11 Replies Latest reply on Aug 30, 2007 9:19 AM by vjger

Dynamic <rich:tab>

vjger Aug 9, 2007 9:18 AM

Hi.
I would create a dynamic tabbed menu where the "id" e "label" parameter are "build" iterating over a collection.
How can I obtain it?

In fact, if I use the <c:foreach> JSTL tag, the var attribute isn't "seen".
If I use <h:datatable> (or <rich:datatable>) I obtain a

java.lang.IllegalStateException: No active tabs!
 org.richfaces.renderkit.TabPanelRendererBase.encodeTabs(TabPanelRendererBase.java:225)

This is my example.


<?xml version="1.0" encoding="ISO-8859-1" ?>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
 pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %>
<%@ taglib uri="http://richfaces.ajax4jsf.org/rich" prefix="rich" %>

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
<title>Insert title here</title>

<%
 java.util.List list = new java.util.ArrayList();
 list.add("foo1");
 list.add("foo2");
 request.setAttribute("list",list);
 %>

</head>
<body>
 <f:view>
 <rich:tabPanel switchType="server" >
 <rich:dataTable value="#{list}" var="obj">
 <rich:column>
 <rich:tab label="#{obj}" >
 </rich:tab>
 </rich:column>
 </rich:dataTable>
 </rich:tabPanel>
 </f:view>
</body>
</html>

Thanks in advance

1. Re: Dynamic <rich:tab>

ilya_shaikovsky Aug 9, 2007 9:27 AM (in response to vjger)

please post your example with c:forEach. I've used c:forEach for your case without a problems some time ago and it should works.
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2. Re: Dynamic <rich:tab>

vjger Aug 9, 2007 9:50 AM (in response to vjger)

<body>

 <f:view>

 <rich:tabPanel switchType="server" >
 <c:forEach items="${lista}" var="obj">
 <% request.setAttribute("obj",pageContext.getAttribute("obj")); %>
 <rich:tab label="#{requestScope.obj}">

 <h:outputText value="#{requestScope.obj}"/>

 </rich:tab>
 </c:forEach>
 </rich:tabPanel>

 </f:view>



</body>

It prints on ALL label tabs always the last value of the collection (foo2 in the example).

3. Re: Dynamic <rich:tab>

vjger Aug 9, 2007 10:09 AM (in response to vjger)

"Vjger" wrote:

<body>

 <f:view>

 <rich:tabPanel switchType="server" >
 <c:forEach items="${lista}" var="obj">
 <% request.setAttribute("obj",pageContext.getAttribute("obj")); %>
 <rich:tab label="#{requestScope.obj}">

 <h:outputText value="#{requestScope.obj}"/>

 </rich:tab>
 </c:forEach>
 </rich:tabPanel>

 </f:view>



</body>

It prints on ALL label tabs always the last value of the collection (foo2 in the example).

This was in console:

14:05:24,025 ERROR [[Faces Servlet]] Servlet.service() for servlet Faces Servlet threw exception
org.ajax4jsf.framework.resource.ResourceNotFoundException: Resource not registered : org.richfaces.renderkit.images.TabGradientB
 at org.ajax4jsf.framework.resource.ResourceBuilderImpl.getResource(ResourceBuilderImpl.java:367)
 at org.ajax4jsf.framework.resource.ResourceBuilderImpl.getResourceForKey(ResourceBuilderImpl.java:322)
 at org.ajax4jsf.framework.resource.InternetResourceService.serviceResource(InternetResourceService.java:152)
 at org.ajax4jsf.framework.resource.InternetResourceService.serviceResource(InternetResourceService.java:141)
 at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:261)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
 at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
 at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
 at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
 at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580)
 at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
 at java.lang.Thread.run(Unknown Source)

4. Re: Dynamic <rich:tab>

ilya_shaikovsky Aug 9, 2007 10:15 AM (in response to vjger)

the exception - just solves via CTRL+F5
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5. Re: Dynamic <rich:tab>

vjger Aug 9, 2007 10:29 AM (in response to vjger)

"ilya_shaikovsky" wrote:
the exception - just solves via CTRL+F5

Sorry, I don't understand what you mean.
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6. Re: Dynamic <rich:tab>

fernando_jmt Aug 9, 2007 11:41 AM (in response to vjger)

He meant you should press CRTL+F5 in your browser in order to clear browser cache.

BTW, this issue is already solved in the upcoming version.
http://jira.jboss.com/jira/browse/RF-401
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7. Re: Dynamic <rich:tab>

vjger Aug 10, 2007 6:13 AM (in response to vjger)

Thanks to all.
Effectively CTRL+F5 solve the "exception problem" but it doesn't solve the "last element problem" i.e. when I use <c:foreach> the <rich:tab>'s label is always the last element of the collection as in the image

I repeat the code:

[img]http://wpop6.libero.it/ps4-2/ps/IFS/ImageFullSize?d=libero.it&u=mariner&t=d101d8937d475d112946&url=id%3A20&l=it&s=1186740287887[/img]

 <?xml version="1.0" encoding="ISO-8859-1" ?>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
 pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib uri="http://java.sun.com/jsf/html" prefix="h" %>
<%@ taglib uri="http://java.sun.com/jsf/core" prefix="f" %>
<%@ taglib uri="http://richfaces.ajax4jsf.org/rich" prefix="rich" %>

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1" />
<title>Insert title here</title>

<%
 java.util.List list = new java.util.ArrayList();
 list.add("foo1");
 list.add("foo2");
 list.add("foo3");
 request.setAttribute("list",list);

 %>

</head>
<body>

 <f:view>

 <rich:tabPanel switchType="server" >
 <c:forEach items="${list}" var="obj">

 <c:set var="obj" value="${pageScope.obj}" scope="request"/>
 <rich:tab label="#{requestScope.obj}">

 <h:outputText value="#{requestScope.obj}"/>

 </rich:tab>
 </c:forEach>
 </rich:tabPanel>

 </f:view>



</body>
</html>

8. Re: Dynamic <rich:tab>

ishabalov Aug 10, 2007 3:14 PM (in response to vjger)

That works as designed. All the labels point to same #{requestScope.obj} which contains the last label from loop.

Your case is definitely challenging. Normally we recommends use of facelets, instead of JSP. Not so many people uses JSP now. I guess you can try to change <rich:tab label="#{requestScope.obj}"> to <rich:tab label="${requestScope.obj}">.

You must understand the difference between JSF and JSP - in your case forEarch will be executed first, create component tree and than tree will be rendered. Any EL expressions with # will be executed on rendering, not during the loop.
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9. Re: Dynamic <rich:tab>

vjger Aug 30, 2007 5:05 AM (in response to vjger)
"ishabalov" wrote:
I guess you can try to change <rich:tab label="#{requestScope.obj}"> to <rich:tab label="${requestScope.obj}">.

I receive the following Exception:

org.apache.jasper.JasperException: /test.jsp(33,4) According to TLD or attribute directive in tag file, attribute label does not accept any expressions
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10. Re: Dynamic <rich:tab>

yevgen_78 Aug 30, 2007 8:00 AM (in response to vjger)

you can't use <rich:tab label="${requestScope.obj}">

as i see you are not using facelets.
so use <rich:tab label="#{requestScope.obj}">
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11. Re: Dynamic <rich:tab>

vjger Aug 30, 2007 9:19 AM (in response to vjger)

"yevgen_78" wrote:
you can't use <rich:tab label="${requestScope.obj}">

as i see you are not using facelets.
so use <rich:tab label="#{requestScope.obj}">

if you read my previous posts you'll see that I did it.

It is possible to create the tabbed menu dynamically and if yes, how?
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