はてなブックマーク

/** * This is a state class. * It can be as simple as possible implementation, like POJO, or immutable object. */ public class Counter { private final int count; public Counter(int count) { this.count = count; } public int getCount() { return count; } } /** * This is a reducer class. * It should be applied @Reducer annotation is given a state class as an argument. * It describe whether the reducer