com.jeesuite.mybatis.plugin.cache.QueryCacheMethodMetadata Maven / Gradle / Ivy
package com.jeesuite.mybatis.plugin.cache;
import org.apache.commons.lang3.RandomUtils;
import com.jeesuite.cache.CacheExpires;
/**
* 查询方法缓存元信息
*
*
* Class Name : QueryMethodCache
*
* @author jiangwei
* @version 1.0.0
* @date Dec 23, 2020
*/
public class QueryCacheMethodMetadata {
String methodName;
String keyPattern;
public String cacheGroupKey;//缓存组key
long expire;//过期时间（秒）
boolean isPk = false;//主键查询
boolean uniqueIndex = false;
boolean collectionResult = false;//查询结果是集合
public boolean groupRalated = false; //是否需要关联group
String[] fieldNames;//作为查询条件的字段名称
boolean checkExpired = false; //是否需要检查缓存过期时间
String contextParam;
boolean concurrency = true;
String refKey;
public QueryCacheMethodMetadata() {}
public long getExpire() {
if(expire == 0) {
return CacheExpires.todayEndSeconds();
}
//缓存时间加上随机，防止造成缓存同时失效雪崩
long rnd = RandomUtils.nextLong(0, CacheExpires.IN_1HOUR);
return expire + (rnd > expire ? RandomUtils.nextLong(0, expire) : rnd);
}
/**
* 是否需要通过关联主键二次查询
* @return
*/
public boolean isSecondQueryById(){
return isPk == false && uniqueIndex;
}
}