Renderer difference

Question

Hi
I have spent a couple of hours to make a result pagination in jsf.
<h:commandLink actionListener="#{goodbyeBean.prev}" >
<h:outputText value="prev" rendered="#{goodbyeBean.pageNo > -3}"/>
<f:param value="#{goodbyeBean.pageNo - 1}" name="pageNo"/>
</h:commandLink>
<h:commandLink actionListener="#{goodbyeBean.next}">
<h:outputText value="next" rendered="#{goodbyeBean.pageNo < 0}"/>
<f:param value="#{goodbyeBean.pageNo + 1}" name="pageNo"/>
</h:commandLink>
goodbyeBean is a request bean. On the first page i hide next link and then when pageNo = -3 i hide prev link.
I have spent so much time and finally found solution for hiding links- which i present above. In a first turn, i had render attribute set to commandLink tag, i.e.
<h:commandLink actionListener="#{goodbyeBean.next}" rendered="#{goodbyeBean.pageNo < 0}">
<h:outputText value="next"/>
And i had a real problems with next link. On the first page i had a chance to click on prev - which is ok. When the page was redispalyed next link appeared, but if i clicked it , goodbyeBean.next function wasn't fired.
Update Model phase was reached cause i saw a new value in pageNo http request parameter but that's all.
If i clicked prev link twice and then click next everything seems to be ok and goodbyeBean.next is fired. But this time i should also be able to click on next again (i had clicked prev twice before) but goodbyeBean.next isn't fired again after the second next click.
I found solution in one of the example but can anyone explain me this weird behaviour ??

Answer 1

Hi
Switching to action doesn't change anything. No changes.
As i wrote before i have a solution to my problema but i would like to know what it means to add renderer attribute to h:commandLink.
And what happens if this link finally appears.
That makes sense because on page load
the phases encountered are Restore View and then it
jumps to Render Response.I do not get it. If i click on prev link i have my action fired. The result of this action is redisplayed page but this time i show next button. If i click on next ,lifecycle of JSF should start again. And if i bind link or button to some bean's method this method should be fired.
So i do not get that on page load the phases encountered are Restore View and then it jumps to Render Response. I think this scenario happens if i i type URL to browsers address bar. But in my situation the page was redispalyed because i clicked command link (what is equals to clicking on submitt button).