Model-driven Listboxes

<?variable-resolver class="org.zkoss.zkplus.jndi.JndiVariableResolver" ?>
<?init class="org.zkoss.zkplus.databind.AnnotateDataBinderInit"?>

<zk>
	<zscript>
		import org.zkoss.zk.ui.util.*;
	
		public class Provider {
			private String providerName;

			public Provider(String pn) {
				setProviderName(pn);
			}

			public String getProviderName() {
				return providerName;
			}
			public void setProviderName(String pn) {
				providerName = pn;
			}

		}

		List Providers = new ArrayList();
		Providers.add(new Provider("providerName1"));
		Providers.add(new Provider("providerName2"));
		Providers.add(new Provider("providerName3"));

		Provider outsideProvider = new Provider("providerNameOutside");

		public class aZKLabelConvert extends org.zkoss.zul.Label {
			public void onCreate() {
				hasParentWindow();					
			}	
			
			// Why does this cause the list box to not show values but has no affect on the labels outside of the list
			// just delete and the list box will show the names of the providers

			public void setValue(String value){
				super.setValue(value);
				hasParentWindow();
			}
			
			// Why can't the items in the listbox get to the parent window?

			private void hasParentWindow(){
				Component comp = this;
				while (comp != null && !(comp.getAttribute("composer") != null) && !(comp.getAttribute("composer") instanceof ManagementDetailComposer)) {
					System.out.println(comp);
					comp = comp.getParent();										
				}
				if (comp == null) {
					System.out.println("Could not find composer");
				} else {
					System.out.println(comp + " -- " + comp.getAttribute("composer"));
				}	
			}
			
		}	
			
		public class ManagementDetailComposer extends GenericAutowireComposer {
			public void doAfterCompose(Component comp) throws Exception {
				super.doAfterCompose(comp);

				comp.setAttribute("composer", this);
				page.setAttribute(comp.getId() + "Composer", this, true);
			}
		}
		
	</zscript>

	<window id="winId" width="100%" apply="ManagementDetailComposer" vflex="false" >
		<listbox fixedLayout="true" mold="paging" model="@{Providers}"  height="140px">
			<listhead>
				<listheader label="Provider"/>
			</listhead>
			<listitem self="@{each=aProvider}">
				<listcell> 
					<label value="@{aProvider.providerName}" use="aZKLabelConvert" />
				</listcell>
			</listitem>
		</listbox>
		<label id="outsidelabel" value="@{outsideProvider.providerName}" use="aZKLabelConvert" />
	</window>
</zk>