Project Management System using JavaFX and db4o

When I run into Sun's JavaFX sample applications section I saw one example that particularly caught my attention, a sort of simplified project management system. What I found interesting is that it looks like this native GUI could also be used under JavaFX's mobile profile and, most importantly, that the authors created a mock data access layer (accessing only in-memory collections) leaving room for easily plugging in my favorite (JavaFX compatible) object persistence engine: db4o =)

With the help of Dama (my wife) we changed the original data handler to include db4o and wanted to share this sample with you. We used db4o v7.9 which is accessed straight from JavaFX (if you want to learn more about the limitations of db4o under JavaFX I suggest you read Patrick's blog post 'db4o with JavaFX').

If you want to use db4o in your JavaFX application you're adviced to reuse Db4oFX.fx (available in the download bundle below) to save yourself some time (it's a sort of JavaFX API to db4o) which in turn uses Reflex.java (for some reflection magic). The data handler for this application (which benefits from these utility classes) is called DataHandler.fx.

Thanks to Praveen Mohan & Elancheran for sharing the original sample.

Download Sample

Twitter "Unscheduled Maintenance"

I just run into a second nasty experience with Twitter. It wasn't that they are over capacity, they now call it "unscheduled maintenance". Thank god, I thought they were over capacity =S



I prefer the whale (or maybe a functional Twitter website?)

Twitter over capacity?

I just had a nasty surprise when trying to update my status on Twitter:



Strange (there's a reason why they are using Amazon S3 and that is scalability).

So, how come? (And what's with the whale anyway? =)

Demos de db4o en Android actualizadas!

Pueden acceder ahora a versiones actualizadas de los demos para Android: PasswordSafe y MapMe que ahora corren sobre la nueva version de db4o (v7.4) y el ultimo SDK de Android (v1.1 R1).

PasswordSafe es una aplicación muy sencilla para almacenar en un lugar seguro los datos de login de tus sitios favoritos. MapMe es un frontend para Google Maps que te permite almacenar puntos del mapa para luego accederlos.

Para descargarte las demos visita esta página.

Enjoy!!

Getting Started with db4o

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In this video db4o expert Eric Falsken introduces us to db4o using Visual Studio, C# and the free Object Manager Enterprise (OME) tool to browse and query the database in the example. For more information point your browser to: http://developer.db4o.com

db4o Paircast: Full db4o Build From svn Sources

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In this session Patrick and Tetyana use db4obuild project from svn repository to create full db4o distribution (Java and .NET versions). They show how to access the repository, checkout the latest source, setup and run the build and check the results. The detailed instructions on the process are also available in db4o Reference documentation.

Register in our community and get access to db4o related special resources, whitepapers, demo applications and forums: http://developer.db4o.com

db4o Paircast: Performance Contest

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In this session Carl and Norberto demonstrate how to get started with the 1st db4o performance contest.

Register in our community and get access to db4o related special resources, whitepapers, demo applications and forums: http://developer.db4o.com