using classes from other modules in web.xml

[Mark Wa]

Hi, We've got an ear and some wars all set up, currently on of the wars contains "common" classes used by other modules. I would like to use one of these classes in the web.xml of the other modules, but my server will not publish when i try this.

The reason for this is that I would like to set up a SessionListener to monitor the number of active sessions. As I understand a single sessionListener would suffice for all modules?

[Jeanne Boyarsky]

Mark,
You can move the common classes to a separate project/jar and have each war refer to that. It's called a jar dependency and a common technique.

[Nick White Ro]

Another option, if you have multiple applications in the same container that use the same classes, you can package them in a JAR and put the JAR in the container's library folder.

[Hebert Coelho]

Take a little study about SOA. Is a pattern to share apps communications, so you may have access to some class implementation without the need of code replication.