Interface ShopRepository

public interface ShopRepository

Method Summary

Modifier and Type	Method	Description
CompletableFuture<Integer>	adjustStock(String categoryId, String itemId, int delta)	Atomically adjusts stock by delta (negative on buy, positive on sell-back) and returns the new value.
CompletableFuture<Optional<Integer>>	getStock(String categoryId, String itemId)
CompletableFuture<Void>	setStock(String categoryId, String itemId, int stock)

Method Details

getStock

CompletableFuture<Optional<Integer>> getStock(String categoryId,
 String itemId)

setStock

CompletableFuture<Void> setStock(String categoryId,
 String itemId,
 int stock)

adjustStock

CompletableFuture<Integer> adjustStock(String categoryId,
 String itemId,
 int delta)

Atomically adjusts stock by delta (negative on buy, positive on sell-back) and returns the new value.