getMany method
Bulk fetch — returns the values for every key in keys that
is currently present. Keys that are absent are NOT included
in the returned map.
Implementation
@override
Future<Map<String, AtData>> getMany(List<String> keys) async {
if (keys.isEmpty) return {};
final normalized = keys.map(_normalize).toList();
final placeholders = List.filled(normalized.length, '?').join(',');
final rows = _db.raw.select(
'SELECT atkey, value, metadata FROM at_data WHERE atkey IN ($placeholders);',
normalized);
final result = <String, AtData>{};
for (final row in rows) {
final atkey = row['atkey'] as String;
result[atkey] = _atDataFromRow(row, atkey);
}
return result;
}