// file : common/inheritance/polymorphism/test9.hxx // license : GNU GPL v2; see accompanying LICENSE file #ifndef TEST9_HXX #define TEST9_HXX #include <string> #include <vector> #include <typeinfo> #include <odb/core.hxx> // Test polymorphism and readonly classes. // #pragma db namespace table("t9_") namespace test9 { // // ro_root, rw_base, ro_derived // #pragma db object polymorphic readonly struct ro_root { virtual ~ro_root () {} ro_root () {} ro_root (unsigned long i, unsigned long n): id (i), num (n) {} #pragma db id unsigned long id; unsigned long num; std::vector<std::string> strs; virtual bool compare (const ro_root& r, bool tc = true) const { if (tc && typeid (r) != typeid (ro_root)) return false; return id == r.id && num == r.num && strs == r.strs; } }; inline bool operator== (const ro_root& x, const ro_root& y) {return x.compare (y);} #pragma db object struct rw_base: ro_root { rw_base () {} rw_base (unsigned long i, unsigned long n, const std::string& s) : ro_root (i, n), str (s) {} std::string str; std::vector<unsigned long> nums; virtual bool compare (const ro_root& r, bool tc = true) const { if (tc && typeid (r) != typeid (rw_base)) return false; const rw_base& b (static_cast<const rw_base&> (r)); return ro_root::compare (r, false) && str == b.str && nums == b.nums; } }; #pragma db object readonly struct ro_derived: rw_base { ro_derived () {} ro_derived (unsigned long i, unsigned long n, const std::string& s) : rw_base (i, n, s), dnum (n + 1), dstr (s + 'd') {} unsigned long dnum; std::string dstr; virtual bool compare (const ro_root& r, bool tc = true) const { if (tc && typeid (r) != typeid (ro_derived)) return false; const ro_derived& d (static_cast<const ro_derived&> (r)); return rw_base::compare (r, false) && dnum == d.dnum && dstr == d.dstr; } }; // // rw_root, ro_base, rw_derived // #pragma db object polymorphic struct rw_root { virtual ~rw_root () {} rw_root () {} rw_root (unsigned long i, unsigned long n): id (i), num (n) {} #pragma db id unsigned long id; unsigned long num; std::vector<std::string> strs; virtual bool compare (const rw_root& r, bool tc = true) const { if (tc && typeid (r) != typeid (rw_root)) return false; return id == r.id && num == r.num && strs == r.strs; } }; inline bool operator== (const rw_root& x, const rw_root& y) {return x.compare (y);} #pragma db object readonly struct ro_base: rw_root { ro_base () {} ro_base (unsigned long i, unsigned long n, const std::string& s) : rw_root (i, n), str (s) {} std::string str; std::vector<unsigned long> nums; virtual bool compare (const rw_root& r, bool tc = true) const { if (tc && typeid (r) != typeid (ro_base)) return false; const ro_base& b (static_cast<const ro_base&> (r)); return rw_root::compare (r, false) && str == b.str && nums == b.nums; } }; #pragma db object struct rw_derived: ro_base { rw_derived () {} rw_derived (unsigned long i, unsigned long n, const std::string& s) : ro_base (i, n, s), dnum (n + 1), dstr (s + 'd') {} unsigned long dnum; std::string dstr; virtual bool compare (const rw_root& r, bool tc = true) const { if (tc && typeid (r) != typeid (rw_derived)) return false; const rw_derived& d (static_cast<const rw_derived&> (r)); return ro_base::compare (r, false) && dnum == d.dnum && dstr == d.dstr; } }; } #endif // TEST9_HXX