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3

clear()

Method javax.persistence.EntityManager void clear() Clear the persistence context, causing all managed entities to become detached. Changes made to entities that have not been flushed to the database will not be persisted. Since: JPA 1.0
3

FlushModeType.AUTO

Enum Constant javax.persistence.FlushModeType AUTO (Default) Flushing to occur at query execution. Since: JPA 1.0
3

javax.persistence.OptimisticLockException

. This exception may be thrown as part of an API call, a flush or at commit time. The current transaction
3

getFlushMode()

Method javax.persistence.EntityManager FlushModeType getFlushMode() Get the flush mode that applies to all objects contained in the persistence context. Returns: flushMode Since: JPA 1.0
3

javax.persistence.LockTimeoutException

not result in transaction rollback. This exception may be thrown as part of an API call, at, flush or
3

javax.persistence.EntityExistsException

is invoked, or the EntityExistsException or another PersistenceException may be thrown at flush or commit
0

javax.jdo.Transaction

to flushing instances to the data store. The afterCompletion method is called after performing state
0

preStore(event)

Method javax.jdo.listener.StoreLifecycleListener void preStore( InstanceLifecycleEvent event ) Invoked whenever a persistent instance is stored, for example during javax.jdo.PersistenceManager.flush or javax.jdo.Transaction.commit. It is called before the method StoreCallback.jdoPreStore is invoked. Parameters: event - the store event. Since: JDO 2.0
0

postStore(event)

Method javax.jdo.listener.StoreLifecycleListener void postStore( InstanceLifecycleEvent event ) Invoked whenever a persistent instance is stored, for example during javax.jdo.PersistenceManager.flush or javax.jdo.Transaction.commit. It is called after the field values have been stored. Parameters: event - the store event. Since: JDO 2.0
0

setSynchronization(sync)

Method javax.jdo.Transaction void setSynchronization( Synchronization sync ) The user can specify a Synchronization instance to be notified on transaction completions. The beforeCompletion method is called prior to flushing instances to the data store. The afterCompletion method is called

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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