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About memory

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1

Is there any faster select method?

the way, an invocation of persist is very fast because it is a memory operation, so actually
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Issue with orphanRemoval and multiple EntityManagers

performance and in memory consumption, so it is highly recommended to use only enhanced classes in
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JDOHelper.isDetached failure ?

practical to support it for non enhanced classes, without causing a memory leak. ObjectDB
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JPA and handling large data sets

. But exporting large binary data sets is very slow. To avoid memory problems the binary data type is read step
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List managed entities for a given entity manager

Hi, Is there a way to find the number of managed entities given an entity manager? My application has some memory leaks - I am doing clear() on the entity manager(s) but may be I forgot some - so if there is a way to know how many entities are managed by each my entity mgr - it would be helpful
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1

Merge of entity classes with "mapped by" very slow

where 'child' part of relation have almost 10k objects, so merging parent is also memory inefficient. Merging
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Monitoring and Performance counters

last start - caches hit rate - total sessions from clients - memory usage (for heap space tuning
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1

multi thread application, id field sporadically null

every object retrieval is setting the id. Maybe you retrieve a cached object from memory, which is a new object
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1

Multithreading Test and Deadlock

because of higher memory usage (4 x 10,000 x 100 strings x attribute length => many MBs). Thanks. It solved the dead lock. edy_at_ssn
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1

Navigation through lazy loading from Detached Objects

yet, but for example, it could affect memory consumption and file closing if detached objects