IGraphVisitor.h

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#ifndef IGRAPHVISITOR_H_
#define IGRAPHVISITOR_H_

namespace concurrency
{

  class DecisionNode;
  class AlgorithmNode;
  class DataNode;
  class ConditionNode;

  class IGraphVisitor
  {
  public:
    virtual ~IGraphVisitor() = default;

    virtual bool visitEnter( DecisionNode& ) const { return true; };
    virtual bool visit( DecisionNode& ) { return true; };

    virtual bool visitEnter( AlgorithmNode& ) const { return true; };
    virtual bool visit( AlgorithmNode& ) { return true; };

    virtual bool visitEnter( DataNode& ) const { return true; };
    virtual bool visit( DataNode& ) { return true; };

    virtual bool visitEnter( ConditionNode& ) const { return true; };
    virtual bool visit( ConditionNode& ) { return true; };

    virtual void reset(){};
  };
}

#endif /* IGRAPHVISITOR_H_ */