Newsletter :: February 2011
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db4o 8.1 Development Release is available for
You might also want to download the updated production v8.0 (and check the release notes) and also maybe grab the latest stable release v7.12 (and the release notes).
from the Community Projects Blog
- Rich Clone Format (RCF) helps detect duplicated code and uses db4o: Rich Clone Format (RCF) is part of a framework to detect code clones - passages of duplicated code in software - which are a common problem in software engineering that often threaten the quality of the system. The RCF is a data format for exchanging and analyzing code clone data. It implements a data model to ease analysis persisted by db4o and comes with an API. RCF ist developed by the Software Engineering Group at the University of Bremen, Germany.
- Simple embedded db4o repositories (C#): In a follow up to his DDD/CQRS series of blogs Elliot O'Hara shows us how he implements db4o repositories following the Repository pattern. With just two simple interfaces and properly implemented classes Elliot shows us how to abstract db4o and make things really simple.
- Coincidental: a db4o C# wrapper for web-based game engines: Coincidental is a db4o concurrency and persistence wrapper for C# that provides concurrent-read/single-write access to objects for use in web-based game engines. It provides automatic transparent persistence without requiring post-build manipulation.
- UsefulDb4o: db4o-on-.NET library videos: Not long ago we announced UsefulDb4o, a community contributed open source base class library for developers working with db4o the .NET framework that consists of a few classes and features which can help you improve your work. Now the author has created these videos to provide you with a walk-through.
- db4o Netbeans Plugin: video: Check out the video contributed by db4o community member Roberto Riquelme that shows how to set up the db4o Netbeans plugin. This plugin was kindly contributed by Gerd Klevesaat back in 2007 and is open source.
- iTraveller author's search for a database ends with db4o: A really nice blog post by Sony Arouje (author of iTraveller). He makes some good points about why he decided to go with db4o after evaluating several database technologies (even NoSQL's MongoDB).
- Versant and Feaunhofer Fokus demonstrate power of object databases to deliver IPTV services - The two partners benchmarked the use of Versant’s Object Database (VOD) within the Fraunhofer FOKUS Open IPTV Ecosystem, achieving impressive results in two vital use cases compared to Oracle's MySQL, a traditional relational database. In the first test, delivery of complex broadband content guide (EPG) information was eight times faster using Versant’s object database, while in the second test, researchers noted a 50% improvement in speed while controlling IPTV services. This translates into faster performance for consumers accessing IPTV services and an ability for content providers to deliver robust, scalable services using less processing power and hardware in a cost effective manner.
"db4o: powerful yet simple to use database, allows application defined, class models to represent your database schema."
— Chaochou2 (Twitter user)
With best regards
The db4objects team.
a division of Versant
255 Shoreline Drive, Suite 450
Redwood City, CA 94065