Problem calling resultList.size() on framework entity-query

[david.spark]

I'm trying to get the number of results from the following query (in components.xml):

<framework:entity-query
 name="clients"
 ejbql="SELECT c FROM Client c"
 max-results="20"/>

And this is in my page:

<h:outputText value="#{clients.resultList.size()} clients available"/>

But when I try to load the page I get the following error (I also use the query to create a dataTable and that works fine):

javax.faces.FacesException: javax.el.ELException: /clientSelect.xhtml @14,77 value="#{clients.resultList.size()} clients available": java.lang.IllegalAccessException: Class org.jboss.el.util.ReflectionUtil can not access a member of class java.util.SubList with modifiers "public"
 at javax.faces.component.UIOutput.getValue(UIOutput.java:176)
 at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getValue(HtmlBasicInputRenderer.java:189)
 at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:320)
 at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeEnd(HtmlBasicRenderer.java:200)
 at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:836)
 at org.ajax4jsf.framework.renderer.RendererBase.renderChild(RendererBase.java:286)
 at org.ajax4jsf.framework.renderer.RendererBase.renderChildren(RendererBase.java:262)
 at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:189)
 at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:184)
 at org.ajax4jsf.framework.renderer.RendererBase.encodeChildren(RendererBase.java:121)
 at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
 at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)
 at javax.faces.component.UIComponent.encodeAll(UIComponent.java:892)
 at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:577)
 at org.ajax4jsf.framework.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
 at org.ajax4jsf.framework.ajax.AjaxViewHandler.renderView(AjaxViewHandler.java:232)
 at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106)
 at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
 at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144)
 at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
 at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:63)
 at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
 at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:87)
 at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
 at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:63)
 at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
 at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:46)
 at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
 at org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:126)
Caused by: javax.el.ELException: /clientSelect.xhtml @14,77 value="#{clients.resultList.size()} clients available": java.lang.IllegalAccessException: Class org.jboss.el.util.ReflectionUtil can not access a member of class java.util.SubList with modifiers "public"
 at com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:76)
 at javax.faces.component.UIOutput.getValue(UIOutput.java:173)
 at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getValue(HtmlBasicInputRenderer.java:189)
 at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:320)
 at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeEnd(HtmlBasicRenderer.java:200)
 at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:836)
 at org.ajax4jsf.framework.renderer.RendererBase.renderChild(RendererBase.java:286)
 at org.ajax4jsf.framework.renderer.RendererBase.renderChildren(RendererBase.java:262)
 at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:189)
 at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:184)
 at org.ajax4jsf.framework.renderer.RendererBase.encodeChildren(RendererBase.java:121)
 at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
 at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)
 at javax.faces.component.UIComponent.encodeAll(UIComponent.java:892)
 at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:577)
 at org.ajax4jsf.framework.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
 at org.ajax4jsf.framework.ajax.AjaxViewHandler.renderView(AjaxViewHandler.java:232)
 at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106)
 at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
 at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144)
 at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
 at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
 at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:63)
 at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
 at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:87)
 at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
 at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:63)
 at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
 at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:46)
 at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
Caused by: java.lang.IllegalAccessException: Class org.jboss.el.util.ReflectionUtil can not access a member of class java.util.SubList with modifiers "public"
 at sun.reflect.Reflection.ensureMemberAccess(Reflection.java:65)
 at java.lang.reflect.Method.invoke(Method.java:578)
 at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:325)
 at org.jboss.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:270)
 at org.jboss.el.parser.AstMethodSuffix.getValue(AstMethodSuffix.java:59)
 at org.jboss.el.parser.AstValue.getValue(AstValue.java:67)
 at org.jboss.el.parser.AstDeferredExpression.getValue(AstDeferredExpression.java:26)
 at org.jboss.el.parser.AstCompositeExpression.getValue(AstCompositeExpression.java:31)
 at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
 at com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:71)
 at javax.faces.component.UIOutput.getValue(UIOutput.java:173)
 at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getValue(HtmlBasicInputRenderer.java:189)
 at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:320)
 at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeEnd(HtmlBasicRenderer.java:200)
 at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:836)
 at org.ajax4jsf.framework.renderer.RendererBase.renderChild(RendererBase.java:286)
 at org.ajax4jsf.framework.renderer.RendererBase.renderChildren(RendererBase.java:262)
 at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:189)
 at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:184)
 at org.ajax4jsf.framework.renderer.RendererBase.encodeChildren(RendererBase.java:121)
 at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:812)
 at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)
 at javax.faces.component.UIComponent.encodeAll(UIComponent.java:892)
 at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:577)
 at org.ajax4jsf.framework.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
 at org.ajax4jsf.framework.ajax.AjaxViewHandler.renderView(AjaxViewHandler.java:232)
 at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106)
 at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
 at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144)
 at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

[pmuir]

Please report this as a bug in JIRA in the EL component.

[pmuir]

Here is the patch to reproduce

### Eclipse Workspace Patch 1.0
#P jboss-seam
Index: examples/ui/resources/WEB-INF/components.xml
===================================================================
RCS file: /cvsroot/jboss/jboss-seam/examples/ui/resources/WEB-INF/components.xml,v
retrieving revision 1.9
diff -u -r1.9 components.xml
--- examples/ui/resources/WEB-INF/components.xml 1 Aug 2007 11:49:57 -0000 1.9
+++ examples/ui/resources/WEB-INF/components.xml 3 Aug 2007 12:11:52 -0000
@@ -21,7 +21,7 @@

 <framework:entity-home name="personHome" entity-class="org.jboss.seam.example.ui.Person" />

- <framework:entity-query name="colours" ejbql="select c from Colour c" />
+ <framework:entity-query name="colours" ejbql="select c from Colour c" max-results="2" />

 <framework:entity-query name="books" ejbql="select b from Book b" />

Index: examples/ui/view/index.xhtml
===================================================================
RCS file: /cvsroot/jboss/jboss-seam/examples/ui/view/index.xhtml,v
retrieving revision 1.4
diff -u -r1.4 index.xhtml
--- examples/ui/view/index.xhtml 13 Jun 2007 23:49:05 -0000 1.4
+++ examples/ui/view/index.xhtml 3 Aug 2007 12:11:52 -0000
@@ -10,5 +10,6 @@
 <ui:param name="tagName" value="" />
 <ui:define name="body">
 <p>Seam ui components</p>
+ <h:outputText value="#{colours.resultList.size()}" />
 </ui:define>
 </ui:composition>
\ No newline at end of file

And visit the index.xhtml page on the ui example

[gledson.rabelo]

I have the same problem.

Does anybody know if this problem was fixed? Are there any workaround?

How could I know the size of resultList?


Thanks in advance,

Gledson

[pmuir]

http://jira.jboss.com/jira/browse/JBSEAM-1756 - I've scheduled it for 2.0.1.GA and will look at it early next week.