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Optimistic locking failure: I am using a Semaphore to force this execution of concurrents ...   Thanks. eurojet P. F. Martinez Please explain the test output: Sequential=true Lock =WRITE ... ] WRITE B2 version=2 value=30 A1 version=2 value=10, B2 version=2 value=30 Sequential=false Lock =WRITE

It appears that EntityTransaction.commit() does not release a pessimistic lock - test code ... . You are right. Pessimistic locks are not released automatically (by default) on transaction commit. The reason ... and the application can still use them for further processing and update. Locks are released automatically

.OptimisticLockException Optimistic lock failed for object entities.Record#'1405/838/2011/121 ... .java:381) ... Thank you! adibe Adi Be Optimistic locking is explained in this manual page . support Support

. The second example is an OSGi program which fails with an optimistic lock exception. Both examples ... ). Can you explain the optimistic lock exception? It seems that the first level cache contains yet a dirty entity

.jdo.option.RestoreValues=false The DB2 returns the message "Optimistic lock failed for object" or ... ._JdoUserException: Attempt to lock an entity object by retrieval when no transaction is activ

Hello, I have an entity E with an attribute which is a collection of entities (one to many relationship) with an optimistic locking strategy supported by a version field. Is it possible to prevent the increment of the version of entity E when entities are added to or removed from the collection

hi, my current use case is: execute unit test, verify results in explorer. my problem, i have to close the explorer before every run, and open it again after the tests are done. this slows down the whole process. i opened the database in readonly mode, but the file will be locked by the explorer

Hello When I get an optimistic lock on an object, refresh(), start trans and persist?  Will the changes made to the object before the violation be retained or must they be duplicated in the retry code?  Assuming it affects only one object.  tia. cpanon CP The exact situation

Database is locked when in use

Optimistic Lock Exception With No Concurrency

Have read read the documentation on optimistic locks , still not sure how to deal ... : Optimistic lock failed for object   dmoshal David Moshal perhaps I should explain the problem, which is that the optimistic lock exception fails repeatedly once the object is modified from

(JPA) 1.0 JDBC_USER Username for JDBC authentication. Since: Jakarta Persistence (JPA) 1.0 LOCK _TIMEOUT Default pessimistic lock timeout hint. Since: Jakarta Persistence (JPA) 1.0 QUERY_TIMEOUT Default

to update the object. I'm using a pessimistic lock with timeout as follows: Map properties = new HashMap (); properties.put("javax.persistence. lock .timeout", 5000); MyEntity loaded = em.find(MyEntity ... a LockTimeoutException implying that the first lock wasn't released on the first commit

with temporarily files and locking in Linux, if parallel processes access different files in the same directory ... the access on temporarily files with file locking ? btc_es BTC EmbeddedSystems Is it related ... , it is related to the original post. In Linux we try to get a lock on a lock file additionally by opening

below. No other process had a lock on the file, especially as the server had just been rebooted

language UPDATE or DELETE statement. PessimisticLockException - if pessimistic locking fails and the transaction is rolled back. LockTimeoutException - if pessimistic locking fails ... and the transaction is rolled back. TransactionRequiredException - if a lock mode

. LockTimeoutException - if pessimistic locking fails and only the statement is rolled ... timeout value set and only the statement is rolled back. PessimisticLockException - if pessimistic locking ... back. TransactionRequiredException - if a lock mode other than NONE has been set

language UPDATE or DELETE statement. LockTimeoutException - if pessimistic locking fails ... back. PessimisticLockException - if pessimistic locking fails and the transaction is rolled ... back. TransactionRequiredException - if a lock mode other than NONE has been set

- if pessimistic locking fails and the transaction is rolled back. LockTimeoutException - if pessimistic locking ... - if a lock mode other than NONE has been set and there is no transaction or the persistence context has not

Jakarta Persistence (JPA) Method in jakarta.persistence.Query LockModeType getLockMode() Get the current lock mode for the query. Returns null if a lock mode has not been set on the query object. Returns: lock mode. Throws: IllegalStateException - if the query is found not to be a Jakarta

DELETE statement. LockTimeoutException - if pessimistic locking fails and only the statement ... back. PessimisticLockException - if pessimistic locking fails and the transaction is rolled back. PersistenceException ... back. TransactionRequiredException - if a lock mode other than NONE has been set and there is no transaction or

query language UPDATE or DELETE statement. PessimisticLockException - if pessimistic locking fails and the transaction is rolled back. LockTimeoutException - if pessimistic locking fails ... value set and the transaction is rolled back. TransactionRequiredException - if a lock mode

DELETE statement. PessimisticLockException - if pessimistic locking fails and the transaction is rolled back. LockTimeoutException - if pessimistic locking fails and only the statement is rolled ... and the transaction is rolled back. TransactionRequiredException - if a lock mode other than NONE has been set

