About unique

release

2.4.2

... ( issue #78 ). Added support of @Column(unique="true") and equivalent ORM XML ( issue #79 ). Fixed ...

 
release

2.4.3

... ( issue #78 ). Added support of @Column(unique="true") and equivalent ORM XML ( issue #79 ). Fixed ...

 
release

2.4.4

... ( issue #78 ). Added support of @Column(unique="true") and equivalent ORM XML ( issue #79 ). Fixed ...

 
forum_thread

em.flush(); em.clear(); loosing data and not persisting managed objects

I'm having trouble with flush() and clear() in a loop inside a transaction not persisting modified objects to database. Sometimes it does other times it doesn't. Here is my Entity. ... object that is always a 40 digit hex string and should be unique among the key fields.   For one of those three ...

 
release

2.4.1

... ( issue #78 ). Added support of @Column(unique="true") and equivalent ORM XML ( issue #79 ). Fixed ...

 
api-jdo

javax.jdo.PersistenceManager

PersistenceManager is the primary interface for JDO-aware application components.(Interface of JDO)

 
forum_thread

Externalising persistence.xml properties in Glassfish?

Hi, ... a persitance unit for every environment you want that has unique configuration and be sure to give it a name, this is a requirement if ...

 
forum_thread

IN expression in a Criteria Query

Hello, I am trying to migrate my Spring project from Hibernate to ObjectDB. On ObjectDB page, it is written that ObjectDB is 100% compatible with JPA. However, I have problem with this JPQL query: SELECT e FROM Employee e WHERE e.present = false AND NOT EXISTS (SELECT c FROM Computer c WHERE c.employeeEntity = e) ORDER BY e.name with Hibernate, there was no problem with this query, but ObjectDB throws exception: ... The properties that are used for grouping (each group has unique value combination). Aggregate calculations (count, ...

 
release

2.4.0

... ( issue #78 ). Added support of @Column(unique="true") and equivalent ORM XML ( issue #79 ). Fixed ...

 
issue

NullPointerException when using multithreading

[ObjectDB 2.4.4_08] Unexpected exception (Error 990)   Generated by Java HotSpot(TM) Client VM 1.6.0_29 (on Windows 7 6.1). Please report this error on http://www.objectdb.com/database/issue/new com.objectdb.o.InternalException: java.lang.NullPointerException: null java.lang.NullPointerException at com.objectdb.o.ENT.C(ENT.java:557) at com.objectdb.o.OBM.bz(OBM.java:385) at com.objectdb.o.OBM.bz(OBM.java:261) at com.objectdb.jpa.EMImpl.persist(EMImpl.java:377) at ... ... jar.  The test application will add one million unique entities to the database.  Based on the implementation, you will ...