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JDO Doc
3

setTransactionIsolationLevel(level)

are: read-uncommitted read-committed repeatable-read snapshot serializable Parameters: level ... _UNCOMMITTED Constants.TX_READ_COMMITTED Constants.TX_REPEATABLE_READ Constants.TX_SNAPSHOT Constants.TX_SERIALIZABLE
JDO Doc
3

Unique.deferred

Annotation Element javax.jdo.annotations.Unique String deferred Whether this unique constraint is deferred until commit. Returns: whether this unique constraint is deferred until commit Default value: "" Since: JDO 2.1
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3

OutofMemory error with Object DB 2.0

and inserts 200 records at a time. The transaction obtained from the PersistentManager is commited ... after every commit or how do I resolve this issue. Please help ... .commit(EMImpl.java:279) at com.anritsu.eu.database.DatabaseImplementation.storeItem(Unknown Source
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3

evictAll() behavior

PersistenceManager - it is useful only to see changes that have been committed by other persistence managers ... of object in one transaction and i want to reclaim memory after commit or even better after flush ... this   System.out.println("Cache size before commit= " + pm.getManagedObjects().size()); pm.currentTransaction
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3

Internal exception when updating date filed (TemporalType.DATE)

Hello! ObjectDB version 2.5.3_02. I get internal exception when commiting update Date field (javax ... to commit transaction: (error 613) at com.objectdb.jpa.EMImpl.commit(EMImpl.java:290 ... ) at com.objectdb.o.OBM.bJ(OBM.java:729) at com.objectdb.jpa.EMImpl.commit(EMImpl.java:287) ... 2
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3

Database size is much larger than expected (x2)

Exception in thread "main" [ObjectDB 2.2.9_03] javax.persistence.RollbackExcepti on Failed to commit transaction: Java heap space (error 613)         at com.objectdb.jpa.EMImpl.commit(EMImpl.java:277 ... )         at com.objectdb.jpa.EMImpl.commit(EMImpl.java:274)         ... 2 more Question 1 : Why objectdb cause
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2

Insertion Speed Rate and Batch Load

version of your TestObjectDB.java file that commits once per 10,000 entity objects. On Intel Core 2 Quad ... )             {                 em.getTransaction().commit();                 em.getTransaction().begin();             }         }         em.getTransaction().commit();         long time = System.currentTimeMillis
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2

Performance in large transactions

= create10000Entites(); entityManager.merge(entities); x.end += 1; transaction.commit ... .commit(); transaction.close(); entityManager.close(); Can you give us help you understand it? Now ... to the database since the last commit, is more efficient. If there are updates, ObjectDB may have to apply
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2

Remove an entity which attributes were changed - OptimisticLockException

the entity from the database. After commit the transaction an exception is caused with optimistic lock ... , it works well. Why the ObjectDB want to commit the changes of the entity although the entity ... an object, removes it and commit. This should work if the changes of user 1 are local in memory
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2

Dirty checking

that were changed after a commit, i.e: after the transaction has succeeded, so that I can update views ... , and also, the entire transaction could fail. i.e: I'd really like to know after a commit what objects changed in the prior commit. in other words a 'post-commit' listener.  I can guarentee single threaded access