AutoObject.hpp

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// ANNA - Anna is Not Nothingness Anymore                                                         //
//                                                                                                //
// (c) Copyright 2005-2015 Eduardo Ramos Testillano & Francisco Ruiz Rayo                         //
//                                                                                                //
// See project site at http://redmine.teslayout.com/projects/anna-suite                           //
// See accompanying file LICENSE or copy at http://www.teslayout.com/projects/public/anna.LICENSE //


#ifndef anna_dbos_AutoObject_hpp
#define anna_dbos_AutoObject_hpp

#include <anna/dbos/Object.hpp>

namespace anna {

namespace dbos {


template <typename T> class AutoObject {
public:
  explicit AutoObject(T* t) : a_t(t) {;}

  AutoObject() : a_t(NULL) {;}

  ~AutoObject() { if(a_t != NULL) T::release(a_t); }

  T* operator -> () const { return a_t; }

  T* operator = (T* t) {
    if(a_t != t) {
      T::release(a_t);
      a_t = t;
    }

    return a_t;
  }

  T* operator = (const AutoObject <T>& other) noexcept(false) {
    return (this != &other)  ? (*this = T::duplicate(other.a_t)) : a_t;
  }

  operator T*() const { return a_t; }

private:
  T* a_t;
};


}
}



#endif