Annotation Interface Subscribe

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

Subscribe Annotation 订阅注解

Marks a method as an event subscriber.

标记方法为事件订阅者。

Requirements | 要求:

• Method must have exactly one parameter - 方法必须只有一个参数
• Parameter type must be Event or subclass - 参数类型必须是Event或其子类
• Method can be any visibility - 方法可以是任意可见性

Usage Examples | 使用示例:

public class UserEventHandler {
    @Subscribe
    public void onUserRegistered(UserRegisteredEvent event) {
        // Handle user registration
    }

    @Subscribe
    @Async
    public void onUserRegisteredAsync(UserRegisteredEvent event) {
        // Handle asynchronously
    }

    @Subscribe
    @Priority(100)
    public void onUserRegisteredFirst(UserRegisteredEvent event) {
        // Handle with high priority
    }
}

// Register the handler
OpenEvent.getDefault().register(new UserEventHandler());

Features | 主要功能:

• Core functionality - 核心功能

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