package com.monkeylessey.framework.plugins;

import com.monkeylessey.framework.config.MybatisPlusConfig;
import org.apache.ibatis.executor.Executor;
import org.apache.ibatis.mapping.MappedStatement;
import org.apache.ibatis.plugin.Interceptor;
import org.apache.ibatis.plugin.Intercepts;
import org.apache.ibatis.plugin.Invocation;
import org.apache.ibatis.plugin.Signature;
import org.apache.ibatis.session.ResultHandler;
import org.apache.ibatis.session.RowBounds;

/**
 * mybatis插件demo
 * 针对自己写的mqpper方法才会走这个插件，plus内置方法要想使用插件，只能用plus的插件
 * @see MybatisPlusPluginDemo plus的插件写法
 * @see MybatisPlusConfig  如何配置 line 46 & 56
 *
 * @author xp
 * @data 2023/11/14
 */
@Intercepts(
        @Signature(
                type = Executor.class,
                method = "query",
                args = {MappedStatement.class, Object.class, RowBounds.class, ResultHandler.class}
        )
)
public class MybatisPluginDemo implements Interceptor {

    @Override
    public Object intercept(Invocation invocation) throws Throwable {
        // 执行之前
        System.out.println("mybatis插件执行之前");
        // 执行sql
        Object result = invocation.proceed();
        // 执行之后
        System.out.println("mybatis插件执行之后");
        return result;
    }
}