Fast Object Database for Java - with JPA/JDO support

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2

Error 363 - Failed to read value of inverse relationship

) {         EntityTransaction tr = db.getTransaction();         try {             tr.begin();             db
2

Method Invocation On All Entities

part: em = emf.createEntityManager(); EntityTransaction trans = em.getTransaction(); trans
2

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

");     EntityManager em = emf.createEntityManager();     EntityTransaction tx = em.getTransaction
2

How to delete M2M relationship?

, Timeslot ts) { EntityTransaction transaction = em.getTransaction(); try
2

failure to enforce NOT NULL for java.lang.String

(); EntityTransaction tr = em.getTransaction(); Request r = new Request(); r.setUsername(null
2

"Attempt to lock a non entity object" error

JDO Transaction, and then beginTransaction(), lock(), and rollback() on a JPA EntityTransaction
2

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.

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