About reference

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1

Occasionally slow requests in load testing

have so many        >  CPU cores, some queuing is not necessarily a bad thing. If you are referring ... and once it starts having this issue it is around 10-15%. If you are referring to something else, I'd ... to retry.  Kind regards, Natalia.   > If you are referring to the thread switching, it will not cause 10
Issue
1

Once served to JSF page via @EJB query bean, many list fields are null (but same query ok after fresh persist in @PostConstruct)

explanation I will refer to the (bi-directional) ownedElements List of the Element class ... and detachment is wrong. Detachment is done automatically by the application server and lazy references are not ... this case? Good question but you will have to refer it to the EclipseLink guys. ObjectDB doesn't
Issue
1

Out of Memory - Slow leak?

. It seems that there is a problem with some heavy objects that ObjectDB manages using reference counting. Somehow in an unknown situation the reference count drops to -1 and then the objects are pinned. Unfortunately ... the problem by blocking an attempt to decrease the reference count below 0. In addition on such attempt
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1

Problem with bidirectional link

of multiple references to the same instance of a class? It's hard to tell with the opaque code ... to commit transaction: Attempt to persist a reference to a non managed Folder instance - field Folder ... a reference to a non managed Folder instance - field Folder.children at com.objectdb.o
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Should I use ObjectDB and JDO?

JDO API reference unique to ObjectDB, or is it an exact copy of some JDO 2.x API that I could find ... spec is the ObjectDB API reference based on? In other words, which one should I use when coding.  I ... reference. > It looks like JDO is the preferred API for me (because ObjectDB FAQs lead me to believe
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1

alter table

transaction: Failed to get reference value of field field image.MetaSogou.iHei using reflection (error ... to get reference value of field field image.MetaSogou.iHei using reflection at com.objectdb.o ... .o.JPE.g(JPE.java:78) ... 4 more Caused by: com.objectdb.o.UserException: Failed to get reference
Issue
1

Bulk load of eager mapped by (inverse) relationships

. However, inverse (mapped by) references that have to be loaded eagerly currently do not participate in a bulk load, which means that every reference requires running a separate query and doing ... ) fields in bulk as well. Bulk load of eager mapped by (inverse) singular references is now supported in build 2.4.4_13. kborkowski lwalkowski
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1

Can't modify @EmbeddedId in ObjectDB Explorer

of the old entity object to the new object, updating references to the new object, and finally deleting ... are usually immutable in object oriented databases. Because object Ids are used in references between objects, the ability to modify them could cause broken references. It is also a good practice
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1

Database size is much larger than expected (x2)

including it in an embeddable object that is references twice.   >> by referencing it more than once in the same entity So, this is the problem. As OO programming, regardless of how many references ... . This is how it works in JPA (and JDO). Only entity objects have identity and support multiple references
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1

Failed to commit transaction: Attempt to commit a rollback only transaction

References) ----------------------------------- [1] mr.model.MRRound(10):210 Referenced by:   - mr.model ... while keeping references to them, which creates dangling (broken) references in the database. It is possible