In the simplest case, the resource adapter is therefore able to cast the MessageEndpoint to the necessary interface and then invoke the desired method.

在最简单的情况下，资源适配器就可以把MessageEndpoint的类型转换成必要的接口，然后调用预期方法。

youdao

Rather than have friends gather around your tiny iPhone display or force a person to awkwardly reach across you and tap on your handset, this concept lets anyone simply cast shadows to control the interface.

ENGADGET: Hands-on with AT&T Labs prototypes: ShadowPuppets and haptic steering wheel