1.1.2. Proxy Structure
From the book:
The standard GoF structure is shown below in Figure 1. The
Client uses the
Subject, which can either be a
RealSubject or a
Client does not know which, nor care. In the standard GoF structure, the
Proxy points to a
RealSubject. A variation of the proxy structure is to let the
Proxy point to a
Subject. This allows us to cascade proxies. We will examine cascading proxies in more detail at the end of the next chapter.
Figure 1. Structure of the proxy design pattern.