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Server connection management

++)         {             EntityManager em = emf.createEntityManager();             em.getTransaction().begin();             em

Mapped (Inverse) LAZY @OneToMany vs. Unmapped LAZY @OneToMany

.getTransaction().begin();         A a = new A("aOwner");         a.listA_mapped = new ArrayList

Entity has be persistended,but query not fetched?

().begin();                 User user = new User();         em.persist(user);         Query query

Possible issue with timestamps

.getTransaction().begin();         CDI cdi1 = new CDI("first1", "last1", cal1.getTime());         CDI cdi2 = new

Removing an entity throws exception

:     em.getTransaction().begin();     try {      //c = em.merge(c);      em.remove(c);      em

Memory Leak?

.getTransaction().begin();    q1 = em.createQuery("SELECT d FROM Device d WHERE d.deviceId = ?1");    //q1 = em

Replication error on slave restart

since begining of the test. And now I have trouble that worry me a lot! In february I switched ODB server

ORDER BY problem, when String starts with language specific character

");         EntityManager em = emf.createEntityManager();                 em.getTransaction().begin();         em.persist

how to query by properties of onetomany relations? (Error 990)

.createEntityManager();                 em.getTransaction().begin();         Foo foo = new Foo

Getting an error when adding activation code to conf file

.createEntityManager(); em.getTransaction().begin(); IntStream.range(0

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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