9:11 a.m.
What I was trying to achieve was a generic sortable header for dataTable. Here's the
template:
header.xhtml
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
| "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
| <ui:composition xmlns:h="http://java.sun.com/jsf/html"
| xmlns:f="http://java.sun.com/jsf/core"
| xmlns:ui="http://java.sun.com/jsf/facelets">
| <h:column>
| <f:facet name="header">
| <h:commandLink action="#{bean.sort(columnName)}">
| <h:outputText value="#{columnLabel}" />
| <h:outputText value="#{sortAscending ? ' ASC' : '
DESC'}"
| rendered="#{sortColumn == columnName}" />
| </h:commandLink>
| </f:facet>
| <ui:insert />
| </h:column>
| </ui:composition>
|
This template is declared in Facelet taglib as:
<?xml version="1.0"?>
| <!DOCTYPE facelet-taglib PUBLIC
| "-//Sun Microsystems, Inc.//DTD Facelet Taglib 1.0//EN"
|
"https://facelets.dev.java.net/source/browse/*checkout*/facelets/src/etc/facelet-taglib_1_0.dtd">
| <facelet-taglib>
| <namespace>http://www.tdsecurities.com/jsf</namespace>
| <tag>
| <tag-name>header</tag-name>
| <source>tags/header.xhtml</source>
| </tag>
| </facelet-taglib>
|
and is used as follows:
<h:dataTable id="table" var="auditRecord"
value="#{auditRecords}" rows="10">
| <c:header bean="#{auditLog}" columnName="id"
columnLabel="ID">
| <h:commandLink value="#{auditRecord.id}"
action="#{auditLog.select}" />
| </c:header>
| </h:dataTable>
|
The link renders, but clicking on it yields:
ERROR [org.jboss.seam.web.ExceptionFilter] - uncaught exception
| javax.servlet.ServletException: Error calling action method of component with id
_id4:table:_id19
| at javax.faces.webapp.FacesServlet.service(FacesServlet.java:154)
| at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
| at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
| at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:63)
| at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:60)
| at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
| at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
| at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
| at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:57)
| at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
| at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:79)
| at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
| at org.jboss.seam.web.SeamFilter.doFilter(SeamFilter.java:84)
| at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
| at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
| at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
| at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
| at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
| at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
| at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
| at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
| at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
| at
org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
| at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
| at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
| at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
| at java.lang.Thread.run(Thread.java:595)
| ERROR [org.jboss.seam.web.ExceptionFilter] - exception root cause
| javax.faces.FacesException: Error calling action method of component with id
_id4:table:_id19
| at
org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:77)
| at javax.faces.component.UICommand.broadcast(UICommand.java:109)
| at javax.faces.component.UIData.broadcast(UIData.java:517)
| at javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:97)
| at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:171)
| at
org.apache.myfaces.lifecycle.InvokeApplicationExecutor.execute(InvokeApplicationExecutor.java:32)
| at org.apache.myfaces.lifecycle.LifecycleImpl.executePhase(LifecycleImpl.java:95)
| at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:70)
| at javax.faces.webapp.FacesServlet.service(FacesServlet.java:139)
| at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
| at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
| at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:63)
| at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:60)
| at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
| at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
| at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
| at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:57)
| at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
| at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:79)
| at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49)
| at org.jboss.seam.web.SeamFilter.doFilter(SeamFilter.java:84)
| 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.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$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
| at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
| at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
| at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
| at java.lang.Thread.run(Thread.java:595)
| Caused by: java.lang.NullPointerException
| at
org.jboss.seam.ui.facelet.MethodExpressionHelper.findParamTypes(MethodExpressionHelper.java:146)
| at
org.jboss.seam.ui.facelet.MethodExpressionHelper.invokeTheExpression(MethodExpressionHelper.java:98)
| at
org.jboss.seam.ui.facelet.ParamMethodExpression.invoke(ParamMethodExpression.java:62)
| at com.sun.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:68)
| at com.sun.facelets.el.LegacyMethodBinding.invoke(LegacyMethodBinding.java:69)
| at
org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:61)
| ... 34 more
- it was supposed to execute auditLog.sort('id'), but apparently failed to
evaluate the #{bean} expression, even though it was passed to the template via
bean="#{auditLog}"
Am I misunderstanding the limits for EL enhancements, maybe? Is it usable in this context
at all?
Thanks,
Alex
View the original post :
http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4035715#...
Reply to the post :
http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...