This is what I have in my view: | <h:outputText value="Count = #{cspecInfo.attributeCount}" /> | <h:dataTable value="#{cspecInfo.componentAttributes}" var="attr" | rows="25" > | <h:column> | <h:outputText value="#{attr.name}" /> | </h:column> | </h:dataTable> | The cspecInfo refers to an Entity that has a Set that is obtained as the value. (The output above refers to a transient attribute in the Entity bean (attributeCount). I get the correct count as output. So I know I have things in the set. When I try to render the #{attr.name} I get the following error: | ALLVARLIG: Error Rendering View[/cspec-view.xhtml] | javax.faces.el.PropertyNotFoundException: /cspec-view.xhtml @113,43 value="#{attr.name}": Bean: org.hibernate.collection.PersistentSet, property: name | at com.sun.facelets.el.LegacyValueBinding.getValue(LegacyValueBinding.java:58) | at javax.faces.component.UIOutput.getValue(UIOutput.java:77) | at org.apache.myfaces.shared_impl.renderkit.RendererUtils.getStringValue(RendererUtils.java:217) | at org.apache.myfaces.shared_impl.renderkit.html.HtmlTextRendererBase.renderOutput(HtmlTextRendererBase.java:69) | at org.apache.myfaces.shared_impl.renderkit.html.HtmlTextRendererBase.encodeEnd(HtmlTextRendererBase.java:57) | at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:536) | at org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChild(RendererUtils.java:442) | at org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChildren(RendererUtils.java:419) | at org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChild(RendererUtils.java:440) | at org.apache.myfaces.shared_impl.renderkit.html.HtmlTableRendererBase.renderColumnBody(HtmlTableRendererBase.java:332) | at org.apache.myfaces.shared_impl.renderkit.html.HtmlTableRendererBase.encodeColumnChild(HtmlTableRendererBase.java:301) | at org.apache.myfaces.shared_impl.renderkit.html.HtmlTableRendererBase.encodeInnerHtml(HtmlTableRendererBase.java:277) | at org.apache.myfaces.shared_impl.renderkit.html.HtmlTableRendererBase.encodeChildren(HtmlTableRendererBase.java:123) | at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:524) | at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:244) | at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:249) | at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:573) | at org.ajax4jsf.framework.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:101) | at org.ajax4jsf.framework.ajax.AjaxViewHandler.renderView(AjaxViewHandler.java:222) | 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.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:63) | at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:57) | at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:49) | at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45) | 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.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:75) | at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:213) | 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:432) | 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.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156) | 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:619) | ComponentAttribute does have the attribute "name". If I ouput something else - like static string - I get one row per object in the set (with the fixed string). This is what the parent (what cspecInfo refers to) has as definition: | private Set<ComponentAttribute> m_componentAttributes; | @OneToMany(mappedBy="spec") | public Set<ComponentAttribute> getComponentAttributes() | { | return m_componentAttributes; | } | public void setComponentAttributes(Set<ComponentAttribute> attributes) | { | m_componentAttributes = attributes; | } | @Transient | public String getAttributeCount() | { | if(m_componentAttributes == null) | return "0"; | return new Integer(m_componentAttributes.size()).toString(); | } | And the corresponding part in the detail entity looks like this: | private ComponentSpec m_spec; | | @NotNull | @Length(min = 1, max = 100) | @Column(unique = true) | public String getName() | { | return m_name; | } | (it has an id column called 'cattr_id') So - what am I doing wrong? Should I access the data some other way? Regards - henrik View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4033410#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...