Unable assign a BPM Object field value to a JSP Variable using "invoke"

Question

Hi,
I'm unable to retrieve a value returned by a BPM Object Method and use it in JSP. Here is what I'm trying to achieve:
BPM object named : "myObject" has a method "getRequiredValue" which returns a "String". I want to assign the value returned by "getRequiredValue" to a JSP Variable "myVariable" using invoke method as below:
<% String myVariable = ""; %>
<f:invoke var="${myObject}" methodName="getRequiredValue" retAttName="myVariable"/>
<% out.println ("myVariable: " + myVariable); %>
When I execute the above code I don't get the value being returned by "getRequiredValue" into "myVariable".
Any help would be highly appreciated!
regards,
MK

Answer 1

1. Make sure you mark the "Server Side Method" property of the getRequiredValue method to "Yes".
2. I guess you dont need to specify "<% String myVariable = ""; %>". Try removing it.
3. Replace "<% out.println ("myVariable: " + myVariable); %>" by <c:out value="${myVariable}"/> just in case!
4. Lastly, I hope "myObject" is the name of the instance variable in your screenflow, and not the BPM object name.
Hope this helps
-Hemant