|  |  | 
 |  |  | package com.zy.asrs.wcs.rcs.service.impl; | 
 |  |  |  | 
 |  |  | import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper; | 
 |  |  | import com.zy.asrs.wcs.rcs.mapper.DeviceTypeMapper; | 
 |  |  | import com.zy.asrs.wcs.rcs.entity.DeviceType; | 
 |  |  | import com.zy.asrs.wcs.rcs.service.DeviceTypeService; | 
 |  |  | 
 |  |  | @Service("deviceTypeService") | 
 |  |  | public class DeviceTypeServiceImpl extends ServiceImpl<DeviceTypeMapper, DeviceType> implements DeviceTypeService { | 
 |  |  |  | 
 |  |  |     @Override | 
 |  |  |     public DeviceType selectByFlag(String flag) { | 
 |  |  |         return this.getOne(new LambdaQueryWrapper<DeviceType>().eq(DeviceType::getFlag, flag)); | 
 |  |  |     } | 
 |  |  |  | 
 |  |  | } |