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About PESSIMISTIC_WRITE

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JDO Doc
25

Constants.PMF_ATTRIBUTE_NONTRANSACTIONAL_WRITE

Static Field javax.jdo.Constants String PMF_ATTRIBUTE_NONTRANSACTIONAL_WRITE The name of the persistence manager factory element's "nontransactional-write" attribute. Since: JDO 2.1
JDO Doc
25

Constants.OPTION_NONTRANSACTIONAL_WRITE

Static Field javax.jdo.Constants String OPTION_NONTRANSACTIONAL_WRITE "javax.jdo.option.NontransactionalWrite" Since: JDO 2.1 See Also: PersistenceManagerFactory.supportedOptions()
JDO Doc
25

Constants.PROPERTY_NONTRANSACTIONAL_WRITE

Static Field javax.jdo.Constants String PROPERTY_NONTRANSACTIONAL_WRITE "javax.jdo.option.NontransactionalWrite" Since: JDO 2.1 See Also: PersistenceManagerFactory.getNontransactionalWrite()
JPA Doc
25

LockModeType.WRITE

Enum Constant javax.persistence.LockModeType WRITE Synonymous with OPTIMISTIC_FORCE_INCREMENT. OPTIMISTIC_FORCE_IMCREMENT is to be preferred for new applications. Since: JPA 1.0
Manual
18

Advanced JPA Topics

Describes advanced JPA topics - detached entity objects, lock management and entity lifecycle events.
Forum
14

Pessimistic Lock Timeouts setting

) - and my test case is failing here. The issue is that once the pessimistic lock is in place ... ._LockTimeoutException: Write lock cannot be granted for a.b.c.d.EE#150. irrespective if I set ... the meantime, I'll use an optimistic lock and fail on stale updates. Support of pessimistic lock timeout
Issue
12

Pessimistic lock timeout - blocks indefinitely

); MyEntity loaded = em.find(MyEntity.class, 1, LockModeType.PESSIMISTIC_WRITE, properties ... I've attached a simple test which creates an object then kicks off several threads which each try to update the object. I'm using a pessimistic lock with timeout as follows: Map
JPA Doc
10

javax.persistence.EntityManager

. If the entity is found within the persistence context and the lock mode type is pessimistic and the entity ... . If the lock mode type is pessimistic and the entity instance is found but cannot be locked ... PessimisticLockException - if pessimistic locking fails and the transaction is rolled
Manual
10

Database Management Settings

="." mode="write" />   writing is required before commit returns
Forum
9

Pessimistic lock

Pessimistic lock