[jboss-user] [JBoss Seam] - Re: nested datatables with s:link

[lcoetzee]

I have found a way using MyFaces Tomahawk's updateActionListener. Something like: 
  | <h:form id="section_questions">
  | 			<ul id="linkslist">
  | 				<t:dataList value="#{sections}" var="currentSection" layout="simple"
  | 					rendered="#{not empty sections}" id="dt1"
  | 					rowIndexVar="sectionRowIndex">
  | 					<li><h:outputText value="#{currentSection.sectionLabel}" />
  | 
  | 					<ul>
  | 						<t:dataList value="#{currentSection.questions}"
  | 							var="currentQuestion" layout="simple"
  | 							rowIndexVar="questionRowIndex"
  | 							rendered="#{not empty currentSection.questions}" id="dt2">
  | 							<li><h:commandLink
  | 								action="#{questionSelectionBean.selectQuestion}" id="cl1">
  | 								<h:outputText value="#{currentQuestion.questionLabel}" />
  | 								<t:updateActionListener id="sectionListener"
  | 									property="#{sectionSelectionBean.sectionRowIndex}"
  | 									value="#{sectionRowIndex}" />
  | 
  | 								<t:updateActionListener id="questionListener"
  | 									property="#{sectionSelectionBean.questionRowIndex}"
  | 									value="#{questionRowIndex}" />
  | 
  | 							</h:commandLink></li>
  | 						</t:dataList>
  | 
  | 					</ul>
  | 					</li>
  | 				</t:dataList>
  | 
  | 			</ul>
  | 		</h:form>

Unfortunately the solution forces me to use a form/commandLink action. I get the following exception when trying to use the s:link.


  |  ERROR [STDERR] 2006/07/17 03:23:34 com.sun.facelets.FaceletViewHandler handleRenderException
  | SEVERE: Error Rendering View[/secure/questionnaire/sections.xhtml]
  | java.lang.ClassCastException: org.jboss.seam.ui.HtmlLink
  |         at csir.utils.taghandlers.TomahawkUpdateActionListenerHandler.apply(TomahawkUpdateActionListenerHandler.java:76)
  |         at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:47)
  |         at com.sun.facelets.tag.jsf.ComponentHandler.applyNextHandler(ComponentHandler.java:295)
  |         at com.sun.facelets.tag.jsf.ComponentHandler.apply(ComponentHandler.java:165)
  |         at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:47)
  |         at com.sun.facelets.tag.jsf.ComponentHandler.applyNextHandler(ComponentHandler.java:295)
  |         at com.sun.facelets.tag.jsf.ComponentHandler.apply(ComponentHandler.java:165)
  |         at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:47)
  |         at com.sun.facelets.tag.jsf.ComponentHandler.applyNextHandler(ComponentHandler.java:295)
  |         at com.sun.facelets.tag.jsf.ComponentHandler.apply(ComponentHandler.java:165)
  |         at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:47)
  |         at com.sun.facelets.tag.ui.DefineHandler.apply(DefineHandler.java:58)
  |         at com.sun.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java:128)
  |         at com.sun.facelets.impl.DefaultFaceletContext$TemplateManager.apply(DefaultFaceletContext.java:306)
  |         at com.sun.facelets.impl.DefaultFaceletContext.includeDefinition(DefaultFaceletContext.java:279)
  |         at com.sun.facelets.tag.ui.InsertHandler.apply(InsertHandler.java:68)
  |         at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:47)
  |         at com.sun.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:49)
  |         at com.sun.facelets.tag.CompositeFaceletHandler.apply(CompositeFaceletHandler.java:47)
  |         at com.sun.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:25)
  |         at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:248)
  |         at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:294)
  |         at com.sun.facelets.impl.DefaultFacelet.include(DefaultFacelet.java:273)
  |         at com.sun.facelets.impl.DefaultFaceletContext.includeFacelet(DefaultFaceletContext.java:143)
  |         at com.sun.facelets.tag.ui.CompositionHandler.apply(CompositionHandler.java:113)
  |         at com.sun.facelets.compiler.NamespaceHandler.apply(NamespaceHandler.java:49)
  |         at com.sun.facelets.compiler.EncodingHandler.apply(EncodingHandler.java:25)
  |         at com.sun.facelets.impl.DefaultFacelet.apply(DefaultFacelet.java:95)
  |         at com.sun.facelets.FaceletViewHandler.buildView(FaceletViewHandler.java:510)
  |         at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:553)
  |         at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:384)
  |         at javax.faces.webapp.FacesServlet.service(FacesServlet.java:138)
  |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
  |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |         at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:30)
  |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |         at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:45)
  |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |         at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
  |         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
  |         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
  |         at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
  |         at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
  |         at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
  |         at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524)
  |         at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
  |         at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
  |         at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
  |         at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
  |         at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
  |         at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
  |         at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
  |         at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
  |         at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
  |         at java.lang.Thread.run(Thread.java:595)
  | 

I am using a TomahawkUpdateActionListenerHandler as written by Andrew Robinson (http://www.mail-archive.com/users@myfaces.apache.org/msg09735.html)


 Any ideas ? Ideally I would like to work with s:link and not have the whole form with javascript as generated by the commandLink.

Regards

Louis

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