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forum_thread

Best practice: Database update/migration of embedded databases in products

Hello Support, what experience do you have for data migration within a product? An example: There are three versions of a product (v1.0; v1.1, v2.0). In each version, the entities have been modified. Attributes added, removed and renamed. If attributes were removed, then only because the data is now held otherwise. ... the entities have been modified. Attributes added, removed and renamed. If attributes were removed, then only because the data is now held otherwise. The product ...

 
forum_thread

Bulk Delete and Update - best practice?

The attached test creates 1000 large objects and then attempts to delete them all in one go using a DELETE statement. I'm trying to run with -Xmx512m but the test runs out of memory during the delete. The attachment also contains an update test which has similar memory problems. I'm running both tests with the default objectdb.conf. In general is an UPDATE/DELETE statement the most efficient way to update/remove a large number of objects? ... a larger heap size. This limitation may be removed in future releases, but even then, using smaller UPDATE / DELETE ...

 
release

2.5.6

... parameters. Changed merge implementation (removed temporary object clearing). Fixed the Explorer to show ... the recovery file is empty ( issue #142 ). Removed EntityManager conflict checks in NO DETACH mode . ...

 
release

2.3.7

... regression (Type session exceeds timeout). Removed  Conflicting modifiers  validation check and error ... byte[] by reducing required storage space. Removed a shutdown hook that leads to memory leak ( issue #63 ). ...

 
release

2.4.1

... the recovery file is empty ( issue #142 ). Removed EntityManager conflict checks in NO DETACH mode . ... regression (Type session exceeds timeout). Removed  Conflicting modifiers  validation check and error ...

 
forum_thread

How to delete M2M relationship?

In user model class I have the following: public class User implements Serializable { ... Every entity object has to be removed by a separate invocation of the remove method. Removing a set of ...

 
api-jdo

javax.jdo.FetchPlan

Fetch groups are activated using methods on this interface.(Interface of JDO)

 
release

2.3.0

... byte[] by reducing required storage space. Removed a shutdown hook that leads to memory leak ( issue #63 ). ... of DISTINCT. Fixed a bug in keeping removed entity object in the L2 cache. Fixed orphan removal of ...

 
release

2.5.5

... parameters. Changed merge implementation (removed temporary object clearing). Fixed the Explorer to show ... the recovery file is empty ( issue #142 ). Removed EntityManager conflict checks in NO DETACH mode . ...

 
release

2.4.0

... the recovery file is empty ( issue #142 ). Removed EntityManager conflict checks in NO DETACH mode . ... regression (Type session exceeds timeout). Removed  Conflicting modifiers  validation check and error ...