See the posted code below to see how to validate the input. | /** | * @author Thomas Maerz (thomas.maerz(a)primedo.com) | */ | @Name("userHome") | public class UserHome extends EntityHome<User> { | | private static final long serialVersionUID = 1L; | | @In | UserDao userDao; | | public void validateUsername(FacesContext context, UIComponent component, Object value) throws ValidatorException { | User user = userDao.getByUsername((String) value); | if (user == null || user.getId().equals(getInstance().getId())) { | return; | } | throw new ValidatorException(new FacesMessage("")); | } | } | edit.html | <s:decorate template="/templates/edit.html"> | <ui:define name="label">Username</ui:define> | <h:inputText value="#{userHome.instance.username}" validator="#{userHome.validateUsername}" required="true"/> | </s:decorate> | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4125131#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...