About identifier

161-170 of 173Refresh
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Updating Entities

between EntityManagers (perhaps my implementation is incorrect).  As I identified (and is noted in
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Using multiple databases

Is it possible for an ObjectDB PersistenceManger/EntityManager to connect to more than one database at a time? Also, can objects in one database reference objects in another database (e.g. through globally unique identifiers)? You can use as many databases as needed at the same time but each
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1

What algorithm in find()

object in that cache has to be checked against an old image to identify updates automatically
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Failover from Master to Slave

only mode. This requires some operations by your application: identifying a failure, moving
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Query results are not up to date for entities, not primitives

it could help. I have identified that the problem lies elsewhere, not in the generic parameters. When I
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2.7.3_03 Erroneous "Attempt to modify a primary key of a managed object"

identified as a subclass of SingleFieldIdentity in #7 above, which is probably the result of a class loading
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log entry and massive performance issues

? It may help to identify the exact build in which this issue is started. 2.7.3 works well and 2.7.4_02 doesn't
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several times a day queries take several minutes

the above example)       Can you monitor the server machine and identify unusual activity
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reading from table gives Unexpected exception

to identify the problem. Note, however, that many issues have been fixed since version 2.6.3
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[ODB1] Chapter 6 - Persistent Objects

its containing object). 6.2  Object IDs and Names Identifying database objects by unique IDs and by names ... two identifying methods for database objects. The first method, object IDs, is supported by JDO. The second method ... . But, because these classes are not described in the JDO metadata files, the enhancer identifies them as not