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Attempt to open a non existing file '/tmp/objectdb_xxxx/SortQueryItr_6.mrg'

- maybe one application deleted the tmp file of another application. I hope this description is sufficient. EKK EKK Emmanuel Keskes ObjectDB deletes its temporary files in 2 ways: Every process deletes its own temporary files

executeUpdate()

"> Execute an update or delete statement. Returns: the number of entities updated or deleted

javax.persistence.EntityManager

delete. Create ... or delete. Parameters

javax.persistence.LockModeType

T1 reads a row. Another transaction T2 then modifies or deletes that row, before T1 has committed ... (Non-repeatable read): Transaction T1 reads a row. Another transaction T2 then modifies or deletes

Removing of an entity removes also another entity type

are removed by a query (DELETE FROM ...), afterwards ResolverMapping entities are created and persisted ... a query (DELETE FROM ...) then it performs. The data is not lost. This workaround ... EmbeddedSystems OK. Thanks for the update. Please note that mixing direct DELETE

Element.deleteAction

> Delete action to apply to any foreign key for the element. Returns: delete

javax.jdo.listener.InstanceLifecycleEvent

DELETE" title="Static Field of javax.jdo.listener.InstanceLifecycleEvent">DELETE

ForeignKey.deleteAction

deleteAction The delete action of this foreign key. Returns: the delete action

deletePersistentAll(parameters)

> Deletes all the instances of the candidate class that pass ... that were deleted Since:

Persistent.dependent

and so deleted when this object is deleted. Returns