BeanFieldGroup. Field name of POJO in the method createField

Vaadin 6 / 7 / 8 Framework Data Binding
1

Hey everyone, I need help!
I need to get a field name of my POJO (generic type E) in the method createField.
How can I do it?


private Layout getForm(E object) {
    binder = new BeanFieldGroup<E>(clazz);
    binder.setFieldFactory(new DefaultFieldGroupFieldFactory() {

    @SuppressWarnings({ "rawtypes", "unchecked" })
    @Override
    public <F Field> F createField(Class<?> dataType, Class<F> fieldType) {
if (Set.class.isAssignableFrom(dataType)) {
java.lang.reflect.Field field = clazz.getDeclaredField("current field name of POJO");
ParameterizedType type = (ParameterizedType) field.getGenericType();
            Class<?> classOfSet = (Class<?>) type.getActualTypeArguments()[0]
;

// SetField — it's a CustomField component
  // public class SetField<E extends BaseEntity> extends CustomField<Set<E>> {...}
  return new SetField(classOfSet);
        } else {
            return super.createField(dataType, fieldType);
        }
    }
});
2

Hi,

I think it is not available in new FieldFactories in V7 :frowning: Related issue in our trac: http://dev.vaadin.com/ticket/9748

If you are autogenerating your form views in V7, my suggestion is to use the old Form (and its FormFieldFactory) although it is nowadays deprecated.

cheers,
matti

3

Thank you for your answer!
I’m trying it.