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