AssnsBase.h

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#ifndef canvas_Persistency_Common_AssnsBase_h
#define canvas_Persistency_Common_AssnsBase_h
// vim: set sw=2:

namespace art {
  namespace detail {

    // The following base class is provided so that the ROOT I/O
    // system can appropriately handle transient data without having
    // to use a template, which would introduce more coupling of Assns
    // with ROOT than is desired.
    class AssnsBase {
    public:
      virtual ~AssnsBase() noexcept = default;
      virtual void fill_transients() = 0;
      virtual void fill_from_transients() = 0;
    };
  }
}
#endif /* canvas_Persistency_Common_AssnsBase_h */

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