db4o :: Product News BlogIn this blog we publish news on db4o's open source object database engine relevant to all platforms (Java, .NET and Mono). We syndicate this content with the platform blogs, so you might just look at them:
<ul>
<li><a href="http://www.db4o.com/community/blogs/product/java/">Java Product News Blog</a>
<li><a href="http://www.db4o.com/community/blogs/product/dotnet/">.NET Product News Blog</a>
<li><a href="http://www.db4o.com/community/blogs/product/mono/">Mono Product News Blog</a>
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trueChristof Wittig2006-05-14T19:14:00-07:002006-05-15T02:15:00Z2006-05-15T02:15:00Ztag:blogger.com,1999:blog-10767508.post-114765930081825733We have moved!db4o Product related news now on:
http://developer.db4o.com/blogs/product_news/falseCarl Rosenberger2006-04-29T11:00:00-07:002006-05-01T15:23:08Z2006-04-29T18:43:31Ztag:blogger.com,1999:blog-10767508.post-114633621155416537db4o 5.3 development releasedb4o version 5.3 has been made available on the db4o downloadcenter page.
The new alias feature to translate classes, namespaces and package names between application and database opens a wide range of usecases. Here are some examples:
// Creating an alias for a single class
Db4o.configure().addAlias(
new TypeAlias("com.f1.Pilot", "com.f1.Driver"));
// Accessing a .NET assembly from a JavafalseCarl Rosenberger2006-02-24T09:34:00-08:002006-02-24T18:30:12Z2006-02-24T18:20:14Ztag:blogger.com,1999:blog-10767508.post-114080521465473112db4o 5.2 production releasedb4o 5.2 is now available as a production release.
- We have been working hard on optimizing insert, delete and commit performance. Our results for running multiple db4o versions against the PolePosition benchmark show excellent improvements. db4o 5.2 is considerably faster than db4o 4.6, even if FlushFileBuffers is turned on with our new release and turned off with the old one.
- Quite a lot offalseCarl Rosenberger2006-02-02T04:55:00-08:002006-02-02T12:56:19Z2006-02-02T12:56:19Ztag:blogger.com,1999:blog-10767508.post-113888497953097539db4o 5.1 dev with full Native Query support for MonoOur 5.1 development build available in the download center area of our website finally also fully enables Native Queries on Mono.
It took us quite long to get this out because our code stumbled across a bug in the Mono compiler: It did not understand the acyclic Visitor pattern that we used in the Native Query optimizer. After changing the pattern everything works fine now and all regressionfalseCarl Rosenberger2006-02-01T11:15:00-08:002006-02-01T19:16:15Z2006-02-01T19:16:15Ztag:blogger.com,1999:blog-10767508.post-113882137516625601db4o Replication System (dRS) powered by HibernateA first development release of db4objects' new db4o Replication System (dRS) is available for download.
dRS provides bi-directional object synchronization functionality for db4o object persistence systems and Hibernate relational persistence systems.
dRS brings the best of both worlds together:
Your enterprise data can stay where it is, in your existing relational database. On your clientfalseCarl Rosenberger2005-11-15T16:01:00-08:002005-11-16T00:11:57Z2005-11-16T00:11:57Ztag:blogger.com,1999:blog-10767508.post-113209991778778555db4o 5.0 production releaseThe db4objects team is proud to announce the release of db4o 5.0 to production with a great innovation: Native Queries.
The benefits of using Native Queries:
- 100% compile time checked
Since all query code is written in your programming language (not in strings) all syntax errors will be detected by the compiler.
- 100% object-oriented
Native Queries allow you to use the full power of yourfalseCarl Rosenberger2005-10-31T02:35:00-08:002005-10-31T10:37:27Z2005-10-31T10:36:17Ztag:blogger.com,1999:blog-10767508.post-113075497742540850db4o 5.0 dev build featuring optimized native queriesA first development build of db4o 5.0 is available for download. It includes a first optimized implementation of native queries.
Native queries provide the simplest syntax possible to express code that is to be run against all instances of a class (an extent) from within a query. db4o analyzes .NET IL code or Java byte code of native query expressions and runs queries with maximum performancefalse