/**
 * Copyright (C), 2015-2019
 * Author:   HJL
 * Date:     2019/6/4 15:51
 * Description: 定义DataSource的注解
 */
package com.emr.util;


import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

//RetentionPolicy.RUNTIME注解不仅被保存到class文件中，jvm加载class文件之后，仍然存在
@Retention(RetentionPolicy.RUNTIME)
@Target({ElementType.METHOD, ElementType.TYPE})
@Documented
public @interface DataSourceChange {
    String dataSource() default "";
}