xin.altitude.common.service.impl

Class MapServiceImpl<M extends com.baomidou.mybatisplus.core.mapper.BaseMapper<T>,T extends com.baomidou.mybatisplus.extension.activerecord.Model<T>>

java.lang.Object

com.baomidou.mybatisplus.extension.service.impl.ServiceImpl<M,T>

xin.altitude.common.service.impl.MapServiceImpl<M,T>

All Implemented Interfaces:

com.baomidou.mybatisplus.extension.service.IService<T>

public class MapServiceImpl<M extends com.baomidou.mybatisplus.core.mapper.BaseMapper<T>,T extends com.baomidou.mybatisplus.extension.activerecord.Model<T>>
extends com.baomidou.mybatisplus.extension.service.impl.ServiceImpl<M,T>

集合转Map

Since:

2021/11/29 17:57

Author:

explore

Field Summary

Fields inherited from class com.baomidou.mybatisplus.extension.service.impl.ServiceImpl

baseMapper, entityClass, log, mapperClass

Fields inherited from interface com.baomidou.mybatisplus.extension.service.IService

DEFAULT_BATCH_SIZE

Constructor Summary

Constructors

Constructor and Description
MapServiceImpl()

Method Summary

Modifier and Type	Method and Description
Map<Serializable,T>	map() 查询集合转化为Map
Map<Serializable,T>	map(com.baomidou.mybatisplus.core.conditions.Wrapper<T> queryWrapper) 查询集合转化为Map 默认使用主键作为key的转换规则 集合元素实体作为转换规则
<K,V> Map<K,V>	map(com.baomidou.mybatisplus.core.conditions.Wrapper<T> queryWrapper, Function<? super T,? extends K> key, Function<? super T,? extends V> value) 查询集合转化为Map
<V> Map<Serializable,V>	map(com.baomidou.mybatisplus.core.conditions.Wrapper<T> queryWrapper, Function<? super T,? extends V> value) 查询集合转化为Map
Map<Serializable,T>	mapByIds(Collection<? extends Serializable> idList) 查询集合转化为Map
<K,V> Map<K,V>	mapByIds(Collection<? extends Serializable> idList, Function<? super T,? extends K> key, Function<? super T,? extends V> value) 查询集合转化为Map，支持自定义Value类型
<V> Map<Serializable,V>	mapByIds(Collection<? extends Serializable> idList, Function<? super T,? extends V> value) 查询集合转化为Map，支持自定义Value类型 默认使用表的主键作为Key

Methods inherited from class com.baomidou.mybatisplus.extension.service.impl.ServiceImpl

closeSqlSession, currentMapperClass, currentModelClass, executeBatch, executeBatch, executeBatch, getBaseMapper, getEntityClass, getMap, getObj, getOne, getSqlStatement, retBool, saveBatch, saveOrUpdate, saveOrUpdateBatch, sqlSessionBatch, sqlStatement, updateBatchById

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.baomidou.mybatisplus.extension.service.IService

count, count, getById, getOne, ktQuery, ktUpdate, lambdaQuery, lambdaUpdate, list, list, listByIds, listByMap, listMaps, listMaps, listObjs, listObjs, listObjs, listObjs, page, page, pageMaps, pageMaps, query, remove, removeById, removeById, removeByIds, removeByMap, save, saveBatch, saveOrUpdate, saveOrUpdateBatch, update, update, update, updateBatchById, updateById

Constructor Detail

MapServiceImpl

public MapServiceImpl()

Method Detail

mapByIds

public Map<Serializable,T> mapByIds(Collection<? extends Serializable> idList)

查询集合转化为Map

Parameters:

idList - 主键ID集合

Returns:

转换后Map实例

mapByIds

public <V> Map<Serializable,V> mapByIds(Collection<? extends Serializable> idList,
                                        Function<? super T,? extends V> value)

查询集合转化为Map，支持自定义Value类型 默认使用表的主键作为Key

Type Parameters:

V - 转换实体泛型

Parameters:

idList - 主键ID集合

value - 转换规则

Returns:

转换后Map实例

mapByIds

public <K,V> Map<K,V> mapByIds(Collection<? extends Serializable> idList,
                               Function<? super T,? extends K> key,
                               Function<? super T,? extends V> value)

查询集合转化为Map，支持自定义Value类型

Type Parameters:

V - 转换实体泛型

Parameters:

idList - 主键ID集合

key - key转换规则

value - value转换规则

Returns:

转换后Map实例

map

public Map<Serializable,T> map(com.baomidou.mybatisplus.core.conditions.Wrapper<T> queryWrapper)

查询集合转化为Map 默认使用主键作为key的转换规则 集合元素实体作为转换规则

Parameters:

queryWrapper - 查询条件

Returns:

转换后Map实例

map

public <V> Map<Serializable,V> map(com.baomidou.mybatisplus.core.conditions.Wrapper<T> queryWrapper,
                                   Function<? super T,? extends V> value)

查询集合转化为Map

Type Parameters:

V - 转换实体泛型

Parameters:

queryWrapper - 查询条件

value - 转换规则

Returns:

转换后Map实例

map

public <K,V> Map<K,V> map(com.baomidou.mybatisplus.core.conditions.Wrapper<T> queryWrapper,
                          Function<? super T,? extends K> key,
                          Function<? super T,? extends V> value)

查询集合转化为Map

Type Parameters:

V - 转换实体泛型

Parameters:

queryWrapper - 查询条件

key - key转换规则

value - value转换规则

Returns:

转换后Map实例

map

public Map<Serializable,T> map()

查询集合转化为Map

Returns:

转换后Map实例