map method
Implementation
@override
Tuple<Ta, Tb> map(List<QueryResult> results) {
final mainResult = main.map(results);
if (mainResult == null) {
throw PersistenceException.internal(
'MainResult of TupleJoinQuerySource is null.');
}
final resultB = joinB.bean.map(results);
if (innerJoin && resultB == null) {
throw PersistenceException.internal(
'ResultB of TupleJoinQuerySource is null but innerJoin == true.');
}
return Tuple(mainResult, resultB as Tb);
}