SubStore

class SubStore<P, D>(parent: Store<P>, lens: Lens<P, D>) : Store<D>

A Store that is derived from your RootStore or another SubStore that represents a part of the data-model of its parent. Use the .sub-factory-method on the parent Store to create it.

Constructors

SubStore

fun <P, D> SubStore(parent: Store<P>, lens: Lens<P, D>)

Functions

enqueue

open suspend override fun enqueue(update: Update<D>)

Since a SubStore is just a view on a RootStore holding the real value, it forwards the Update to it, using it's Lens to transform it.

errorHandler

open fun errorHandler(cause: Throwable)

Default error handler printing the error to console.

handle

open fun handle(execute: suspend (D) -> D): SimpleHandler<Unit>

Factory method to create a SimpleHandler that does not take an Action

open fun <A> handle(execute: suspend (D, A) -> D): SimpleHandler<A>

Factory method to create a SimpleHandler mapping the actual value of the Store and a given Action to a new value.

handleAndEmit

open fun <E> handleAndEmit(execute: suspend FlowCollector<E>.(D) -> D): EmittingHandler<Unit, E>

factory method to create an EmittingHandler that does not take an action in it's execute-lambda.

open fun <A, E> handleAndEmit(execute: suspend FlowCollector<E>.(D, A) -> D): EmittingHandler<A, E>

Factory method to create a EmittingHandler taking an action-value and the current store value to derive the new value. An EmittingHandler is a Flow by itself and can therefore be connected to other SimpleHandlers even in other Stores.