Trait kas::updatable::UpdatableHandler

pub trait UpdatableHandler<K, M>: Updatable {
    fn handle(&self, key: &K, msg: &M) -> Option<UpdateHandle>;
}

Trait for data objects which can handle messages

Required methods

fn handle(&self, key: &K, msg: &M) -> Option<UpdateHandle>

Update data, if supported

This is optional and required only to support data updates through view widgets. If implemented, then Updatable::update_handle should return a copy of the same update handle.

This method should return some UpdateHandle if the data was changed by this method, or None if nothing happened.

This method takes only &self, thus probably RefCell will be used internally, alongside an UpdateHandle.

Implementations on Foreign Types

impl<K, M, T> UpdatableHandler<K, M> for Arc<T> where
    T: UpdatableHandler<K, M> + ?Sized, 

pub fn handle(&self, key: &K, msg: &M) -> Option<UpdateHandle>

impl<K, M, T> UpdatableHandler<K, M> for Box<T, Global> where
    T: UpdatableHandler<K, M> + ?Sized, 

pub fn handle(&self, key: &K, msg: &M) -> Option<UpdateHandle>

impl<K, M, T> UpdatableHandler<K, M> for Rc<T> where
    T: UpdatableHandler<K, M> + ?Sized, 

pub fn handle(&self, key: &K, msg: &M) -> Option<UpdateHandle>

impl<T, M> UpdatableHandler<usize, M> for [T] where
    T: Debug, 

pub fn handle(&self, &usize, &M) -> Option<UpdateHandle>

impl<'_, K, M, T> UpdatableHandler<K, M> for &'_ mut T where
    T: UpdatableHandler<K, M> + ?Sized, 

pub fn handle(&self, key: &K, msg: &M) -> Option<UpdateHandle>

impl<K, T, M> UpdatableHandler<K, M> for BTreeMap<K, T> where
    T: Clone + Debug,
    K: Ord + Eq + Clone + Debug, 

pub fn handle(&self, &K, &M) -> Option<UpdateHandle>

impl<'_, K, M, T> UpdatableHandler<K, M> for &'_ T where
    T: UpdatableHandler<K, M> + ?Sized, 

pub fn handle(&self, key: &K, msg: &M) -> Option<UpdateHandle>

Implementors

impl<K, M, T, F> UpdatableHandler<K, M> for FilteredList<T, F> where
    T: 'static + ListData + UpdatableHandler<K, M>,
    F: Filter<<T as ListData>::Item>, 

impl<T, K, M> UpdatableHandler<K, M> for SharedRc<T> where
    T: Clone + Debug,