PrimeFaces Ajax Listener not executed when process attribute is specified for a different component
jsf-2, primefaces
Solution
It should work fine at first sight. At least, it works fine that way when using standard JSF components. I'd bet it to be a bug or "feature" of PrimeFaces that it doesn't process the action when the action component is not included in the `process`. Adding `@this` to `process` should solve it. Consider posting an issue report to PrimeFaces guys.
Further, I'd rather use `event="valueChange"` or `event="click"` instead of `event="change"` or just remove the `event` altogether, it defaults to the right value already (`valueChange` which will render `onclick` in checkbox and radio button components). The `change` event works differently in MSIE for checkboxes and radiobuttons. It's only triggered on 2nd click and forth. You don't want to be browser dependent.
As per your comment:
The problem with the standard JSF checkbox and ajax components, is that the listener is invoked during Process Validations phase, but I need to update the model first!
This is not true. Probably you was using `valueChangeListener` instead of `<f:ajax listener>` or confusing the one with the other. The `<f:ajax listener>` is always invoked during invoke action phase.
Problem
When I specify `process` attribute of `p:ajax` tag, the listener is not executed. If I omit the `process` attribute, then the listener is called as expected. Here is the view snippet: ``` <p:messages id="messages" /> <h:inputText id="inputToProcess" value="#{controller.inputToProcess}" /> <p:selectBooleanCheckbox id="testCheckbox" > <p:ajax event="change" process="inputToProcess" update="messages @this inputToUpdate" listener="#{controller.processChecked}" /> </p:selectBooleanCheckbox> <h:inputText id="inputToUpdate" value="#{controller.inputToUpdate}" /> ``` And Controller: ``` @javax.faces.bean.ManagedBean @javax.faces.bean.ViewScoped public class Controller implements Serializable { private String inputToProcess; private String inputToUpdate; //getters and setters public void processChecked(javax.faces.AjaxBehaviorEvent e) { // doing some stuff here } } ``` I attached a `phaseListener` to a view with `ANY_PHASE` PhaseId, and here is what I observed. When I specify `process` attribute , the value of the inputToProcess input is successfully set to the controller during the Update Model phase (no exception occurs). Then the `Invoke Application` and `Render Response` phases are executed, but no listener is called. One thing I noticed is that checkbox is not set in the end. But, there are no conversion or validation errors, because as I said the `Update Model` and `Invoke Application` phases are executed. If I omit `process` attribute, here is what I see: the listener is normally called during the `Invoke Application` phase (since `immediate` is false by default), and then `Render Response is executed. Checkbox is successfully set. Is there any explanation for this sort of behavior?