db4o Developer Community

For a couple of years now, I've been going around the world and giving a talk entitled ''Pragmatic Architecture'', talking both about what architecture is (and what architects really do), and ending the talk with my own ''catalog'' of architectural elements and ideas, in an attempt to take some of the mystery and ''cloud'' nature of ...

It's once again that time of year, and in keeping with my tradition, I'll revisit the 2008 predictions to see how close I came before I start waxing prophetic on the coming year. (I'm thinking that maybe the next year--2010's edition--I should actually take a shot at predicting the next decade, but I'm not sure if I'd remember to go back and ...

Hi people, I've a small db4o database with 2k objects defined like:   public class Modelo {        public String Marca;        public String Nombre;        public String CodigoMarca;        public ...

It amazes me how insular and inward-facing the software industry is. And how the ''agile'' movement is reaping the benefits of a very simple characteristic. For example, consider Jeff Palermo's essay on ''The Myth of Self-Organizing Teams''. Now, nothing against Jeff, or his post, per se, but it amazes me how our industry believes that ...

Hola a todos, He creado una apliación de escritorio con C#.Net 2.0 para realizar la importación de datos desde una fuente externa a un fichero .yap. Este fichero me lo llevo a otra aplicación hecha con C#.Net CF 2.0 pero no veo ningúno de los objetos guardados por la primera. En la aplicación de CF obtengo todos los objetos con ...

Dustin Campbell, a self-professed ''IDE guy'', is speaking at the .NET Developer's Association of Redmond this evening, on the future of Visual Basic in Visual Studio 2010, and I feel compelled, based on my earlier ''dissing'' of VB in my thoughts of PDC post, to give VB a little love here. First of all, he notes publicly that the VB and ...

Hi, Recently we decided to evaluate how much impact (in performance) reflection represented in db4o. In .Net side we already knew (due to previous experience) that reflection is not as fast as we would like to. At the same time, profiling proved that reflection was not a bottleneck in Java side. So we settled up for trying to replace the ...

These are custom ASP.NET 2.0 providers which use db4o as back-end. Beginning with Membership Provider, Role Provider, and Profile Provider. Code is based on MSDN sample code and is unit-tested. Version 1.0 uses db4o 7.4 and C# 3.0. Prior versions of source use db4o version 6.1 and C# 2.0. http://www.codeplex.com/db4oProviders

As the popular saying  tell us, there's no such thing as free lunch. It is no different for work related subjects. When we introduced Transparent Activation (TA) concept we knew that it could make developer's life easier (by presenting a simpler model for object life cycle): developers would not be required to think about activation depths ...

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 going to write a simple contact management application in java and convert it to c#. While it is possible to use sharpen to convert a complete application it is advisable to handle this as an iterative ...