How to programmatically add af:setPropertyListener to CommandImageLink

Question

Hi All,
My Requirement: programmatically add af:setPropertyListener to CommandButton
I referred this post how to programmatically add af:setPropertyListener to CommandButton and followed the following code.
Code:
// create a value expression
ValueExpression vx =
elFactory.createValueExpression(elContext, "#{pageFlowScope.clockNo}",
String.class);
// set a default value if desired
vx.setValue(elContext, clockNo);
SetPropertyListener spl =
new SetPropertyListener(ActionEvent.class.getName());
spl.setFrom(clockNo);
spl.setValueExpression("to", vx);
// add the listener to the button
newOpButton.addActionListener(spl);
My Code:
<af:commandImageLink id="editInsuraceDetLink"
icon="/resources/images/Edit.jpg"
iconPosition="trailing"
rendered="#{not row.deleted}"
action="addEndorsement"
useWindow="true"
inlineStyle="vertical-align:bottom;"
partialSubmit="true"
shortDesc="Edit"
*actionListener="#{pageFlowScope.GetEndorsementTypeListener.execute}"*
returnListener="#{GetEndorsementDetailsListener.execute}"
windowEmbedStyle="window"
windowModalityType="applicationModal"
windowHeight="650" windowWidth="740">
</af:commandImageLink>
Action Listener - .GetEndorsementTypeListener.execute code:
RichCommandImageLink a_button = (RichCommandImageLink) a_component.findComponent("editInsuraceDetLink");
FacesContext fctx = FacesContext.getCurrentInstance();
Application application = fctx.getApplication();
ELContext elContext = fctx.getELContext();
ExpressionFactory elFactory = application.getExpressionFactory();
ValueExpression vx = elFactory.createValueExpression(elContext, "#{pageFlowScope.controlFlowName}", String.class);
// set a default value if desired
//vx.setValue(elContext, clockNo);
SetPropertyListener spl = new SetPropertyListener(ActionEvent.class.getName());
spl.setFrom(a_target.getEndorsementFor().toString());
spl.setValueExpression("to", vx);
System.out.println("From= "+spl.getFrom());
System.out.println("To= "+spl.getValueExpression("to"));
// add the listener to the button
a_button.addActionListener(spl);
I got the following output.
From= Nominee / Appointee
To= ValueExpression[#{pageFlowScope.controlFlowName}]
Now my Problem is: the pageFlowScope variable ControlFlowName is not set.
And also I got a *link*: https://blogs.oracle.com/vijaymohan/entry/usage_of_setpropertylistener_and_setactionlistener
Whats wrong with my code. Is my problem related with above *link*.
Please suggest me how to add SetPropertyListener programmatically.
-Thanks
Mohanraj

Answer 1

Frank,
This works:
        // create a value expression
        ValueExpression vx =
            elFactory.createValueExpression(elContext, "#{pageFlowScope.clockNo}",
                                            String.class);
        // set a default value if desired
        vx.setValue(elContext, clockNo);
        SetPropertyListener spl =
            new SetPropertyListener(ActionEvent.class.getName());
        spl.setFrom(clockNo);
        spl.setValueExpression("to", vx);
        // add the listener to the button
        newOpButton.addActionListener(spl);But, I am thinking you would have known about it before I posted it. I don't really know how it works, but it does.
Can you help me reconcile between this, and what you said. Because what you said makes sense too.