db4o Developer Community

With LINQ to SQL, the query model is very explicit: if you make a query that can't be performed in SQL, an exception is thrown:    var results = from user in database.Users                     where Fobnicate(user.Name) == Fobnicate(''Jim'') // Exception: no SQL equivalent of Fobnicate                     select user;      But with DB4O, no ...

Hello, everyone, I have a problem with db4o 7.2 for .net, I want to use dRS to replicate objects of specified classes which is only part of the whole class library. for example, there're many classes in the class library: class1, class2, class3, ......, How can I only replicate objects of class1 not the whole class library? I think a proper ...

Hola, Estoy desarrollando una aplicación que necesita acceder a las clases de java de los objetos guardados en la base (db4o 6.4), es decir necesita acceder  a los objetos Class correspondientes. (No cuento con la definición de las clases en mi código, solo la base de datos) Tengo entendido que esto se debería poder hacer usando ...

Hi I just found out that db4o can't be started in client/server mode and grant access to a user if the configuration is configured to config.queries().evaluationMode(QueryEvaluationMode.SNAPSHOT);. This will result in the folowing exception. Exception in thread ''main'' com.db4o.foundation.NotImplementedException at ...

Initial support to enable the saving of custom database configuration settings has been added to community project ''Object Manager'' (OM) by OM CodeCommander Gisbert Avellan (gishac).You can check the progress of OM (or participate as a committer) through the Google Code site and you can also subscribe to the OM commit mailing ...

Is is possible to use ObjectManager to view a db4o container when that container uses a translator? I'm using ObjectManager  6.4.14.8131. I can view the container when I don't use a translator. But when I create the container using a translator, ObjectManager is unable to open it. It just hangs.  Also, Is there a way to configure a db4o ...

Hi everyone. I am a beginner in db4o. I have a problem in the visualization of objects using Object Manager 6.4.14 . The problem lies in that I can't see in depth what a specific object stored contains (for example I see a specific object ''pilot'', but I can't see the objects ''car'' belonging to that pilot). If I open the ''pilot'' I see ...

Hi everyone. I am a beginner in db4o. I have a problem in the visualization of objects using Object Manager 6.4.14 . The problem lies in that I can't see in depth what a specific object stored contains (for example I see a specific object ''pilot'', but I can't see the objects ''car'' belonging to that pilot). If I open the ''pilot'' I see ...

In this session Carl and Richard make the TypeHandler interface pluggable and set up the public API to be able to configure the use of custom Typehandlers. The session demonstrates that the process of discussing design decisions with the team can be slow. It also gives an introduction how to add additional configuration settings. (Watch on-line ...

Gente,     Hace 2 años atrás desarrollé una aplicación en JSF y db4o. Db4o no se bancaba la concurrencia en un ambiente web, asi que había que agregarle add-hoc unos listeners para que anduviese. Quería saber si la nueva versión sigue requiriendo estas dependencias.   Saludos!