EventManager

Java 8 事件总线。运行时零依赖，编译需要 Lombok。嵌入复制 src/main/java/dev/hotaru/event。

EventManager bus = new EventManager();

class LoginEvent implements Event {}
class SaveEvent extends CancellableEvent {}

class Handlers {
    @EventTarget(Priority.HIGH)
    void onLogin(LoginEvent e) {}

    @EventTarget(ignoreCancelled = true)
    void onSave(SaveEvent e) { e.cancel(); }
}

bus.register(new Handlers());
bus.call(new LoginEvent());

Subscription sub = bus.register(SaveEvent.class, e -> e.cancel());
sub.unsubscribe();


注册	`register(obj)` / `register(Class)` 静态 / `subscribe` 返回 `Subscription`
分发	`call` 含子类型；`callExact` 仅精确类型
优先级	越小越先：`HIGHEST 0` · `HIGH 5` · `NORMAL 10` · `LOW 15` · `LOWEST 20`
取消	`CancellableEvent` 只打标；`ignoreCancelled` 才跳过
停止	`StoppableEvent.stop()` 中止后续；`CancellableStoppableEvent.cancel()` 同时停止
异常	互不影响，走 `EventErrorHandler`

gradlew.bat test
gradlew.bat build

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EventManager