a4j:poll server date clock not updating

[bp2s]

Hi - easy one I hope:

Cut and pasted code from the web nice and easy - all I'm after is a clock from the server output on the header of my web app. The bean loads fine no errors (built in eclipse/ant/tomcat all the latest by the date of this post), and outputs the date in the header, but it's not updating. I've been on at it for a day (waste?) and it's still not working. Any help enormously appreciated.

i don't think it's cos i'm referencing taglibs on the web and i'm behind a proxy as it'd either error or prompt me and i'm getting silence.
m

index.jsp:

<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f"%>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h"%>
<!-- RichFaces tag library declaration -->
<%@ taglib uri="http://richfaces.org/a4j" prefix="a4j"%>
<%@ taglib uri="http://richfaces.org/rich" prefix="rich"%>


<snip>

 <rich:toolBarGroup>
 <a4j:region>
 <h:form>
 <a4j:poll id="poll" interval="1000" enabled="true" reRender="serverDate" />
 </h:form>
 </a4j:region>

 <h:form>
 <h:panelGrid columns="1" width="100%" id="title">
 <span id="titleText">MY TITLE  </span>
 <h:outputText id="serverDate" value="#{Welcome.dateTime}" />
 </h:panelGrid>
 </h:form>
 </rich:toolBarGroup>

and my Welcome.java code:

package myPkg;

import java.util.*;
import java.text.DateFormatSymbols;
import javax.faces.model.SelectItem;

public class Welcome {
 private String name="";
 private String dateTime="";
 private List nodes;

 public String getDateTime() {
 Calendar cal = new GregorianCalendar();
 String[] monthName = { "January", "February", "March", "April", "May", "June", "July",
 "August", "September", "October", "November", "December" };
 String[] weekdays = new DateFormatSymbols().getWeekdays();

 int year = cal.get(Calendar.YEAR);
 String date = String.format("%02d", cal.get(Calendar.DAY_OF_MONTH));
 String hr = String.format("%02d", cal.get(Calendar.HOUR_OF_DAY));
 String min = String.format("%02d", cal.get(Calendar.MINUTE));
 String sec = String.format("%02d", cal.get(Calendar.SECOND));


 dateTime = weekdays[cal.get(Calendar.DAY_OF_WEEK)] + " " + monthName[cal.get(Calendar.MONTH)] + " " + date + " " + year + " " + hr + ":" + min + ":" + sec;
 return dateTime;
 }
}

[thomasgo]

The richfaces doc. contains this line:

<a4j:poll id="poll" interval="1000" enabled="#{userBean.pollEnabled}" reRender="poll,grid"/>

and reading the text I assume you need to rerender poll, too.

[bp2s]

Thanks for getting back to my ThomasGo.

Yes, the text I posted was after many many tries with different permutations. With this:

<rich:toolBarGroup>
 <a4j:region>
 <h:form>
 <a4j:poll id="poll" interval="1000" enabled="true" reRender="poll,grid" />
 </h:form>
 </a4j:region>

 <h:form>
 <h:panelGrid columns="1" width="100%" id="grid">
 <span id="titleText">PRISM CONFIGURATOR  </span>
 <h:outputText id="datum" value="#{Welcome.dateTime}" />
 </h:panelGrid>
 </h:form>
</rich:toolBarGroup>

it's still not working.

Incidentally,

[bp2s]

Please ignore string 'Incidentally,' in the last post.

[ilya_shaikovsky]

any exceptions in server log? also check a4j:log for any client side errors.

[ilya_shaikovsky]

and b.t.w. poll rerendering at demosite used only because it's becames disabled after a minute of working by design.

[bp2s]

I get the log out through Eclipse and there is nothing written to it relevant to this problem/ajax.

Cheers for looking at this.

[bp2s]

re your btw - i'd taken the commandButton code out as i wanted the clock to continue all the time.

[bp2s]

I've scoured the net again and tried a few more things but I still cannot get the clock to update. Further, as I now have a SelectOneMenu which causes an ajaxian update of further information, I need to fix this if poss.

I've installed phaseTracker and a4j:log.

phaseTracker is not showing repeated requests to the server. The a4j:log output when the page loads is:

debug[17:54:19,409]: Query preparation for form 'j_id_jsp_920730595_3:j_id_jsp_920730595_9' requested

Just as though no ajax request is being made to the server at periods. I'm quite confused now.

Where should I be looking to check what might be going on? Any help massively appreciated.

M

[nbelaevski]

Hi,

I guess some of surrounding elements can be the reason - please try to leave only

<a4j:region>
 <h:form>
 <a4j:poll id="poll" interval="1000" enabled="true" reRender="serverDate" />
 </h:form>
 </a4j:region>

 <h:form>
 <h:panelGrid columns="1" width="100%" id="title">
 <span id="titleText">MY TITLE  </span>
 <h:outputText id="serverDate" value="#{Welcome.dateTime}" />
 </h:panelGrid>
 </h:form>

and check.

[bp2s]

nbelaevski - fixed, many thanks.

As I was building the page, I brought in a rich:toolbar and it broke it at that point.

I've separated the a4j:region and the h:form so the form is in the rich:toolbar but the a4j is not. functionality now works but also the object renders on the correct part of the page - in the header, where the clock should be:

<a4j:region>
 <h:form>
 <a4j:poll id="poll" interval="1000" enabled="true"
 reRender="poll,grid" />
 </h:form>
</a4j:region>

<f:facet name="header">
 <h:form>
 <rich:toolBar height="55" itemSeparator="line">
 <rich:toolBarGroup>
 <h:graphicImage id="Logo" value="/img/LBYK.gif"
 alt="Logo" />   
 </rich:toolBarGroup>

 <rich:toolBarGroup>
 <h:form>
 <h:panelGrid columns="1" width="100%" id="grid">
 <span id="titleText">CONFIG  </span>
 <h:outputText id="datum" value="#{Welcome.dateTime}" />
 </h:panelGrid>
 </h:form>
 </rich:toolBarGroup>

I didn't see that I needed to make this kind of separation in the documentation...
m