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About LockModeType

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JPA Doc
6

refresh(entity, lockMode, properties)

Method javax.persistence.EntityManager void refresh(   Object entity,   LockModeType lockMode,   Map properties ) Refresh the state of the instance from the database, overwriting changes made to the entity, if any, and lock it with respect to given lock mode type and with specified
JPA Doc
6

setLockMode(lockMode)

Method javax.persistence.Query Query setLockMode(   LockModeType lockMode ) Set the lock mode type to be used for the query execution. Parameters: lockMode - lock mode Returns: the same query instance Throws: IllegalStateException - if the query is found not to be a Java Persistence query language SELECT query or a Criteria API query Since: JPA 2.0
JPA Doc
6

setLockMode(lockMode)

Method javax.persistence.TypedQuery TypedQuery setLockMode(   LockModeType lockMode ) Set the lock mode type to be used for the query execution. Parameters: lockMode - lock mode Returns: the same query instance Throws: IllegalStateException - if the query is found not to be a Java Persistence
Result
6

java.io.Serializable

, JDOUnsupportedOptionException, JDOUserCallbackException, JDOUserException, JoinType, LoadState, LockModeType
Forum
4

"Attempt to lock a non entity object" error

(),       LockModeType.PESSIMISTIC_WRITE); . . } //doEdit ... ; import javax.persistence.LockModeType; import javax.persistence.Persistence ... );         em.lock(p, LockModeType.PESSIMISTIC_WRITE);         System.out.println("After find
Result
2

ObjectDB version 2.4.0

of entity classes (issue #672). Fixed LockModeType.OPTIMISTIC (READ) by handling it as OPTIMISTIC_FORCE_INCREMENT. Fixed a bug in optimistic locking on find by using LockModeType.WRITE. Fixed
Forum
2

Duplicate Entity class names causes Exception in Query

.setHint(QueryHints.CACHE_USAGE, CacheUsage.CheckCacheThenDatabase); /* q.setLockMode(LockModeType
Forum
2

How to do multithreading with embedded ObjectDB

with a retrieval with a lock and an update:         Point point = em.find(Point.class, 1, LockModeType
Forum
2

Optimistic locking failure

if was fixed the same problem with LockModeType.READ: Thread[Thread-1,5,main] READ  A1 version=1
Issue
2

Pessimistic lock timeout - blocks indefinitely

); MyEntity loaded = em.find(MyEntity.class, 1, LockModeType.PESSIMISTIC_WRITE, properties