How to connect JScript, Logic and/or BackingBeans?

Question

I still have difficulties to bring backing beans, logic and jscript together. What I figured out is, that we have actionListener or listener on the one hand (this enables us to start a method or an event in the dialog's logic or a backing bean), and on the other hand we have jscript events like onclick, oncomplete or onTabShow.

So here is my first question: Are these assumptions correct?

And here is my second question: When I want an event, method or a backing bean in the logic to be executed when a javascript-event is fired how can I do that?

Accepted Answer

You can add a <p:ajax> call on your element. With this you have a possibility to listen some events from the "parent" element.

In Primfaces are no onclick, onblur event to fire a logic or backingbean. These are HTML attribute names to call normal javascript functions.

But with primfaces they just called blur, click. You find an example in the user guide from primefaces (Ajax Behavior Events).

For example the selectOneMenu:

<p:selectOneMenu var="lang" value="#{data.language}">
    <f:selectItem itemValue="de" itemLabel="de"/>                    
    <f:selectItem itemValue="fr" itemLabel="fr"/>
    <p:ajax event="change" listener="#{logic.changeLanguage}"/>
</p:selectOneMenu>

I hope this will help you

How to connect JScript, Logic and/or BackingBeans?

Follow this question

Related questions