Fast Object Database for Java - with JPA/JDO support

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database version

Is there some way of telling, just from an obd database file, what version it is? dmoshal David Moshal An ObjectDB 2.x database file has no version, at least from the point of view of ObjectDB users. You should be able to use the same database file with different versions of the ObjectDB 2.x software. support Support

Free version limitation and upgrading

Hello i would like to use objectDB in Free Version until its not getting in Productive phase... Now my (maybe Stupid) Question because i did not found a good definition. How Do you (for the Free ... a site license you have it for life, including update to the same major version (e.g. all 2.x updates). support Support

Collision Between Different Schema Versions of Entity Classes

Version 2.8.4 fixes a critical bug that in rare cases may cause collision between different schema versions of entity classes, when schemas have changes many times (usually more than 20 times). This bug mainly affects queries on hierarchy of multiple entity classes (i.e. a query on a super class

ObjectDB version 2.2 has been released

of version 2.2 in repair mode on existing database files, and to switch to the new database files that are generated by the Doctor when moving to version 2.2. support Support

In version 2.5.2_05 does not work greatest by Date

In earlier versions this query worked fine. In version 2.5.2_05 does not work .orderBy(cb.desc(cb.greatest(root.get("createDate").as(Date.class)))).distinct(true) Thank you for your help. galandor Orlov Sergey Please try build 2.5.2_06 that should fix this regression (of casting to Date). support Support

Future JDO versions?

versions: ? sjzlondon Steve Zara Development of JDO in ... version of ObjectDB. Same is regarding automatically generated UUID. Other features

A bug in the JDOQL processor in recent versions of ObjectDB

There seems to be a bug in the JDOQL processor in recent versions of ObjectDB. I've uploaded a "laptop" example to demonstrate the problem. The query in Test1.main should return "ThinkMachine MAX SX 20", but it returns incorrect "Media Central Media 555". Earlier versions (at least up to 2.5.4

Collection update does not increase entity version and is not persisted

(all classes are enhanced) the version of the event does not increase and the updated event is not stored ... . Will there be a fixed version anytime in the near future? Thanks in advance Markus doppelrittberger Markus

Which version of JDO should I use with ObjectDB?

I have defined a number of JDO indexes on my persistent class, so would like to know which is the preferred version of JDO to use e.g. is it jdo-api-3.1.jar? Thank you paul Paul Hudson ObjectDB 2.x uses JDO 2.2. support Support

Optimistic lock failed : object has version .. instead of ..

has version 125 instead of 126) (error 673) at com.objectdb.jpa.EMImpl.beforeCompletion(

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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