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1

Different behavior with persist() and queried instances?

the object instance after inserting it into the database everything is perfect -- in debugger
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Efficient query on EmbeddedId

@Indices({@Index(members = {"id.field2"})}) or do I have to duplicate entity.id.field2 into entity ... . Thank you. I understand. Another question about indexes: is there any insert/query performance
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1

JBoss 7 startup fails

of this project. Thanks,  I downloaded guestbook-web.zip (the maven project) and imported it into ... it worked inserting the following datasource in pesistence.xml java:jboss/datasources
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1

Need help to analyse very high memory usage by objectdb (PRU, SEV, VAL[])

Hello, we have a useCase in which we consume too much memory and run into a "GC overhead limit exceeded" exception. Nearly 90% of the memory are taken by com.objectdb.o.PRU (49%) com.objectdb.o.SEV ... []) has been created. This may be caused by large insert / update transactions, with large amount of data
Issue
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NullPointer running multiple client against server

messages. The message is split into a lightweight metadata message to allow fast searching and a more heavy weight data message. The put methods are shown below. The message is made up of an id, insert
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1

ObjectDB JDBC to Object compiler

"insert into ObjectT values('hasan','test')" to ObjectT obj = new ObjectT("hasan","test"); em.persist
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1

Optimization Question

which approach would be better and with about 100 other things to work on that falls into the category ... of insert/update/delete operations significantly. It might boost performance, especially in a scenario as you have described. carr.onstott
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1

OutofMemory error with Object DB 2.0

and inserts 200 records at a time. The transaction obtained from the PersistentManager is commited ... , but cannot connect to objectdb.com Our IT team is still looking into it.   Meanwhile other users used
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Selective merge/cascade of detatched entity

salesman back into the database to keep it in step. The code i have to do this is akin ... fact, a more useful snippet for improvement would be where I'm inserting a new company each time
JPA Doc
1

getIdentifier(entity)

Method javax.persistence.PersistenceUnitUtil Object getIdentifier(   Object entity ) Return the id of the entity. A generated id is not guaranteed to be available until after the database insert has occurred. Returns null if the entity does not yet have an id. Parameters: entity - entity instance