/*
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* Copyright (c) 2018-2028, DreamLu All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* Neither the name of the dreamlu.net developer nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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* Author: DreamLu 卢春梦 (596392912@qq.com)
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*/
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package org.springblade.core.redis.lock;
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import java.lang.annotation.*;
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import java.util.concurrent.TimeUnit;
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/**
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* 分布式锁注解，redisson，支持的锁的种类有很多，适合注解形式的只有重入锁、公平锁
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*
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* <p>
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* 1. 可重入锁（Reentrant Lock）
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* 2. 公平锁（Fair Lock）
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* 3. 联锁（MultiLock）
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* 4. 红锁（RedLock）
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* 5. 读写锁（ReadWriteLock）
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* </p>
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*
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* @author L.cm
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*/
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@Retention(RetentionPolicy.RUNTIME)
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@Target(ElementType.METHOD)
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@Documented
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public @interface RedisLock {
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/**
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* 分布式锁的 key，必须：请保持唯一性
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*
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* @return key
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*/
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String value();
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/**
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* 分布式锁参数，可选，支持 spring el # 读取方法参数和 @ 读取 spring bean
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*
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* @return param
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*/
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String param() default "";
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/**
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* 等待锁超时时间，默认30
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*
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* @return int
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*/
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long waitTime() default 30;
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/**
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* 自动解锁时间，自动解锁时间一定得大于方法执行时间，否则会导致锁提前释放，默认100
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*
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* @return int
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*/
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long leaseTime() default 100;
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/**
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* 时间单温，默认为秒
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*
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* @return 时间单位
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*/
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TimeUnit timeUnit() default TimeUnit.SECONDS;
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/**
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* 默认公平锁
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*
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* @return LockType
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*/
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LockType type() default LockType.FAIR;
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}
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