Package io.mybatis.mapper

Interface Mapper<T,I extends Serializable>

Type Parameters:

T - 实体类类型

I - 主键类型

All Superinterfaces:

BaseMapper<T,I>, CursorMapper<T,Example<T>>, io.mybatis.provider.EntityInfoMapper<T>, EntityMapper<T,I>, ExampleMapper<T,Example<T>>

public interface Mapper<T,I extends Serializable>
extends BaseMapper<T,I>

自定义 Mapper 示例，这个 Mapper 基于主键自增重写了 insert 方法，主要用作示例

当你使用 Oracle 或其他数据库时，insert 重写时也可以使用 @SelectKey 注解对主键进行定制

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	Description
int	insert(T entity)	保存实体，默认主键自增，并且名称为 id
int	insertSelective(T entity)	保存实体中不为空的字段，默认主键自增，并且名称为 id

Methods inherited from interface io.mybatis.mapper.BaseMapper

deleteByFieldList, selectByFieldList, updateByPrimaryKeySelectiveWithForceFields, wrapper

Methods inherited from interface io.mybatis.mapper.cursor.CursorMapper

selectCursor, selectCursorByExample

Methods inherited from interface io.mybatis.provider.EntityInfoMapper

entityClass, entityTable

Methods inherited from interface io.mybatis.mapper.base.EntityMapper

delete, deleteByPrimaryKey, selectByPrimaryKey, selectCount, selectList, selectOne, updateByPrimaryKey, updateByPrimaryKeySelective

Methods inherited from interface io.mybatis.mapper.example.ExampleMapper

countByExample, deleteByExample, example, selectByExample, selectByExample, selectOneByExample, updateByExample, updateByExampleSelective, updateByExampleSetValues

Method Detail

insert

@Lang(io.mybatis.provider.Caching.class)
@Options(useGeneratedKeys=true,
         keyProperty="id")
@InsertProvider(type=EntityProvider.class,
                method="insert")
int insert(T entity)

保存实体，默认主键自增，并且名称为 id

这个方法是个示例，你可以在自己的接口中使用相同的方式覆盖父接口中的配置

Specified by:

insert in interface EntityMapper<T,I extends Serializable>

Parameters:

entity - 实体类

Returns:

1成功，0失败

insertSelective

@Lang(io.mybatis.provider.Caching.class)
@Options(useGeneratedKeys=true,
         keyProperty="id")
@InsertProvider(type=EntityProvider.class,
                method="insertSelective")
int insertSelective(T entity)

保存实体中不为空的字段，默认主键自增，并且名称为 id

这个方法是个示例，你可以在自己的接口中使用相同的方式覆盖父接口中的配置

Specified by:

insertSelective in interface EntityMapper<T,I extends Serializable>

Parameters:

entity - 实体类

Returns:

1成功，0失败