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Duplicate Entity class names causes Exception in Query

.OPTIMISTIC); */ try { java.lang.Object r = q.getSingleResult(); return (NoIdQueryMapItem
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1

Entity Version History

ObjectDB manages automatic entity versioning (for optimistic lock purposes). Every entity object modification is reflected by a new version number. Naturally, previous values in the entity object that are overridden by new values are discarded. Some applications may benefit from the ability
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1

ObjectDB version 2.1 has been released

the download). Added support of disabling optimistic locking exceptions. Added support of url
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Pessimistic Lock Timeouts setting

the meantime, I'll use an optimistic lock and fail on stale updates. Support of pessimistic lock timeout
Issue
1

Remove an entity which attributes were changed

We use an OSGi environment and we have three OSGi plugins.   In plugin A an entity is loaded and the entity is passed to plugin B. Plugin B changes an attribute on the entity. Plugin C removes the entity from the database. After commit the transaction an exception is caused with optimistic lock
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Remove not working

"); properties.setProperty("javax.jdo.option.Optimistic", "true"); properties
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Replication error on slave restart

UP TO DATE] 6) got this on slave after step 3: com.objectdb.o.UserException: Optimistic lock failed
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Transaction isolation support?

of that specific object using the first EntityManager, due the default optimistic locking (unless disabled in
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Updating Entities

get an odd error message... Caused by: com.objectdb.o._OptimisticLockException: Optimistic lock failed
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[ODB1] Chapter 5 - JDO Connections

.option.Optimistic", "false"); properties.setProperty( "javax.jdo.option.NontransactionalRead ... another type of transaction called optimistic transactions. When using optimistic transactions, objects ... succeeds while the second fails, throws an exception, and is rolled back automatically. Optimistic