September 2006 - hibernate-dev - Jboss List Archives

hibernate-sybase-testsuite Build Completed With Testsuite Errors

by qa＠jboss.com

18 years, 3 months

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by David Hernandez

Hi, I´m wondering about persistence aplications using hibernet. I tried Hibernate configuration with Netbeans but I have some problems. Do you have some information or documentation about developing applications with hibernet and netbeans, I´m interested in documentacion about swing aplications

18 years, 3 months

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More fun with merging : non-updatable fields

by Josh Moore

Using Hibernate with non-updatable fields can leave entities in a confused state. Take an Image with a field creationEvent, not updatable. If Image.creationEvent is set on an instance and passed to session.merge(), then: (1) Properly, no UPDATE is issued. (2) DefaultMergeEventListener.copyValues copies the invalid creationEvent to the new instance (3) The client who receives that instance thinks creationEvent has been successfully updated. What are the semantics here? Should the spec specify this? Max, you mentioned via irc that this wasn't in the spec, but I assume @Column( updatable = false ) would cause the same issue. Currently I'm writing logic in my MergeEventListener to NOT copy these values (difficult because of the EmbeddedComponentTypes I'm using). It seems, however, that this should be belong directly to DefaultMergeEventListener. Opinions?

18 years, 3 months

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RE: new SPI for EJB3/Seam (Gavin King)

by Josh Moore

Redirecting to list.jboss.org from sf.net > For truly efficient clustering of extended persistence contexts in the > context of Seam or EJB3, we need a way to propagate unflushed > changesets. What we need is an SPI like this: > > Serializable changeset = session1.getChangeSet(); > > session2.applyChangeSet(changeset); > > where session2 is an empty session, or perhaps even a session with some > of the same entities as session1. The only state that needs to be sent > in the changeset is new entities, unflushed updates to entities and > deletions of entities. > > Steve, WDYT? +1 even if my names not Steve. Seems like the same infrastructure would also be usable in implementing a remote client session. (Discussed in various places.) ~Josh.

18 years, 3 months

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Snapshot conflict with merge

by Christian Bauer

I wrote (tested and verified with Gavin): Finally, merging doesn’t allow the following scenario, where two modifications conflict on one snapshot: item.getId() // The database identity is "1234" item.setDescription(...); Session session= sessionFactory.openSession(); Transaction tx = session.beginTransaction(); Item item2 = (Item) session.get(Item.class, new Long(1234)); item2.setDescription(...); // Not allowed! return session.merge(item); // Throws exception! tx.commit(); session.close(); The detached object’s description is modified as well as the persistent object’s. There is no way for Hibernate to determine who will win in this situation and a StaleObjectStateException is thrown when you try to merge() onto a dirty persistent instance. Emmanuel comments: No exception is raised in my tests. The merged state takes precedence over the initially loaded and modified state (regardless the object has been versioned or not) AFAIR, the spec does not talk about such an exception either. What is it?

18 years, 3 months

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hibernate-mysql-testsuite Build Completed With Testsuite Errors

by qa＠jboss.com

18 years, 3 months

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hibernate-sybase-testsuite Build Completed With Testsuite Errors

by qa＠jboss.com

18 years, 3 months

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hibernate-sqlserver-jtds-testsuite Build Timed Out

by qa＠jboss.com

18 years, 3 months

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hibernate-hsqldb-testsuite Build Completed With Testsuite Errors

by qa＠jboss.com

18 years, 3 months

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hibernate-oracle10-testsuite Build Completed With Testsuite Errors

by qa＠jboss.com

18 years, 3 months

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hibernate-dev September 2006