[jboss-user] [JBoss Seam] - Re: Handling database exceptions

[shakenbrain]

Understood.  Gavin, thanks for your response.

Getting back to validating then, it appears that using a @Validator class causes the session to go invalid when it throws a ValidatorException, but only on the whole form submit (it works if you do a partial form submit using ajax4jsf on just that one field, using <a:support>).  Here's a validator class that does nothing but throw the exception:

@Validator
  | @Name("prefixValidator")
  | public class PrefixValidator extends BaseValidator {
  | 
  |   @In
  |   EntityManager entityManager;
  | 
  |   // @Transactional
  |   public void validate(FacesContext context, UIComponent component, Object value)
  |       throws ValidatorException {
  |     
  |     throw new ValidatorException(makeMessage("Prefix is being used already."));
  |     
  |   }
  | }

and the relevent xhtml:

      <s:decorate id="prefixDecorator" template="/decorateField.xhtml">
  |         <ui:define name="label">Prefix</ui:define>
  |         <h:inputText id="prefix" size="4" value="#{selectedOrganization.prefix}" required="true"  disabled="#{!organizationAdmin.new}">
  |           <f:validator validatorId="prefixValidator"/>
  |         </h:inputText>
  |       </s:decorate>

That should work right?  Is this a bug?  I haven't tried this in 2.0 Beta yet, I'll try to do that today.


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