Without annotation , element signatures typically ignore non - core dimensions completely 没有注释,元素签名通常会完全忽略非核心维。
Instead of having conventional one - dimensional interfaces expressing only the core dimension , you get multiple interfaces - one for each concern in the application 与只表示核心维的常规一维接口不同,注释可以有多个接口应用程序中的每一个关注点有一个。