6.4 Stable - Release Notes

The full list of issues resolved for 6.4 Stable Release is presented below. COR-878 - Simplify Typehandler4, remove readQuery(), readSubCandidate() COR-873 - Simplify Typehandler4, remove classReflector(), getID(), linkLength() COR-871 - .net packages should include the full version name (e.g.: db4o-net2-6.4.8.2078.msi, db4o-net2-6.4.8.2078.zip) COR-870 - add svn.revision to Db4oVersion COR-860 - NewTypehandler: Database file creation for upgrade tests COR-859 - TypeHandler upgrade tests for short long float COR-856 - TypeHandler upgrade tests for int COR-855 - TypeHandler Version sets to replace MarshallerFamily COR-854 - drs.dll product version is 1.0.0.0 COR-853 - dRS .net file size is not correct in the download center COR-852 - .net document problems in 6.3 release COR-851 - some tutorial problems in 6.3 release COR-850 - Db4oService java doc: bad format COR-849 - Javadoc problems in 6.3 release COR-847 - No copyright in api d ... Read the rest of entry »

7.2 Production - Release Notes

The full list of issues resolved for 7.2 Production Release is presented below. COR-1173 - OSGi class loading configuration fails when global configuration is used COR-1166 - for db4o-7.2.30.10211-net35.msi 1 test case fail COR-1165 - For db4o-7.2.30.10211-net35.msi Unable to load Db4objects.Db4o.Linq.Tests-2008.sln inside \src\Db4objects.Db4o.Linq.Tests COR-1164 - For db4o-7.2.30.10211-net35.msi no Db4objects.Db4o.Tests-CF-2008.sln inside \src\Db4objects.Db4o.Tests COR-1162 - Couldn't build db4otools project for 7.2.30.10211 java build COR-1159 - For db4o-7.2.30.10211-net35.msi in readme.html under \db4o-7.2\src has missing information COR-1156 - db4o -7.2.30.10211 java, .NET release build errors COR-1155 - LINQ constraints in VB COR-1147 - Solution doesn't compile COR-1146 - db4o.chm documentation is not generated COR-1145 - Issues in the .NET 35 LINQ build COR-1141 - Produce plan for Generic Collections and Fast Collections COR-1140 - Blog ... Read the rest of entry »

dRS does collections

dRS - db4o Replication Services - is a framework for building applications that synchronize objects bi-directionally between databases. Until recently, dRS' approach to collections followed the minimum common denominator rule - only a small set of collection types known to be supported across data stores was used for replication. One consequence was that during the replication of any kind of list container between two databases, dRS would give the receiving end an ArrayList instance (java.util.ArrayList for java and System.Collections.ArrayList for .net) no matter what the concrete type of the list was at the originating end. For simple scenarios this could be enough but a more round approach to collection handling was long awaited for. The wait is over. dRS will now preserve collection types across databases unless the data source itself indicates otherwise - it would not make sense to replicate a Hibernate collection proxy such as PersistentList unchanged to a db4o container for instance. For more on dR ... Read the rest of entry »

Try IO Benchmark Live

This post has introduced IO Benchmark to db4o users. IO Benchmark is a great tool that allows you to predict your application performance not only on your desktop, but on a slower target device too. If you still did not try it and may be are frustrated about the necessity to learn the new API, there are some good news: you can try it alive without any effort. IO Benchmark is now integrated in db4o interactive tutorial. All that you need to start benchmarking is to download the latest db4o release and start the tutorial. IO Benchmark chapter runs a real-time benchmark for your system and for an example slow target system with a click of a button. You can also simply transfer the tutorial code to run a benchmark with your real application and real objects. Read the rest of entry »

A Linq Playground For You

Adriano has just published a very cool article demonstrating how to implement an interactive query console using Linq for db4o:In this post we'll implement a very basic Linq Console application that supports "ad hoc" queries allowing users to enter Linq queries and run them against a db4o database. Our main goal is to show how such mechanism can be implemented on top of Linq/Db4o. Check it out!  Read the rest of entry »