Joeppie/Backproject/ContextOperation_8h_source.html

 #ifndef BACKPROJECT_CONTEXTOPERATION_H
 #define BACKPROJECT_CONTEXTOPERATION_H

 #include "ContextOperation.h"
 #include "../Context.h"


 //The code below adopts the pattern in the accepted answer of the following Stackoverflow:
 //https://stackoverflow.com/questions/10332725/how-to-automatically-register-a-class-on-creation


 class Context;

 class ContextOperation
 {

 public:
     virtual bool IsPossible(const Context &context) const =0;

     virtual std::string getDescription() const =0;

     virtual std::string Perform(Context &context) const =0;

 };


 #endif //BACKPROJECT_CONTEXTOPERATION_H
ContextOperation
Represents an operation that can be performed based on the &#39;Context&#39; (This is an abstract class...
Definition: ContextOperation.h:19

Context
A context; keeps track of overal program state in a way that is easily accessed by multiple functions...
Definition: Context.h:19

ContextOperation::Perform
virtual std::string Perform(Context &context) const =0
Performs the operation on the context.

ContextOperation::IsPossible
virtual bool IsPossible(const Context &context) const =0
Indicates whether the operation can be performed given the current state of affairs.

ContextOperation::getDescription
virtual std::string getDescription() const =0
Gives a short (infinitive verb) indication of what the operation does.