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8

Optimistic locking: prevent version increment on entity collection attribute

{ EntityManagerFactory emf = Persistence.createEntityManagerFactory("./test.odb;drop ... = Persistence.createEntityManagerFactory("./test.odb;drop"); EntityManager em = emf
8

Join performance in Objectdb

(                 "objectdb:$objectdb/db/test.tmp;drop");         EntityManager em = emf.createEntityManager ... (                 "objectdb:$objectdb/db/test.tmp;drop");         EntityManager em = emf.createEntityManager
8

failure to enforce NOT NULL for java.lang.String

.createEntityManagerFactory("target/test.odb;drop"); EntityManager em = emf.createEntityManager ... (                 "objectdb:test.tmp;drop");         EntityManager em = emf.createEntityManager();         em
8

IN expression in a Criteria Query

/test.tmp;drop"             );                 EntityManager em = emf.createEntityManager ... .createEntityManagerFactory(                 "objectdb:$objectdb/db/test.tmp;drop
8

Schema Update: class hierarchy change

    .createEntityManagerFactory("objectdb:$objectdb/db/test.tmp;drop");   EntityManager em = emf ... /test.tmp");   //no drop - reuse the existing file   EntityManager em = emf.createEntityManager
8

multiple LEFT JOINs do not work as expected

.createEntityManagerFactory(                 "objectdb:test.tmp;drop");         EntityManager em = emf ... = Persistence.createEntityManagerFactory( "objectdb:test.tmp;drop
1

Remove of an entry from a @OneToMany collection is not possible if the enhancer is disabled

/test.tmp;drop");   EntityManager entityManager = emf.createEntityManager();   ParentEntity ... =             Persistence.createEntityManagerFactory(                 "objectdb:$objectdb/db/test.tmp;drop
1

Use temporary files to enable very large transactions

:$objectdb/db/test.tmp;drop");   EntityManager em = emf.createEntityManager();   // Persist ... " programs="500" />                 <extensions drop="temp,tmp
1

Threaded Test - Failed to commit transaction: Unexpected internal exception

* 5 producers * 2mb) and when the consumers alone are running this should drop to a max ... ) After letting it run for a couple of minutes this drops down to a put/take every 10s or so: 2011
1

Issues with JDO Casting & Full Qualified Names

.createEntityManagerFactory("objectdb:$objectdb/db/test4.tmp;drop");   EntityManager em = emf ... .createEntityManagerFactory(                 "objectdb:$objectdb/db/test4.tmp;drop");         EntityManager em = emf

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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