text: #include <stdexcept>
  #include "workflow/Vertex.h"
  
  
  unsigned int IDENTIFIER = 0;
  
  workflow::Vertex::Vertex(const std::string &name) :
      identifier(IDENTIFIER),
      name(name)
  {
      IDENTIFIER += 1;
  }
  
  bool workflow::Vertex::operator==(const workflow::Vertex &that) const {
      return this->identifier == that.identifier;
  }
  