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Java 6/7 Performance Comparison

it has to be something other than java 7 but having trouble narrowing it down. Attached

Cascade delete with unidirectional mapping

    Suppose entity A is referenced from entity B, like (A -> * B) but not actually having that reference, instead only B has @ManyToOne relationship to A and A has none. Is there a way to cascade delete of B's when deleting A? Or

Maven and multiple JARs

more specific project: SpecEnt, SpecEJB, SpecWeb (downstream). Just having 2 different

Spring 2.5 LocalContainerEntityManagerFactoryBean, no getSharedCacheMode()

I'm trying to setup Spring + JPA + ObjectDb in my test environment and having trouble with the following: <bean id="EnvDMSEntityManagerFactory" class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean"> <property name

What role is the JDO in ObjectDB?

Mike Keith believe the JDO is out of date. Then what role of JDO in ObjectDB? Will our codes with JDO be out of date? Due in part to some of the failures of the EJB persistence model, and some frustration at not having a satisfactory

String representation of a query

Hi, Is it possible to get a JPQL string having a Query object instance? JpaQuery class doesn't have any method like "getQueryString" or "getDatabaseQuery", maybe it's going to be added in near future? It would be very useful to have something similiar to :

Trouble bug on explorer

Hello having trouble when i try to push new objects from class. I got exception from explorer. KadirBASOL:bin apple$ java -jar explorer.jar Jul 19 20:00:52 KadirBASOL.local java[9942] <Error>: CGContextGetCTM: invalid context 0x0

Embedable & Reference?

> This is one of the consequences of not having an identity for embedded objects.

Exception when the log file is full and no archive is defined

directory is indeed considered a user error, as the limit is directly associated with having a valid

Error during closing an entity manager

> The exception may be due to having partial enhancement. Mixing enhanced entity classes with non