#include <kcpolydb.h>
using namespace std;
using namespace kyotocabinet;
// main routine
int main(int argc, char** argv) {
// create the database object
PolyDB db;
// open the database
if (!db.open("casket.kch", PolyDB::OREADER)) {
cerr << "open error: " << db.error().name() << endl;
}
// define the visitor
class VisitorImpl : public DB::Visitor {
// call back function for an existing record
const char* visit_full(const char* kbuf, size_t ksiz,
const char* vbuf, size_t vsiz, size_t *sp) {
cout << string(kbuf, ksiz) << ":" << string(vbuf, vsiz) << endl;
return NOP;
}
// call back function for an empty record space
const char* visit_empty(const char* kbuf, size_t ksiz, size_t *sp) {
cerr << string(kbuf, ksiz) << " is missing" << endl;
return NOP;
}
} visitor;
// retrieve a record with visitor
if (!db.accept("foo", 3, &visitor, false) ||
!db.accept("dummy", 5, &visitor, false)) {
cerr << "accept error: " << db.error().name() << endl;
}
// traverse records with visitor
if (!db.iterate(&visitor, false)) {
cerr << "iterate error: " << db.error().name() << endl;
}
// close the database
if (!db.close()) {
cerr << "close error: " << db.error().name() << endl;
}
return 0;
}