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6

Entity can be found by find() but not by query

If transaction B started before transaction A committed, and it stored data using flush, then it may work
6

Inserted entities with strings as keys and indices needs more and more ram memory in comparing to primitive integers as keys and indices

primary key) will take less space. Use flush during large transactions with temp file enabled
6

Problem with @Basic(fetch = FetchType.LAZY)

(); em.persist(sample); em.getTransaction().commit(); em.flush(); em
6

Attempt to remove a detached entity object (error 613)

batch SQL operations before flushing the merge. So i could give you more informations
6

Cascading persistence through an inverse field

is retrieved (or refreshed) from the database after commit or flush. You may try synchronizing
6

Entity has be persistended,but query not fetched?

("$objectdb/flush.odb");         EntityManager em = emf.createEntityManager();         em.getTransaction
1

Blocked by find

- Error sending callback event rbccm.felix.framework.ApplicationException: Error flushing data
1

ObjectDB 2.2.4

using flush. Fixed bugs in cascading merge. Fixed a multithreading deadlock bug. Fixed a bug in using
1

ObjectDB 2.2.1

Added support for using ObjectDB with JBoss AS 6.0 / 6.1. Fixed several bugs in handling eager fetch. Fixed a pessimistic locking bug. Fixed a bug in using primary key fields in queries. Fixed a bug in queries on deleted objects before commit / flush.
1

ObjectDB 2.3.3

Improved compilation performance of OR queries with many elements. Fixed eager fetch of maps and nested embedded objects. Fixed a bug in removing a new flushed entity object before first commit (issue #562). Fixed a NullPointerException in accessing inverse (mapped by) collection fields

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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