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ObjectDB 2 JDO Manual

the dropdown menu. Thanks for ObjectDB, Fredrik JDO is the difference between ObjectDB probably ... . Actually the differences between JPA and JDO technical capabilities are quite small for most users
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1

ObjectDB Clustering VS Hadoop Hbase

whether it has only one entry, or each node has an entry. Could you please explain the difference between ... an ObjectDB cluster maintain a full copy of the database. In HBase data is divided between nodes
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1

ODB IndexActivation NullPointerException

: Also if we block thread B until thread A finished we get the problems.   So it seems to be a link between ... .) The problem is indeed a deadlock collision between metamodel access and automatic index activation
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)

the distinction between a Guest object and simple relational database table. I don't mind being wrong if I learn ... switching between ObjectDB and EclipseLink, we want to keep that option open if possible
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1

Optimistic locking: prevent version increment on entity collection attribute

relationship between Document and Reader, in which the Reader is the owner, may be appropriate ... is detached between the calls, check this issue and the no-detach solution. > I have tried to clear
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1

Performance in large transactions

and between the creations we call a select query. The execution of the query becomes slower at each ... ++) { : }     em.close(); Embedded vs. Inverse Collections  One of the differences between ObjectDB
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1

Pessimistic Lock Timeouts setting

pessimistic lock to lock the stock objects. Since the adaptor which resides between exchange market ... ). The rest of updates are written in ObjectDB by the adaptor itself. In order to avoid any clash between
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1

Post-compilation enhancement vs Automatic Run-time enhancement

We are getting massively different results on field loading between explicit post-compile enhancement and automatic run-time enhancement. Testing exactly where and when the results are different ... be a difference between the two enhancement methods. Both are expected to apply exactly the same code
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1

Query vs Extent for retrieving data

indicate file opening and closing and I'm using ObjectDB 2.3.4. The difference between using Extent ... between what I came up with and our production code and see if I can come up with anything more. Ok, so I
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1

Selective merge/cascade of detatched entity

_Enhancement_ This improved performance by between 5-30%, but this is still significantly slower ... concern is that the reason the detached objects are kept in memory is that they are shared between