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Package pypat :: Package behavioral :: Module chain :: Class ChainLink
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Class ChainLink

source code


Abstract ChainLink object as part of the Chain of Responsibility pattern.

- External Usage documentation: U{https://github.com/tylerlaberge/PyPatterns/wiki/Behavioral-Pattern-Usage}
- External Chain of Responsibility Pattern documentation: U{https://en.wikipedia.org/wiki/Chain-of-responsibility_pattern}
Instance Methods [hide private]
 
__init__(self)
Initialize a new ChainLink instance.		 source code
 
set_successor(self, successor)
Set a chain link to call if this chain link fails.		 source code
 
successor_handle(self, request)
Have this chain links successor handle a request.		 source code
 
handle(self, request)
Handle a request.		 source code
Method Details [hide private]

set_successor(self, successor)

source code 

Set a chain link to call if this chain link fails.

Parameters:
  • successor (ChainLink) - The chain link to call if this chain link fails.

successor_handle(self, request)

source code 

Have this chain links successor handle a request.

Parameters:
  • request - The request to handle.

handle(self, request)

source code 

Handle a request.

Parameters:
  • request - The request to handle.
Decorators:
  • @abstractmethod

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