code: protected void onPropertyEditorChange(@Observes PropertyEditorChangeEvent event) {
          PropertyEditorFieldInfo property = event.getProperty();
          if (property.getEventId().equalsIgnoreCase(PROPERTY_EDITOR_ID)) {
              String attrKey = property.getKey();
              String attrValue = event.getNewValue();
              presenter.onAttributeChanged(attrKey, attrValue);
          }
      }
docs: Capture & process the modification events sent by the property editor