List items = (List)WFUtil.invoke(this.managedBeanId,"getContentItems");
List items = getManagedBean().getContentItems();
	public Object getValue(){		if(model==null){			List items = (List)WFUtil.invoke(this.managedBeanId,"getContentItems");			if(items!=null){				model = new WFDataModel();				for (ListIterator iter = items.listIterator(); iter.hasNext();) {					int index = iter.nextIndex();					ContentItem item = (ContentItem) iter.next();					ContentItemBindingBean bean = new ContentItemBindingBean(item);					model.set(bean,index);				}				return model;			}			return super.getValue();		}		return model;	}