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OptimisticLockException

the conf file? With pessimistic locks - the object is locked when it is retrieved ... is globally locked at the database when retrieved from L2 cache ? b) If process B attempts to modify object after it is retrieved by process A, does process B block, or fail with an exception? If B blocks
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SectionClassifier message in log

I'm trying to track down an issue in an application - the problem occurs around the retrieval ... -9b7b-8e27bf4bd91c'->merger[3477129]-missing:1713} It indicates that retrieval of a large object ... the application on object retrieval is: Caused by: rbccm.felix.framework.ApplicationException: Error flushing
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String Encoding Issue

Hi all Encounter a character encoding issue when i try to retrieve a String column containing Chinese character. Retrieve a String column on odb file.  em = emf.createEntityManager(); Query query ... not modify strings - when you retrieve a string from an ObjectDB database you should get exactly
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TimeSeries and ObjectDB

to the TimeSerie entity - I currently have to retrieve the whole timerserie since beginning of time ... it terms of space and retrieval speed but may be more expansive in updates. See a recent forum thread ... terminology is) - so do i really need a parent object? Is it faster for queries? Thanks   Retrieval
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Unable to persist TreeMap

.class, 1);         System.out.println("Retrieved memberships: " + p.memberships);         emf.close ... Association=President} Retrieved memberships: {}   Just tried and the output is as expected: Created memberships: {Bar Association=President} Retrieved memberships: {Bar Association=President
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ClassCastException of same object type

and retrieving objects ok in the main project. However, when I make a plugin for the project, the new objects are persisted but not retrieved. I get the following error: java.lang.ClassCastException: org ... then get the exception.  The retrieved object seems to exist only as an ICoreObject, not as a XCCompetitorCount
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Fetching Collections Puzzle

retrieve the Nodes stored in this list. Because no matter what I try, if I dont declare the FetchType to Eager, the children field of all my retrieved nodes are of size zero When I declare the FetchType as Eager, then isn't the database actually retrieving the whole graph stored in the database
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find() cost unreasonable time!

"? TIA It means loading the graph eagerly (see Retrieval by Eager Fetch in the manual). the effect ... ()? Find is very efficient in retrieving a single entity object but less efficient when you need to retrieve many entity objects (524,290 in your test). In that case - you should use a query. Eager
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Is it possible to commit only specific elements?

, retrieving only the needed ones, creating new ones (which I want to commit), detaching the ones I've previously retrieved and finally committing. My context is big data and performance is an issue ... the persistency context and retrieving/creating only the required entries.  I
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Level 2 cache not hit in @ManyToOne

cache is to improve performance mainly by minimizing client server round trips. Therefore, retrieval ... between objects which requires transparent retrieval of referenced objects, always uses the L2 ... . However, in that case, if not all the results are cached, retrieving them later may require