JVM Redux API

Dispatcher.java

interface Dispatcher {
    Object dispatch(Object action);
}

Middleware.java

interface Middleware<S> {
    Object dispatch(Store<S> store, Object action, Dispatcher next);
}

Reducer.java

interface Reducer<S> {
    S reduce(S state, Object action);
}

Store.java

interface Store<S> extends Dispatcher {
    S getState();

    Subscription subscribe(Subscriber subscriber);

    void replaceReducer(Reducer<S> reducer);

    interface Creator<S> {
        Store<S> create(Reducer<S> reducer, S initialState, Enhancer<S> enhancer);
    }

    interface Enhancer<S> {
        Creator<S> enhance(Creator<S> next);
    }

    interface Subscriber {
        void onStateChanged();
    }

    interface Subscription {
        void unsubscribe();
    }
}