Interpreter of design patterns (interpreter)

Interpreter Definition:
Define the grammar of the language and create an interpreter to interpret the sentences in that language.

Interpreter seems to use the surface is not very wide, it describes how a language interpreter is constituted, in practical applications, we may rarely construct a language grammar. Let's just take a quick look:

The first thing to do is to create an interface to describe the common operation.

 Public Interface  void  interpret (context context);

And look at some of the global information that contains the interpreter.

 Public Interface Context {}

The specific implementation of abstractexpression is divided into two types: Terminator expressions and non-terminator expressions:

 Public class Implements  publicvoid  interpret (context context) {}}

For no rule in grammar, non-terminator expressions are required:

 public  class  nonterminalexpression Span style= "COLOR: #0000ff" >implements   abstractexpression { private   abstractexpression successor;  public  void   Setsuccessor (Abstractexpression successor) { thi 　　 S . Successor = successor;  public   Abstractexpression Getsuccessor ( 　　 { return   successor;  public  void   interpret (context context) {}}  

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Interpreter of design patterns (interpreter) (RPM)