Trait data_tracker::OnChanged

pub trait OnChanged<T>: Send {
    fn on_changed(&self, old_value: &T, new_value: &T);
}

Trait defining change notification callback function.

Required Methods

fn on_changed(&self, old_value: &T, new_value: &T)

Implementors

• impl<F, T> OnChanged<T> for F where
    F: Fn(&T, &T) -> () + Send,