HistoGetter.hpp

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#ifndef CAFE_HISTOGETTER_HPP_
#define CAFE_HISTOGETTER_HPP_

#include <string>
#include "cafe/Variables.hpp"

class TObject;
class TTree;

namespace cafe {

    class HistoGetter {
    public:
        HistoGetter(const cafe::Variables& vars);
        virtual ~HistoGetter();
        virtual float get(TObject *obj) = 0;

        static void parse(const std::string& expression, std::string& branch, std::string& method);
        static HistoGetter *create(TTree *tree, const std::string& branch, const std::string& method);

        const cafe::Variables& vars() const;

    private:
        const cafe::Variables _vars;
    };

}

#endif // CAFE_HISTOGETTER_HPP_

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