Update preRenderView component with ajax

Question

Is there a way to update the preRenderView components with ajax?

Some example:

<html>
    <f:event type="preRenderView" listener="#{bean1.load}" />
    <f:event type="preRenderView" listener="#{bean2.load}" />

    <body>  
        <div jsf:rendered="#{bean1.enabled}" >
            // some code here
        </div>

        </div jsf:rendered="#{bean2.enabled}" >
            // some code here
        </div>
    </body>
</html>

In this example, i want the preRenderView of case 1 only be fired if bean1 is enabled. Adding a check in java code is not a good idea, because the session will be invoked everytime and i have a way more complex thing than the simple sample above.

Can i wrap the f:events in any component? Add a rendered attribute to the component and update them with an ajax call?

As far as i know, it's not allowed to add any other components as head or body as children of the html tag. Is it allowed to pack the preRenderView inside the body element and wrap it with a simple jsf:div?

Vsevolod Golovanov Vsevolod Golovanov · Accepted Answer · 2017-11-25T12:56:24

Use the preRenderComponent event instead and put those f:events inside the divs.

I'm not sure if it will play nicely with this kind of JSF binding though. You may have to replace those divs with h:panelGroup layout="block" (which renders simple divs as well).

Update preRenderView component with ajax

1 Answers