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db4o open source object database, native to Java and .NET
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Welcome  to the world's largest user community for object database technology!

Learn, contribute, and enjoy your exchange with more than 30,000 registered peers, who want to bring object oriented programming to the next level - the database - and leave the era of the object-relational mismatch, tedious O/R mappers and roll-your-own-databases behind them!  Join the developer community now - it's fast, easy, and free.

In the Community

  "An introduction to LINQ for db4...
Dutch senior web developer Edwin Vermeer just published a demo web application on The Code Project for demonstrating the power of LINQ for db4o. In order to show the most basic operations the demo solution includes a very simple console application that...
 

db4o Projects Spotlight

Object Manager initial support for encryption

Gisbert Avellan (gishac) just added an initial support for encryption to the community project "Object Manager" (OM).
You can check the progress of OM (or participate as a committer) through the Google Code site and you can also subscribe to the OM commit mailing list here.
Your feedback and support is highly appreciated. Thanks a lot gishac!!!

Product News

 
As of Today our so far internal java to c# conversion utility, sharpen, is being released as free software. As an example of its usage we're ...
 
The full list of issues resolved for 6.4 Stable Release is presented below. COR-878 - Simplify Typehandler4, remove readQuery(), ...
 
The full list of issues resolved for 7.2 Production Release is presented below. COR-1173 - OSGi class loading configuration fails when ...
 
dRS - db4o Replication Services - is a framework for building applications that synchronize objects bi-directionally between databases. ...
 
Today Google released the Android SDK, an application development stack for mobile devices. Great news for us: The programming API is plain ...
 

Recent Activity

LINQ - Language INtegrated Queries - are a developers dream come true. Queries are an integral part of the primary programming language. They are typesafe, compile-time checked, refactorable and autocompleted by the IDE. If you want to read up more on...
Dutch senior web developer Edwin Vermeer just published a demo web application on The Code Project for demonstrating the power of LINQ for db4o. In order to show the most basic operations the demo solution includes a very simple console application that...
LINQ for db4o is extremely easy to use and very powerful. The learning curve is very low. This publication only scratched the surface of the possibilities of db4o. If you are trying to compare it with the RDBMS that you now use then you definitely have...
At April the 4th, 2008, developers from Xebia Group (a specialist software house devoted to enterprise Java architecture, middleware, portal and integration technology) held another Tech Rally (a whole day of technical training for the whole Xebia's Software...
Whenever I have spent too much time in front of a computer, it's a healthy exercise to create something with my hands. Here is a picture from my most recent project: The reading corner in front of the fireplace is now surrounded by a new bookshelf. I...
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Active Forum Threads

updating without retri...
Transparent Persistenc...
Lost data between call...
Server messages
Sharpen Annotations
Sharpen Command-Line A...
Pilot.Java
PersistentExample.Java
sharpen.zip
build-net.xml