Martín Mauri wrote:
Hi all,
I'm having an issue while implementing an App Listener for my App.
Thing is that the ApplicationListener appears to be working fine, as from the
logs I can see that the contextInitialized method is being invoked.
Inside the method I do this call, same way as the Mailreader sample app does:
context.setAttribute(DATABASE_KEY, database);
The problem comes when from my action:
public class MyAction extends ActionSupport implements ApplicationAware {
public DBConnector getDatabase() {
Map application = getApplication();
Object db = application.get(DATABASE_KEY);
....
}
db is returning null, like if the object got lost somewhere...
here's the fragmen of my web.xml:
<listener>
<listener-class>
myApp.ApplicationListener
</listener-class>
</listener>
Any ideas?
1) there's something wrong in your implementation of ApplicationAware
and/or your getApplication() method
2) the 'database' variable was null when you called setAttribute() in
your listener
3) you have code somewhere which is overwriting the application-scope
property with a null value after the listener initializes it
4) the value of DATABASE_KEY is different in the listener and the action
Those are the most obvious places to start. In fact, I can't think of
anything else it could be unless there's something very funky going on,
in which case I doubt it can be diagnosed through a mailing list...
L.
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