Trait yew_agent::utils::store::Store

pub trait Store: Sized + 'static {
    type Input;
    type Action;
    fn new() -> Self;
    fn handle_input(
        &self, 
        link: AgentLink<StoreWrapper<Self>>, 
        msg: Self::Input
    );
    fn reduce(&mut self, msg: Self::Action);
}

A functional state wrapper, enforcing a unidirectional data flow and consistent state to the observers.

handle_input receives incoming messages from components, reduce applies changes to the state

The state is sent once whenever a bridge is opened and then once for each Action sent by the handle_input function. This means the initial state of the store must be valid for the consumers.

Once created with a first bridge, a Store will never be destroyed for the lifetime of the application.

Associated Types

type Input

Messages instructing the store to do somethin

type Action

State updates to be consumed by reduce

Required methods

fn new() -> Self

Create a new Store

fn handle_input(&self, link: AgentLink<StoreWrapper<Self>>, msg: Self::Input)

Receives messages from components and other agents. Use the link to send actions to itself in order to notify reduce once your operation completes. This is the place to do side effects, like talking to the server, or asking the user for input.

Note that you can look at the state of your Store, but you cannot modify it here. If you want to modify it, send a Message to the reducer

fn reduce(&mut self, msg: Self::Action)

A pure function, with no side effects. Receives a message, and applies it to the state as it sees fit.

Implementors