@startuml
hide footbox
participant  "XMLMapperBuilder" as  x
participant  "MapperBuilderAssistant" as  m
participant  "Resources" as  r
participant  "Configuration" as  c

[-> x : bindMapperForNamespace()\n绑定Mapper和命名空间的关系,这里的mapper代指DAO操作接口
activate x
x -> m ++:getCurrentNamespace() 获取命名空间
return 当前配置的命名空间
opt 已配置命名空间
x -> r++: classForName() \n 加载mapper文件对应的Mapper接口类型定义
return Mapper接口类型定义
opt 能够根据命名空间找到Mapper接口类型定义
x -> c++ :hasMapper() 判断当前是否已加载该Mapper
return 是否加载了该Mapper
opt 未加载Mapper
x-> c++: addLoadedResource() \n 注册已加载过的资源集合 ，添加namespace:前缀，防止重复加载
return
x->c++:addMapper() \n 注册Mapper接口
end
end
end
[<- x : 完成一个mapper文件的解析
@enduml