuery ) Create an instance of TypedQuery for executing a criteria query. Parameters: criteriaQuery - a criteria query object Returns: the new query instance Throws: IllegalArgumentException - if the criteria query is found to be invalid Since: JPA 2.0 |
46 | lock(entity, lockMode)Method javax.persistence.EntityManager void lock( Object entity, LockModeType lockMode ) Lock an entity instance that is contained in the persistence context with the specified lock mode type. If a pessimistic lock mode type is specified and the entity contains a version attribute, the persistence |
46 | createQuery(qlString, resultClass)Method javax.persistence.EntityManager TypedQuery<T> createQuery( String qlString, Class<T> resultClass ) Create an instance of TypedQuery for executing a Java Persistence query language statement. The select list of the query must contain only a single item, which must be assignable to the type |
46 | joinTransaction()Method javax.persistence.EntityManager void joinTransaction() Indicate to the entity manager that a JTA transaction is active. This method should be called on a JTA application managed entity manager that was created outside the scope of the active transaction to associate it with the current JTA |
46 | createNamedQuery(name, resultClass)Method javax.persistence.EntityManager TypedQuery<T> createNamedQuery( String name, Class<T> resultClass ) Create an instance of TypedQuery for executing a Java Persistence query language named query. The select list of the query must contain only a single item, which must be assignable to the type |
46 | isOpen()Method javax.persistence.EntityManager boolean isOpen() Determine whether the entity manager is open. Returns: true until the entity manager has been closed Since: JPA 1.0 |
46 | 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 |
46 | getProperties()Method javax.persistence.EntityManager Map<String,Object> getProperties() Get the properties and hints and associated values that are in effect for the entity manager. Changing the contents of the map does not change the configuration in effect. Returns: map of properties and hints in effect for entity manager Since: JPA 2.0 |
46 | getMetamodel()Method javax.persistence.EntityManager Metamodel getMetamodel() Return an instance of Metamodel interface for access to the metamodel of the persistence unit. Returns: Metamodel instance Throws: IllegalStateException - if the entity manager has been closed Since: JPA 2.0 |
46 | getLockMode(entity)Method javax.persistence.EntityManager LockModeType getLockMode( Object entity ) Get the current lock mode for the entity instance. Parameters: entity - entity instance Returns: lock mode Throws: TransactionRequiredException - if there is no transaction IllegalArgumentException - if the instance |
