refresh(entity, lockMode, properties) - JPA EntityManager's method
Method javax.persistence.EntityManager
void refresh(
Object entity,
LockModeType lockMode,
Map<String,Object> properties
)
If the lock mode type is pessimistic and the entity instance is found but cannot be locked:
- the
PessimisticLockException
will be thrown if the database locking failure causes transaction-level rollback - the
LockTimeoutException
will be thrown if the database locking failure causes only statement-level rollback
If a vendor-specific property or hint is not recognized, it is silently ignored.
Portable applications should not rely on the standard timeout hint. Depending on the database in use and the locking mechanisms used by the provider, the hint may or may not be observed.
- Parameters:
-
entity
- entity instance -
lockMode
- lock mode -
properties
- standard and vendor-specific properties and hints
- Throws:
-
IllegalArgumentException
- if the instance is not an entity or the entity is not managed -
TransactionRequiredException
- if there is no transaction and if invoked on a container-managedEntityManager
instance withPersistenceContextType.TRANSACTION
or with a lock mode other thanNONE
-
EntityNotFoundException
- if the entity no longer exists in the database -
PessimisticLockException
- if pessimistic locking fails and the transaction is rolled back -
LockTimeoutException
- if pessimistic locking fails and only the statement is rolled back -
PersistenceException
- if an unsupported lock call is made
- Since:
- JPA 2.0