h:dataTable with java.util.Set

From: <webtier_at_javadesktop.org>
Date: Fri, 25 Dec 2009 02:10:09 PST

Hi,

I wanna use the h:dataTable with a java.util.Set as list value like this:

Bean:

@ManagedBean
@RequestScoped
public class MyBean {
        private Set<MyDomain> myDomains;
        public MyBean() {
                myDomains = new LinkedHashSet<MyDomain>();
                myDomains.add(new MyDomain("1", "eins"));
                myDomains.add(new MyDomain("2", "zwei"));
                myDomains.add(new MyDomain("3", "drei"));
                myDomains.add(new MyDomain("4", "vier"));
        }
        public Set<MyDomain> getMyDomains() {
                return myDomains;
        }
        public void setMyDomains(Set<MyDomain> myDomains) {
                this.myDomains = myDomains;
        }
}

h:dataTable

        <h:dataTable value="#{myBean.myDomains}" var="i">
                <h:column>
                        <h:outputText value="#{i.key}" />
                </h:column>
                <h:column>
                        <h:outputText value="#{i.value}" />
                </h:column>
        </h:dataTable>

I get the following exception:
javax.el.PropertyNotFoundException: /index.xhtml @11,37 value="#{i.key}": Property 'key' not found on type java.util.LinkedHashSet
        at com.sun.faces.facelets.el.TagValueExpression.getValue(TagValueExpression.java:104)
        at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:190)
        at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:178)
        at javax.faces.component.UIOutput.getValue(UIOutput.java:168)

BTW with java.util.List everything works fine!

Any ideas?
Is that a bug (IMO it must be ;-))

Alex
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