00001
00002
00003 #include "clssdf.h"
00004
00005 namespace class_def {
00006
00007 void class_definition::print_exists( std::ostream& os) const {
00008 std::vector<key_attribute>::const_iterator pa = _key_attributes.begin();
00009
00010 os << "int " << _name << "::exists() const {" << std::endl;
00011 os << " init_static_attributes();" << std::endl << std::endl;
00012
00013 os << " EXEC SQL SELECT COUNT(*) " << std::endl;
00014 os << " INTO :Num" << std::endl;
00015 os << " FROM " << _name << std::endl;
00016 os << " WHERE" << std::endl;
00017
00018 for (pa=_key_attributes.begin();;) {
00019 os << " " << pa->get_name() << "=:" << pa->get_Name();
00020 pa++;
00021 if (pa==_key_attributes.end()) {
00022 os << ";" << std::endl;
00023 break;
00024 }
00025 os << " AND" << std::endl;
00026 }
00027 os << std::endl;
00028 os << " _sql_err();" << std::endl << std::endl;
00029
00030 os << " return (int)Num;" << std::endl;
00031 os << "}" << std::endl << std::endl;
00032 }
00033 }
