io.mybatis.mapper.base

Interface EntityMapper<T,I>

Type Parameters:

T - 实体类类型

I - 主键类型

All Superinterfaces:

io.mybatis.provider.EntityInfoMapper<T>

All Known Subinterfaces:

BaseMapper<T,I>, Mapper<T,I>

public interface EntityMapper<T,I>
extends io.mybatis.provider.EntityInfoMapper<T>

实体类基本方法

Author:

liuzh

Nested Class Summary

Nested classes/interfaces inherited from interface io.mybatis.provider.EntityInfoMapper

io.mybatis.provider.EntityInfoMapper.CachingEntityClass

Method Summary

Modifier and Type	Method and Description
int	delete(T entity) 保存实体信息批量删除
int	deleteByPrimaryKey(I id) 根据主键删除
int	insert(T entity) 保存实体
int	insertSelective(T entity) 保存实体中不为空的字段
Optional<T>	selectByPrimaryKey(I id) 根据主键查询实体
long	selectCount(T entity) 根据实体字段条件查询总数
List<T>	selectList(T entity) 根据实体字段条件批量查询
Optional<T>	selectOne(T entity) 根据实体字段条件查询唯一的实体
int	updateByPrimaryKey(T entity) 根据主键更新实体
int	updateByPrimaryKeySelective(T entity) 根据主键更新实体中不为空的字段

Methods inherited from interface io.mybatis.provider.EntityInfoMapper

entityClass, entityTable

Method Detail

insert

@Lang(value=io.mybatis.provider.Caching.class)
 @InsertProvider(type=EntityProvider.class,
                method="insert")
int insert(T entity)

保存实体

Parameters:

entity - 实体类

Returns:

1成功，0失败

insertSelective

@Lang(value=io.mybatis.provider.Caching.class)
 @InsertProvider(type=EntityProvider.class,
                method="insertSelective")
int insertSelective(T entity)

保存实体中不为空的字段

Parameters:

entity - 实体类

Returns:

1成功，0失败

deleteByPrimaryKey

@Lang(value=io.mybatis.provider.Caching.class)
 @DeleteProvider(type=EntityProvider.class,
                method="deleteByPrimaryKey")
int deleteByPrimaryKey(I id)

根据主键删除

Parameters:

id - 主键

Returns:

1成功，0失败

delete

@Lang(value=io.mybatis.provider.Caching.class)
 @DeleteProvider(type=EntityProvider.class,
                method="delete")
int delete(T entity)

保存实体信息批量删除

Parameters:

entity - 实体类

Returns:

大于等于1成功，0失败

updateByPrimaryKey

@Lang(value=io.mybatis.provider.Caching.class)
 @UpdateProvider(type=EntityProvider.class,
                method="updateByPrimaryKey")
int updateByPrimaryKey(T entity)

根据主键更新实体

Parameters:

entity - 实体类

Returns:

1成功，0失败

updateByPrimaryKeySelective

@Lang(value=io.mybatis.provider.Caching.class)
 @UpdateProvider(type=EntityProvider.class,
                method="updateByPrimaryKeySelective")
int updateByPrimaryKeySelective(T entity)

根据主键更新实体中不为空的字段

Parameters:

entity - 实体类

Returns:

1成功，0失败

selectByPrimaryKey

@Lang(value=io.mybatis.provider.Caching.class)
 @SelectProvider(type=EntityProvider.class,
                method="selectByPrimaryKey")
Optional<T> selectByPrimaryKey(I id)

根据主键查询实体

Parameters:

id - 主键

Returns:

实体

selectOne

@Lang(value=io.mybatis.provider.Caching.class)
 @SelectProvider(type=EntityProvider.class,
                method="select")
Optional<T> selectOne(T entity)

根据实体字段条件查询唯一的实体

Parameters:

entity - 实体类

Returns:

单个实体，查询结果由多条时报错

selectList

@Lang(value=io.mybatis.provider.Caching.class)
 @SelectProvider(type=EntityProvider.class,
                method="select")
List<T> selectList(T entity)

根据实体字段条件批量查询

Parameters:

entity - 实体类

Returns:

实体列表

selectCount

@Lang(value=io.mybatis.provider.Caching.class)
 @SelectProvider(type=EntityProvider.class,
                method="selectCount")
long selectCount(T entity)

根据实体字段条件查询总数

Parameters:

entity - 实体类

Returns:

总数