RE: Facelets Back Button

[Vinaya Tirikkovalluru <vi...@converge.com>]

Hi,

This worked for me with facelets.
I have another application with out Facelets.
I have the following code on the jsp.

<%
	response.setHeader("pragma", "no-cache");
	response.setHeader("Cache-control",
			"no-cache, no-store, must-revalidate");
	response.setHeader("Expires", "01 Apr 1995 01:10:10 GMT");
%>

This works for some jsps and is not working for otheres

Any ideas??

Thanks
Vinaya

-----Original Message-----
From: Christian Poecher [mailto:christian.poecher@mailinator.com] 
Sent: Thursday, November 20, 2008 11:07 AM
To: users@myfaces.apache.org
Subject: Re: Facelets Back Button




Vinaya Tirikkovalluru wrote:
> 
> Hi,
> 
>  
> 
> I recently switched over to facelets.
> 
> Now all my jsps are xhtmls
> 
> How do I expire the page if the user clicks on browser back button?
> 
>  
> 
> Any ideas?
> 

Hi Vinaya,

I just did it via a Phase Listener. This would work on all JSF
implementations. The problem is though that due to a bug Firefox 3.0.x
ignore the cache settings. I saw that they consider it a major bug and
they
also have a patch read with the last modified date of yesterday. 

Here is the code:

import javax.faces.context.FacesContext;
import javax.faces.event.PhaseEvent;
import javax.faces.event.PhaseId;
import javax.faces.event.PhaseListener;
import javax.servlet.http.HttpServletResponse;

import org.apache.log4j.Logger;

public class NoBrowserCachePhaseListener implements PhaseListener {
	
	public void afterPhase(PhaseEvent event) {
		// Do nothing special
	}

	public void beforePhase(PhaseEvent event) {
		FacesContext facesContext = event.getFacesContext();
		HttpServletResponse response = (HttpServletResponse)
facesContext.getExternalContext().getResponse();
		response.addHeader("Pragma", "no-cache");
		response.addHeader("Cache-Control", "no-cache");
		response.addHeader("Cache-Control", "no-store");
		response.addHeader("Cache-Control", "must-revalidate");
		response.addHeader("Expires", "0"); 
	}

	public PhaseId getPhaseId() {
		return PhaseId.RENDER_RESPONSE;
	}
}

You need to add this to your faces-config.xml:

 <lifecycle>
   <phase-listener>NoBrowserCachePhaseListener</phase-listener>
 </lifecycle>

HTH,
Chris
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Facelets is slow???

[Vinaya Tirikkovalluru <vi...@converge.com>]

Hi,

I just switched over to facelets.
I see the pages load really slow.
I used templates. I see that the Menu is loading way faster than the
other part of the page.

I have JSF+ SPRING + JBOSS + TOMOHAWK

Any ideas?
Thanks




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RE: Facelets Back Button

[Christian Poecher <ch...@mailinator.com>]

Vinaya Tirikkovalluru wrote:
> 
> <%
> 	response.setHeader("pragma", "no-cache");
> 	response.setHeader("Cache-control",
> 			"no-cache, no-store, must-revalidate");
> 	response.setHeader("Expires", "01 Apr 1995 01:10:10 GMT");
> %>
> 
> This works for some jsps and is not working for otheres
> 
> Any ideas??
> 
> 

Hi Vinaya,

I don't know why you are having these problems, but I would suggest you look
into the HTTP Headers of the problematic requests. You could use TCPMon or
FireBug.

HTH,
Chris
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