Examples of Adapter mode in Python Design Mode Programming, pythonadapter

Examples of Adapter mode in Python Design Mode Programming, pythonadapter

Converts an interface of a class to another interface that the customer wants. So that those classes that cannot work together due to interface incompatibility can work together.
Application Scenario: You want to reuse some existing classes, but the interfaces are inconsistent with the requirements of the Reuse Environment.

Mode features: converts an interface of a class into another interface that the customer wants.

Category: Class adapter (inherited by multiple methods) and Object Adapter.

In the following example, the user uses a class method through the adapter.

class Target: def Request():  print "common request."class Adaptee(Target): def SpecificRequest(self):  print "specific request."class Adapter(Target): def __init__(self,ada):  self.adaptee = ada def Request(self):  self.adaptee.SpecificRequest()if __name__ == "__main__": adaptee = Adaptee() adapter = Adapter(adaptee) adapter.Request()

Class diagram:

Instance:
Let's take a look at a simple Adapter example.

# Encoding = UTF-8 ## by panda # adapter mode def printInfo (info): print unicode (info, 'utf-8 '). encode ('gbk') # Player class Player (): name = ''def _ init _ (self, name): self. name = name def Attack (self, name): pass def Defense (self): pass # Forward class Forwards (Player): def _ init _ (self, name ): player. _ init _ (self, name) def Attack (self): printInfo ("Forward % s Attack" % self. name) def Defense (self, name): printInfo ("Forward % s Defense" % self. name) # Center (target class) class Center (Player): def _ init _ (self, name): Player. _ init _ (self, name) def Attack (self): printInfo ("center % s Attack" % self. name) def Defense (self): printInfo ("center % s Defense" % self. name) # guard class Guards (Player): def _ init _ (self, name): Player. _ init _ (self, name) def Attack (self): printInfo ("Defender % s Attack" % self. name) def Defense (self): printInfo ("Defender % s Defense" % self. name) # foreign Center (to be adapted) # center class ForeignCenter (Player): name = ''def _ init _ (self, name): Player. _ init _ (self, name) def ForeignAttack (self): printInfo ("Foreign center % s attack" % self. name) def ForeignDefense (self): printInfo ("Foreign center % s defense" % self. name) # Translation (adaptation class) class Translator (Player): foreignCenter = None def _ init _ (self, name): self. foreignCenter = ForeignCenter (name) def Attack (self): self. foreignCenter. foreignAttack () def Defense (self): self. foreignCenter. foreignDefense () def clientUI (): B = Forwards ('battier ') m = Guards ('mcged') ym = Translator ('yaking') B. attack () m. defense () ym. attack () ym. defense () return if _ name _ = '_ main _': clientUI ();

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