程序包 cn.woodwhales.common.mybatisplus

类 MybatisPlusRelationExecutor

java.lang.Object

cn.woodwhales.common.mybatisplus.MybatisPlusRelationExecutor

public class MybatisPlusRelationExecutor
extends Object

一对多查询工具

作者:

woodwhales on 2022-09-05 9:28

构造器概要

构造器

构造器	说明
MybatisPlusRelationExecutor()

方法概要

修饰符和类型	方法	说明
static <LeftId extends Serializable,LeftService extends com.baomidou.mybatisplus.extension.service.impl.ServiceImpl<LeftMapper,LeftEntity>,LeftMapper extends com.baomidou.mybatisplus.core.mapper.BaseMapper<LeftEntity>,LeftEntity,RelationService extends com.baomidou.mybatisplus.extension.service.impl.ServiceImpl<RelationMapper,RelationEntity>,RelationMapper extends com.baomidou.mybatisplus.core.mapper.BaseMapper<RelationEntity>,RelationEntity> List<RelationEntity>	executeQuery(LeftId leftId, LeftService leftService, java.util.function.Function<LeftEntity,?> getLeftIdFunction, RelationService relationService, com.baomidou.mybatisplus.core.toolkit.support.SFunction<RelationEntity,LeftId> getLeftIdRelationFunction)	一对多查询
static <LeftId extends Serializable,RightId,LeftService extends com.baomidou.mybatisplus.extension.service.impl.ServiceImpl<LeftMapper,LeftEntity>,LeftMapper extends com.baomidou.mybatisplus.core.mapper.BaseMapper<LeftEntity>,LeftEntity,RelationService extends com.baomidou.mybatisplus.extension.service.impl.ServiceImpl<RelationMapper,RelationEntity>,RelationMapper extends com.baomidou.mybatisplus.core.mapper.BaseMapper<RelationEntity>,RelationEntity,RightService extends com.baomidou.mybatisplus.extension.service.impl.ServiceImpl<RightMapper,RightEntity>,RightMapper extends com.baomidou.mybatisplus.core.mapper.BaseMapper<RightEntity>,RightEntity> List<RightEntity>	executeQuery(LeftId leftId, LeftService leftService, java.util.function.Function<LeftEntity,?> getLeftIdFunction, RelationService relationService, com.baomidou.mybatisplus.core.toolkit.support.SFunction<RelationEntity,LeftId> getLeftIdRelationFunction, java.util.function.Function<RelationEntity,RightId> getRightIdRelationFunction, RightService rightService, com.baomidou.mybatisplus.core.toolkit.support.SFunction<RightEntity,?> getRightIdFunction)	多对多查询

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

MybatisPlusRelationExecutor

public MybatisPlusRelationExecutor()

方法详细资料

executeQuery

public static <LeftId extends Serializable,LeftService extends com.baomidou.mybatisplus.extension.service.impl.ServiceImpl<LeftMapper,LeftEntity>,LeftMapper extends com.baomidou.mybatisplus.core.mapper.BaseMapper<LeftEntity>,LeftEntity,RelationService extends com.baomidou.mybatisplus.extension.service.impl.ServiceImpl<RelationMapper,RelationEntity>,RelationMapper extends com.baomidou.mybatisplus.core.mapper.BaseMapper<RelationEntity>,RelationEntity> List<RelationEntity> executeQuery(LeftId leftId,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        LeftService leftService,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        java.util.function.Function<LeftEntity,?> getLeftIdFunction,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        RelationService relationService,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        com.baomidou.mybatisplus.core.toolkit.support.SFunction<RelationEntity,LeftId> getLeftIdRelationFunction)

一对多查询

类型参数:

LeftId - 业务id类型

LeftService - 业务关系的id类型

LeftMapper - 业务mapper类型

LeftEntity - 业务对象类型

RelationService - 业务关系service类型

RelationMapper - 业务关系mapper类型

RelationEntity - 业务关系对象类型

参数:

leftId - 业务id

leftService - 业务service

getLeftIdFunction - 获取业务对象主键

relationService - 获取关系service

getLeftIdRelationFunction - 获取业务id的接口

返回:

业务id对应的业务关系对象集合

executeQuery

public static <LeftId extends Serializable,RightId,LeftService extends com.baomidou.mybatisplus.extension.service.impl.ServiceImpl<LeftMapper,LeftEntity>,LeftMapper extends com.baomidou.mybatisplus.core.mapper.BaseMapper<LeftEntity>,LeftEntity,RelationService extends com.baomidou.mybatisplus.extension.service.impl.ServiceImpl<RelationMapper,RelationEntity>,RelationMapper extends com.baomidou.mybatisplus.core.mapper.BaseMapper<RelationEntity>,RelationEntity,RightService extends com.baomidou.mybatisplus.extension.service.impl.ServiceImpl<RightMapper,RightEntity>,RightMapper extends com.baomidou.mybatisplus.core.mapper.BaseMapper<RightEntity>,RightEntity> List<RightEntity> executeQuery(LeftId leftId,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  LeftService leftService,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  java.util.function.Function<LeftEntity,?> getLeftIdFunction,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  RelationService relationService,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  com.baomidou.mybatisplus.core.toolkit.support.SFunction<RelationEntity,LeftId> getLeftIdRelationFunction,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  java.util.function.Function<RelationEntity,RightId> getRightIdRelationFunction,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  RightService rightService,
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  com.baomidou.mybatisplus.core.toolkit.support.SFunction<RightEntity,?> getRightIdFunction)

多对多查询

通过用户查询对应的角色列表 user - roleList user1 - role1 - role2 - role3

user [user主键] user_role [user主键,role主键] role [role主键]

类型参数:

LeftId - 业务id类型

RightId - 业务关系的id类型

LeftService - 业务service类型

LeftMapper - 业务mapper类型

LeftEntity - 业务对象类型

RelationService - 业务关系service类型

RelationMapper - 业务关系mapper类型

RelationEntity - 业务关系对象类型

RightService - 业务关系service类型

RightMapper - 业务关系mapper类型

RightEntity - 业务关系对象类型

参数:

leftId - 业务id

leftService - 业务service

getLeftIdFunction - 获取业务对象主键

relationService - 业务关系对象service

getLeftIdRelationFunction - 获取业务id的接口

getRightIdRelationFunction - 获取关系对象id的接口

rightService - 获取关系service

getRightIdFunction - 获取业务关系对象id

返回:

业务id对应的业务关系对象集合