migrate actionListener of actionParam to 4.1?

[mhn]

How can I migrate the actionListener of a nested actionparam from richfaces 3.3.3 to richfaces 4.1?

The a4j:param tag does not have an actionListener attribute anymore.

The actionListener is also not called if I move the actionListener to the outer commandbutton.

3.3.3 code:

<a4j:commandButton render="#{MyController.rerenderIds}"

                   oncomplete="#{MyController.oncompleteIds">

<t:inputHidden id="hello" forceId="true" value="#{requestScope['hello']}"/>

<a4j:actionparam name="foo"

                 assignTo="#{requestScope['foo']}"

                 value="#{MyController.someValue}"

                 actionListener="#{MyController.doIt}"/>

</a4j:commandButton>

Do I have to use a4j:actionListener and provide a separate class for each actionListener?

Or should I try to use EL2 in order to pass parameters directly into the actionListener?

[pvito]

Hi, Michael

Try this solution:

<h:form>

  <t:inputHidden id="hello" forceId="true" value="#{requestScope['hello']}"/>

  <a4j:commandButton render="#{MyController.rerenderIds}"

             actionListener="#{MyController.doIt}"

             oncomplete="#{MyController.oncompleteIds}">

     <a4j:param  name="foo"

                 assignTo="#{requestScope['foo']}"

                 value="#{MyController.someValue}"/>

  </a4j:commandButton>

</h:form>

[mhn]

Hi Vitaliy,

this does not work in my case because a4j:param ist executed after the actionListener of the commandButton.

I found a workaround with a simple f:param tag:

<f:param id="foo" name="foo" value="#{MyController.someValue}"/>

foo is set as a request parameter(!) before the actionListener is exeucted and therefore available in the actionListener.

But with f:param I cannot bind values of my backing beans directly. The values are accessible only as request parameters.

Any other idea with Richfaces tags?

<f:param id="aChangeProfileTextFieldPa" name="proDocumentId2" value="#{ProxyModeController.activeWorkbenchController.previewDocument.escapedDocumentId}"/>

[feuyeux]

<a4j:actionparam name="foo"  assignTo="#{requestScope['foo']}"   value="#{MyController.someValue}"  actionListener="#{MyController.doIt}"/>

->

<a4j:param name="foo"  assignTo="#{requestScope['foo']}"   value="#{MyController.someValue}"  listener="#{MyController.doIt}"/>

Or, you can use jsFunction. More reading: http://community.jboss.org/wiki/UseA4jjsFunctionToProxyTheJavascript