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db4o 7.4 Development Release is available for immediate
download!
Articles
Object Manager Enterprise (OME) for Java and .NET Released
- Object Manager Enterprise (OME) is the database browsing and maintenance tool every professional software shop needs when developing db4o based applications.
- "Production Level" version (7.2) of Object Manager Enterprise (OME) for Java with Eclipse plugin is now released. Full OME functionality requires a license (you may contact one of our sales representatives to get one). OME is also usable in "reduced functionality" mode without a license.
- Together with the Java version we're also offering a much enhanced "Production Level" version (7.2) of OME for .NET with Visual Studio plugin
that can be downloaded under the same conditions.
- Plugins for OME for .NET and Java for the current db4o "Development Release" (7.4) are also ready for download.
- And remember that non-commercial open source community version of Object Manager (OM) is also available and is actively maintained by the db4o community.
Final Month for Performance Challenge with $6000 in Prizes
db4o Welcomes our Most Valued Professionals (dVP) for 2009
- In order to recognize the effort of a group of people whose work has been particularly valuable to the project, db4objects nominates community members each year for the dVP awards. Now it's time for the 2009 nominations!
- db4objects would like to congratulate all the nominees and thank you for your commitment and support. The 125 individuals representing 32 different countries are now listed on the dVP 2009 web page.
- Three of the 2009 dVPs will be invited to attend the next db4o Global User Conference (date and location to be disclosed soon) among other prizes.
- Read more about the dVP Program, its benefits, the selection criteria, and the list of all dVP award recipients
in our dVP section.
Transparent Persistence and Transparent Activation in Practice
OMG Leaning towards the LINQ Way to a OODBMS Standard
- Not having a standard query language for object databases has been a stumbling block for OODBMS adoption.
- The OMG is working on creating such a standard (see the OMG activities).
- In the last meeting in Ottawa in June, the committee has viewed LINQ (on .NET) as the way to go for the standard.
- LINQ is a
Native Queries approach combining Relational and Object Database Queries into a unified native interface, which has been accepted very enthusiastically by the community.
- db4o is full heartedly supporting this direction, and has been first to release an
optimized provider for LINQ.
- We would like to hear your opinion on the LINQ for Java group.
Highlighted Contributions
- A Quick Database Comparison of db4o and SQL Databases through Cayenne: Peter Karich, creator of the gstpl project (Swing Timetable Platform), released this comparison as a PDF file. Note that the fact that activation with db4o has to be always manual is no longer the case after we introduced Transparent Activation.
- Users comment on O/R Impedance Mismatch: ODBMS.ORG, a vendor-independent non-profit group of high-profile software experts lead by Prof. Roberto Zicari, announced the exclusive publication of a new series of user reports on using technologies for storing and handling persistent objects.
- DataNucleus: DataNucleus Access Platform 1.0 M3 is released. The main things affecting usage with db4o are:
- The original JDOQL implementation has been superceded by a new "generic" implementation supporting more of the JDOQL syntax.
- Support for querying via JPQL is added.
Paircast of the Month
- "JProbe Profiling Session on Reflection and Read Performance" In this session Carl and Rodrigo use the JProbe profiler to analyse how reflection impacts the read and write performance of db4o for Java. They discover that the impact is very small and find a potential area to tune activation performance. For a list of the latest resources about JProbe please check our JProbe wiki space.
"Paircasts" are video recordings of "live pairing sessions" of db4o core team, designed to provide deep understanding of db4o code and practices. You can download the paircasts or see them on-line and subscribe via RSS, iTunes, etc.
Kudos of the Month
"db4o is the storage solution that actually saves you time! It’s the best time saving tool I've found for developers that need persistent storage in their applications"
Carlos J. Muentes (Software Engineer)
Looking into the Mirror
InfoWorld awards db4o with "Best of Open Source Developer Tools"
InfoWorld. August 4, 2008
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With best regards
The db4objects team.
www.db4o.com
newsletter@db4o.com
Phone +1 (650) 577-2340
1900 S Norfolk Street, Suite 350
San Mateo, CA 94403 (USA)
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