The Time Bean Example

UNDER CONSTRUCTION

This is an example of a JSP-page calling a Session Bean. The result looks like this:

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First you have some stuff that I don't know what good they are, for example the display-name tag. You can write what ever there I guess. It seams totaly unnessesary to me, but I have not tested what happens if I take it away. What does matter is the tags ejb-name, local-home, local, ejb-class, session-type. I think that the ejb-name is part of what clients use to locate the bean (see the next xml-file). The local-home, local and ejb-class tags points out the classes. Session type tells if it is a statefull or stateless session bean. Transaction type doen't make sence I think, there is no transactions in a session bean, is there? I have tryed to read more about this deployment descriptors here: http://cwiki.apache.org/GMOxDOC11/deployment-plans.html^{Image Removed} But I have not bean able to figure it out. On the other hand, I don't think ejb-jar.xml files are needed in the next generation EJB 3.0 so perhaps one should not spend to much time trying to understand it.
Here comes the openejb-jar.xml file:

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This file is pretty empty. The only thing of importance is the artifactId, it shows if you look a the lists of modules at http://localhost:8080/console/portal/apps/apps_ear^{Image Removed} like this: default/MyPhonebook_ArtifactId/1.0/car
(Anybody knows what "car" stands for?)
Allright, this is how I have organised my files :

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Now we can look at the application at http://localhost:8080/mytime^{Image Removed}

The whole source code can be downloaded in this zip-file: mytime.zip

Next: the CMP EJB phonebook example.

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By Mattias Malmgren mattias@freefarm.se
2006-09-28