visitor.h

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#pragma once
 
#include "forward_type.h"
 
namespace hgps::core {
 
class DataTableColumnVisitor {
  public:
    DataTableColumnVisitor() = default;
 
    DataTableColumnVisitor(const DataTableColumnVisitor &) = delete;
    DataTableColumnVisitor &operator=(const DataTableColumnVisitor &) = delete;
 
    DataTableColumnVisitor(DataTableColumnVisitor &&) = delete;
    DataTableColumnVisitor &operator=(DataTableColumnVisitor &&) = delete;
 
    virtual ~DataTableColumnVisitor(){};
 
    virtual void visit(const StringDataTableColumn &column) = 0;
 
    virtual void visit(const FloatDataTableColumn &column) = 0;
 
    virtual void visit(const DoubleDataTableColumn &column) = 0;
 
    virtual void visit(const IntegerDataTableColumn &column) = 0;
};
} // namespace hgps::core