How to notify backing bean that JSF has completed rendering? -

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i have boolean semaphore in managed bean denotes whether jsf page utilizes has completed rendering. default, value should false , once last bit of html has been rendered (or thereabouts), value should set true , never again, during lifecycle of bean, should go false.

i suppose 1 way if have form have hidden input tied bean method sets value of semaphore true. however, there way accomplish without form?

on per-view basis, use <f:view afterphase> that.

<f:view afterphase="#{bean.afterphase}"> 
private boolean renderedonce;  public void afterphase(phaseevent event) {     if (event.getphaseid() == phaseid.render_response) {         renderedonce = true;     } }

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