. LockTimeoutException - if pessimistic locking fails and only the statement is rolled back. NonUniqueResultException ... value set and only the statement is rolled back. PessimisticLockException - if pessimistic locking ... back. TransactionRequiredException - if a lock mode other than NONE has been set

temporary files of other processes that are not locked (active temporary files are always locked ... so you cannot identify the process of each temporary directory. In that directory a lock file, lock .lck ... temporary directory of a process, an attempt to delete lock .lck is made. It should fail if the process

Jakarta Persistence (JPA) Method in jakarta.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

Jakarta Persistence (JPA) Method in jakarta.persistence.EntityManager LockModeType getLockMode (    Object entity ) Get the current lock mode held by this persistence context on the given managed entity instance. Parameters: entity - a managed entity instance Returns: the lock mode

Jakarta Persistence (JPA) Method in jakarta.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

Thrown by the persistence provider when a pessimistic locking conflict occurs. This exception

the persistence provider when a pessimistic locking conflict occurs that does not result in

a value used to detect optimistic lock failure. Fields or properties of an entity class

. This includes configuration information such as max results, hints, flush mode, lock mode, result set

The class of the result. Since: Jakarta Persistence (JPA) 1.0 LockModeType lockMode The lock mode obtained

Jakarta Persistence (JPA) Interface jakarta.persistence.FindOption An option influencing the behavior of EntityManager.find . Built-in options control locking , cache interaction , and timeouts . This interface may be implemented by custom provider-specific options which extend the options defined

optimistic locking checks. Portable applications using bulk update operations must manually update

Jakarta Persistence (JPA) Interface jakarta.persistence.RefreshOption An option influencing the behavior of EntityManager.refresh . Built-in options control locking , cache interaction , and timeouts . This interface may be implemented by custom provider-specific options which extend the options

) 1.0 LockModeType lockMode (Optional) The lock mode type to use in query execution. If a lockMode

on the database in use and the locking mechanisms used by the provider, this hint may or may not be observed

results, hints, flush mode, lock mode, result set mapping information, and information about stored

Jakarta Persistence (JPA) Method in jakarta.persistence.EntityResult LockModeType lockMode The lock mode obtained by the SQL query. Default: LockModeType.OPTIMISTIC Since: Jakarta Persistence (JPA) 3.2

Jakarta Persistence (JPA) Enum Constant in jakarta.persistence.LockModeType OPTIMISTIC Optimistic lock . Since: Jakarta Persistence (JPA) 2.0

Jakarta Persistence (JPA) Enum Constant in jakarta.persistence.LockModeType OPTIMISTIC_FORCE_INCREMENT Optimistic lock , with version update. Since: Jakarta Persistence (JPA) 2.0

Jakarta Persistence (JPA) Enum Constant in jakarta.persistence.LockModeType PESSIMISTIC_READ Pessimistic read lock . Since: Jakarta Persistence (JPA) 2.0

Jakarta Persistence (JPA) Enum Constant in jakarta.persistence.LockModeType PESSIMISTIC_WRITE Pessimistic write lock . Since: Jakarta Persistence (JPA) 2.0

Jakarta Persistence (JPA) Enum Constant in jakarta.persistence.LockModeType PESSIMISTIC_FORCE_INCREMENT Pessimistic write lock , with version update. Since: Jakarta Persistence (JPA) 2.0

Jakarta Persistence (JPA) Enum Constant in jakarta.persistence.LockModeType NONE No lock . Since: Jakarta Persistence (JPA) 2.0

Jakarta Persistence (JPA) Method in jakarta.persistence.NamedQuery LockModeType lockMode (Optional) The lock mode type to use in query execution. If a lockMode other than LockModeType.NONE is specified, the query must be executed in a transaction and the persistence context joined

and the locking mechanisms used by the provider, this hint may or may not be observed. Parameters

.objectdb.jdo.PMImpl.makePersistent(PMImpl.java:241) - locked (a com.spiffymap.naviupdate.model.Repository) - locked (a com.objectdb.jdo.PMImpl) sjzlondon Steve Zara Could you please post a full thread ... ) at java.lang.Thread.run(Thread.java:748) Locked ownable synchronizers: - locked (a java.util

blocked: 109 Total waited: 80 Stack trace: com.objectdb.o.PGC.C(PGC.java:484) - locked java.lang.Object ... :1056) com.objectdb.o.OBC.aK(OBC.java:969) com.objectdb.jpa.EMImpl.find(EMImpl.java:551) - locked ... .workflow.ObjectDbInstanceContainer.putIfAbsent(ObjectDbInstanceContainer.java:108) - locked rbccm.felix