private void validate(FormField field) {
String value = (String) workingInstance.get(field.getId());
FieldContainer container = containers.get(field.getId());
if (field.isRequired() && Strings.isNullOrEmpty(value)) {
container.setInvalid(I18N.CONSTANTS.requiredFieldMessage());
} else {
container.setValid();
}
}
private void addField(final FormField field) {
FormTree.Node node = viewModel.getFormTree().getRootField(field.getId());
FormFieldWidget widget =
widgetFactory.createWidget(
viewModel,
node,
new ValueUpdater() {
@Override
public void update(Object value) {
onFieldUpdated(field, value);
}
});
FieldContainer container = containerFactory.createContainer(field, widget);
containers.put(field.getId(), container);
panel.add(container);
}
private void onFieldUpdated(FormField field, Object newValue) {
if (!Objects.equals(workingInstance.get(field.getId()), newValue)) {
workingInstance.set(field.getId(), newValue);
validate(field);
}
}