Get aplication module from an event

Question

Hi.
I need get the aplication module from an event:
public static EventResult handleLovValidateEvent(
BajaContext context,
Page page,
PageEvent event)
System.out.println("[LovEvents]Lov Validate Event");
ConsultasAppMod am= (ConsultasAppMod)ServletBindingUtils.getApplicationModule(context);
ViewObject vo = am.findViewObject("EntidadesExternasView");
String searchText = event.getParameter("searchText");
EventResult result = new EventResult();
result.setProperty("showWindow", Boolean.TRUE);
result.setProperty("fieldText", "xpto");
return result;
but the variable "am" have null value, so when i try findViewObject i have a error :
Unhandled Exception thrown: class javax.servlet.ServletException.
What's wrong ??
Eliseu Cartaxo

Answer 1

Eliseu,
For this to work, in your UIX XML file, in the event handler, you need to surround the call to your <method> handler with a findRootAppModule tag. Note also that you can put a findViewObject inside there in the handler in XML so that you can then use ServletBindingUtils.getViewObject directly instead of getting the AM first.
An example, from the UIX Developer's Guide, is:
<handlers>
<event name="goto" >
   <bc4j:findRootAppModule name="root" >
     <bc4j:findViewObject name="alpha" >
       <bc4j:goto/>
     </bc4j:findViewObject>
   </bc4j:findRootAppModule>
</event>
</handlers>For more information, see the UIX Developer's Guide in the JDeveloper help system or at http://helponline.oracle.com/uix/help/. (Click developer's guide, Integration with External Technologies, 16. Business Components for Java Integration.)
If you continue having problems with this issue, please include the <handlers> section of your .uix file.
-brian
UIX Team