/** Retrieve an error by key. */
public ValidationError error(String key) {
List<ValidationError> err = errors.get(key);
if (err == null || err.isEmpty()) {
return null;
} else {
return err.get(0);
}
}
/**
* Retrieves the first global error (an error without any key), if it exists.
*
* @return An error or <code>null</code>.
*/
public ValidationError globalError() {
List<ValidationError> errors = globalErrors();
if (errors.isEmpty()) {
return null;
} else {
return errors.get(0);
}
}