Urgent: unable to call a plsql stored procedure with a struts data action

Question

Hello ALL,
I'm trying to call a plsql stored procedure within a struts DataAction,
The scenario is:
When a user a click on a button, then it should call a specific stored procedure,,
I create struts data action a class to handle the event which is to call the procedure
Here is my code:
public class RequestAction extends DataForwardAction
public void onCall(DataActionContext ctx)
String amDef = "model.AppModule";
String config = "AppModuleLocal";
ApplicationModule am =
Configuration.createRootApplicationModule(amDef, config);
try{
AppModuleImpl myAm = (AppModuleImpl)am;
DBTransaction tr = (DBTransaction) myAm.getTransaction();
CallableStatement stmt = tr.createCallableStatement
("begin pkg_test.test; end;", DBTransaction.DEFAULT);
stmt.execute();
stmt.close();
tr.commit();
catch(Exception e){System.out.println(e.getMessage());}
Configuration.releaseRootApplicationModule(am,true);
but when I ran the application and click on the button, I got the following Exception:
04/07/08 00:45:50 ORA-06550: line 1, column 7:
PLS-00201: identifier 'PKG_TEST.TEST' must be declared
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
It seems that the DBTransaction object unable to see the stored procedure,
Am I do something wrong or miss something???
I've checked the examples on the OTN HOW TO, and searched in the JDeveloper Forum but unable to find an answer,
Please anyone can help???
Thanks a lot
With Regards,
Hayat

Answer 1

Here's an example application that illustrates how to do this. I haven't had a chance to writeup a little paper to go with it yet, but will as soon as I have a chance.
http://otn.oracle.com/products/jdev/tips/muench/storedproc/CallStoredProc.zip
See the "callStoredProcedure" method in the application module in the Model project.
See the "callStoredProcedure" method binding in the binding container of the "CallStoredProcedure" data page.
Notice the name "event_callStoredProcedure" of the (Call Stored Procedure) button on the CallStoredProcedure.jsp page which triggers the declaratively invocation of the method.
You could also call the method from code in a custom data action.
The code example illustrates how to create your own JDBC prepared statement for invoking the stored procedure, and doing it in a way that is efficient by keeping the prepared statement around across invocations.