private void setNotNull(final AbstractField field) {
field.setImmediate(true);
if (nullorempty(field.getValue())) {
errors.add(field);
save.setEnabled(false);
}
field.addValueChangeListener(
new Property.ValueChangeListener() {
@Override
public void valueChange(Property.ValueChangeEvent valueChangeEvent) {
if (nullorempty(field.getValue())) errors.add(field);
else errors.remove(field);
save.setEnabled(errors.isEmpty());
}
});
}
