Annotation Interface Async

@Target(METHOD)
@Retention(RUNTIME)
public @interface Async

Async Processing Annotation 异步处理注解

Marks an event handler method for asynchronous execution.

标记事件处理方法为异步执行。

Features | 主要功能:

• Non-blocking event handling - 非阻塞事件处理
• Virtual thread execution (JDK 25+) - 虚拟线程执行
• Suitable for IO-bound operations - 适合IO密集型操作

Usage Examples | 使用示例:

@Subscribe
@Async
public void onOrderCreated(OrderCreatedEvent event) {
    // This runs in a virtual thread
    sendNotificationEmail(event);
    updateAnalytics(event);
}

Note | 注意:

Async handlers run independently and exceptions won't affect other handlers.

异步处理器独立运行，异常不会影响其他处理器。

Security | 安全性:

• Thread-safe: Yes (immutable) - 线程安全: 是（不可变）

Since:

JDK 25, opencode-base-event V1.0.0

Author:

Leon Soo www.LeonSoo.com

See Also:

• OpenCode.cloud