The opening of the day was presented by the Oracle company. They shared their vision about Java with all the JavaOne visitors. Oracle sees SOA, WEB 2.0 and grid computing as the main upcoming Java issues. And of course, Oracle has an IDE which supports all these items. They showed this by giving a smooth JDeveloper demo.

For me, grid computing was quite surprising. But it seems that Oracle has bought BEA systems. (I missed that one ) BEA systems has nice tools for dynamic grid computing. And even an own JVM (JRocket) . The presentation showed the results of adaptive processor and memory capacity adding after an increased load on the running system. Looked very nice.

Todays presentations:

Ten ways to destroy your community

Josh Berkus is a professional communication guy and advises companies how to ‘open source’ their software. The presentation was about what NOT to do when you try to build an open source community. There are ten golden rules:

1. Use difficult tools.
2. Poisonous people
3. Make/publish no documentation at all
4. Make decisions in closed meetings
5. Legalese, legalese, legalese
6. Bad liaison
7. Governance obfuscation
8. Screw around with licenses
9. No outside commitments
10. And be silent

Very cool and clear presentation. I think you can google Josh Berkus to get more info.

Open source SOA with service component architecture and Apache Tuscany

Very technical presentation about the Apachy SCA specification implementation. A long demo was given by two hard to understand guys. They showed how to build components, define services on it, wire up the services, how to define bindings and how to deploy the services. Interesting but hard to understand (At least for me ). But I think it’s worth to have a closer look at it.

Ajax and JavaServer Faces Technology: Natural Synergy

Kito Mann explained JSF and the ways of combining JSF with Ajax. There are three ways of using Ajax within JSF.

1. Sprinkling - Adding Ajax to normal JSF components
2. AJAX inside - JSF component have their own javascript and service layers
3. AJAX outside - use for example JMaki

If you want to use a little Ajax on JSF, the best thing to do is using MyFaces Tomahawk of Apache. (according to Kito) Late 2008 the 2.0 version of JSF will be ready. (with Ajax support)

Nasa World Wind, 3D earth in your application and web pages

A very cool and funny presentation by Tom Gaskins. He and his team build an easy to use component (like a JButton) which can be used in applications and applets to show a 2 1/2 or 3D globe with detailed information. A demo showed how really easy it is to use and extend World Wind with extra layers. Eight lines of code does the trick. Go take a look at: http://worldwind.arc.nasa.gov/

That’s all for today.

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