Chips: validator acts on list instead of item

Using e.g. <f:validateLongRange minimum="0" maximum="42" /> in the chips component does not work as the validator acts on the value list instead of the single items. Adding a valid integer item results in a validation error. It seems impossible to use List<Integer>.

On the other hand, adding a string to the int list immediatelly throws an error. The validator is not called at all.

Environment:

• PF Version: 8.0.2
• Mojarra 2.3.14

Expected behavior The validator validates an added item before the item is finally added to the list.

[melloware]

Actually the more i think about this maybe it should handle this. reopening.

[svenhaag]

Thanks @melloware, that’s exactly what I already did. Like so:

public void validate(FacesContext context, UIComponent component, Object value) throws ValidatorException {
  List list = (List) value;
  for (Object entry : list) {
    if (null != entry) {
      final long longValue = Long.parseLong(String.valueOf(entry));
      if (666L == longValue) { // exemplary
        throw new ValidatorException(...);
      }
    }
  }
}

Additionally I have set up a ValueChangeListener to modify (sort and make unique) the Chips entries, like so:

public void handleChipsValueChange(final ValueChangeEvent event) {
	final List<String> newList = ((List<String>) event.getNewValue());
	newList.removeAll(Collections.singleton(null));
	newList.sort(Comparator.comparingInt(Integer::valueOf));

	// remove duplicates in place
	final Set<String> deDuplicated = new HashSet<>();
	Iterator<String> it = newList.iterator();
	while (it.hasNext()) {
		final String entry = it.next();
		if (deDuplicated.contains(entry)) {
			it.remove();
		} else {
			deDuplicated.add(entry);
		}
	}
}

Cheers