ObjectDB ObjectDB

Internal Website Search

31-37 of 37 resultsRefresh
11

Error 363 - Failed to read value of inverse relationship

) {         EntityTransaction tr = db.getTransaction();         try {             tr.begin();             db
11

Method Invocation On All Entities

part: em = emf.createEntityManager(); EntityTransaction trans = em.getTransaction(); trans
11

Cascading merge() leading to "Attempt to persist a reference to a non managed instance" error

");     EntityManager em = emf.createEntityManager();     EntityTransaction tx = em.getTransaction
11

How to delete M2M relationship?

, Timeslot ts) { EntityTransaction transaction = em.getTransaction(); try
11

failure to enforce NOT NULL for java.lang.String

(); EntityTransaction tr = em.getTransaction(); Request r = new Request(); r.setUsername(null
11

"Attempt to lock a non entity object" error

JDO Transaction, and then beginTransaction(), lock(), and rollback() on a JPA EntityTransaction
11

zip file or JAR manifest missing

operation. public class PageTest { protected static EntityTransaction trans = SingleManager.getTrans

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.

Need Help?

  1. Search ObjectDB website
  2. Read the FAQ
  3. Follow the Tutorials
  4. View or post in the forum
  5. Search or file an issue
  6. Contact support