I'm struggling to come up with a good way of adding a bidirectional relation in OO model. Let's say there is a Customer who can place many Orders, that is to say there is a one-to-many association ...

I am evaluating two object databases, db4o (http://www.db4o.com) and Eloquera Database (http://eloquera.com) for a coming project. I have to choose one. My basic requirement is scalability, multi u...

We're evaluating db4o (an OO-DBMS from http://www.db4o.com). We've put together a performance test for client/server mode, where we spin up a server, then hammer it with several clients at once. It...

I'm currently doing some research on usage of db4o a storage for my web application. I'm quite happy how easy db4o works. So when I read about the Code First approach I kinda liked is, because the ...

I have an object model that I want to store using an embedded database. I have so far been looking at db4o, NHibernate to SQLCE (w/ linq), and RavenDB. This would be used in a desktop C# applicatio...

I am trying the db4o object databse and so far I quite like what I am seeing, but I also read this post on stackoverflow db4o experiences? indicating that not everything that seems so easy is easy....

It's a very common situation, but I'm kinda new using ORM especially in Android, so your help would be awesome. Scope: Object, e.g. Message has primitive fields and field (child) of another object...

I've used db4o with much success on many projects in the past. Over time it seems to have evolved greatly, and with modern trends like LINQ on everyone's tongue it has peaked my interest again, esp...

I will plan to use Redis (ServiceStack) as whole database for web application. I can insert 76000 records in 7.4 seconds. But using single connection (RedisClient object-life-time is Application),...

I am using two different ways to query objects in db4o and I would like to discuss about it. 1) In this first example, I create an instance of ObjectContainer, I open the connection, and then I cl...

I'm intrigued to test new frameworks in the Java world, and decided to create a new project that takes advantage of Maven and db4o. I'm starting to get a hang of Maven, but I have a hard time addin...

What is the difference between graph-based databases (http://neo4j.org/) and object-oriented databases (http://www.db4o.com/)?

Object databases like MongoDB and db4o are getting lots of publicity lately. Everyone that plays with them seems to love it. I'm guessing that they are dealing with about 640K of data in their samp...

I'm playing around with db4o, and I have the Object Manager viewer thingy for Visual Studio. It seems okay, but not exactly on par with tools like HeidiSQL/SQL Studio/etc., not to mention tha...

One thing I have continually found very confusing about using an object database like db4o is how you are supposed to handle complex migrations that would normally be handled by SQL/PL-SQL. For e...

I'm trying db4o and i'm having bad performance when using linq to db4o. (using 7.12) Here is my configuration : var configuration = Db4oFactory.Configure(); configuration.ObjectClass(typeof(MyT...

I'm very impressed with my initial tests with db4o. However, i'm wondering just how many enterprise class websites are out there powered by db4o, i couldn't see any on the main website? I can't s...

I thought it was about time to have a look at OO databases and decided to use db4o for my next little project - a small library. Consider the following objects: Book, Category. A Book can be in 0...

How do you pass a class type into a function in C#? As I am getting into db4o and C# I wrote the following function after reading the tutorials: public static void PrintAllPilots("CLASS HERE", s...

Is there any way to completely disable Java security manager? I'm experimenting with source code of db4o. It uses reflection to persist objects and it seems that security manager doesn't allow re...

I'm new to OODBMS systems, but I'm using Db4o on a new project for which it's perfectly suited. Things are going great and I really like the concept, but I'm struggling with how to do basic data ma...

Say you're coding some kind of web application. Something where people can contribute content, e.g. a simple photo-sharing site. How many good reasons can you think of to not go with an object-ori...

I'm currently trying out db4o (the java version) and I pretty much like what I see. But I cannot help wondering how it does perform in a real live (web-)environment. Does anyone have any experience...