11 | Retrieving JPA Entity Objects. The retrieval of objects does not require an active transaction because it does not change the content ... that it references through its collection and map fields are not retrieved with it. This can be changed by ... of the managed object in memory is discarded (including changes, if any) and replaced by data |
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11 | Working with JPA Entity Objects Entities section. If a managed entity object is modified within an active transaction the change ... commit. See the Updating Entities section for more information about making changes to entities ... the EntityManager’s remove method within an active transaction. The entity object changes its state from Managed |
9 | Shared (L2) Entity Cache to the shared cache. JPA provides two properties that can be used in order to change the default behavior ... is not used. The default setting is USE. It can be changed for a specific EntityManager: em ... entity objects that are already cached. The default setting is USE. It can be changed for a specific |
9 | ObjectDB Object Database Features other managed objects. Transparent update - changes are detected automatically. Code enhancement ... versioning. Class hierarchy changes are handled automatically. New added fields are handled automatically. Removed fields are handled automatically. Most field type changes are handled automatically |
7 | DELETE Queries in JPA/JPQL. Applying changes to the database by calling the commit method. JPQL DELETE queries provide ... queries can only be executed within an active transaction and the changes are visible to other users |
7 | Eclipse Public License - v 1.0 Contributor: i) changes to the Program, and ii) additions to the Program; where such changes and/or |
1 | [ODB1] Chapter 8 - ObjectDB Server are the same in both modes, switching between these two modes can be done very easily by simply changing ... . The reload attribute specifies how often (in seconds) the server checks the configuration file for changes. For instance, a value of 30 (as specified above) indicates a check every 30 seconds. If a change |
0 | javax.jdo.JDOEntityManager, causing all managed entities to become detached. Changes made to entities that have not been flushed ... a managed entity to become detached. Unflushed changes made to the entity if any (including removal ... parameter, then this method returns it. There is no change made to the state of the returned instance |
0 | [ODB1] Chapter 2 - A Quick Tour (changing false to true has no effect here, because Person has no subclasses). The Extent of the class ... the database. Ending the transaction with rollback() discards all the changes done during its activity |
