db4o: Persistent Classes Tips
In the last four posts I’ve mostly talked about db4o itself and how to used it. All this is actually just the necessary evil for our goal, to persist our…
Read moredb4o: Transactions
So I showed the basics, explained the activation-system and pointed out how db4o manages object-identities. So far so good, but I’ve never explain a very important feature of most databases, the…
Read moredb4o: Object-Identity and High-Level-Caching
In the last two posts (#1, #2) we never ever used anything like an id for any object. So how the hell does db4o identify objects? How does it ensure…
Read moredb4o: Activation- & Update-Depth
Activation is a very basic concept in db4o. In this post I’ll illustrate what it is, why it’s there and how you handle it. (All posts of this series: the…
Read moredb4o, The Basics
With this post I start a little series about db4o, an object database. Why? Because I think object databases are a quite unknown technology. Normally when developers talk about databases…
Read moredb4o object database
I’ve looked for a small embedded, easy to use data store for implementing my small software-engineering course project. Of course I’ve looked at MS SQL Server, which works great together…
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