CreateNativeQuery and Non entity class

Question

just want to find out:
a signature of the createNativeQuery() method is
Query createNativeQuery(String sqlString, Class resultClass) My question is can the resultClass be a non entity?
Regards,
Michael

Answer 1

I tried this method of getting a transfer object from my SqlResultSetMapping. The compilation and deployment works very fine but during runtime, I get null as values for every index of my array while the getResultList() returns a list of size 1.
Query query = entityManager.createNativeQuery(SQL_REPORT_AGG_STM_ON_LN_BAL, "LoanCapitalization.reportMapping");
        AggregateStatementLoanBalanceReportData data = null;
        List<AggregateStatementLoanBalanceReportData> returnList = new ArrayList<AggregateStatementLoanBalanceReportData>();
        query.setParameter(1, reportCriteria.getFromDate());
        query.setParameter(2, reportCriteria.getToDate());
        List<Object[]> resultList = query.getResultList();
        System.out.println("resultList.size() >>>>>>>>>> " + resultList.size());
        for (Object[] obj : resultList){
            data = new AggregateStatementLoanBalanceReportData();
            System.out.println("(String)obj[1] >>>>>>>>>> " + (String)obj[1]);
            System.out.println("(String)obj[2] >>>>>>>>>> " + (String)obj[2]);
            System.out.println("(String)obj[3] >>>>>>>>>> " + (String)obj[3]);
            System.out.println("(String)obj[4] >>>>>>>>>> " + (String)obj[4]);
            System.out.println("(String)obj[5] >>>>>>>>>> " + (String)obj[5]);
            System.out.println("(String)obj[6] >>>>>>>>>> " + (String)obj[6]);
            data.setPolicyNumber((String)obj[0]);
            data.setName((String)obj[1]);
            BigDecimal loanPrincipal = new BigDecimal(Double.parseDouble((String)obj[2]));
            data.setLoanPrincipal(loanPrincipal);
            BigDecimal outstandingLoan = new BigDecimal(Double.parseDouble((String)obj[3]));
            data.setOutstandingLoan(outstandingLoan);
            BigDecimal interest = new BigDecimal(Double.parseDouble((String)obj[4]));
            data.setInterest(interest);
            BigDecimal totalOutstanding = outstandingLoan.add(interest);
            data.setTotalOutstanding(totalOutstanding);
            BigDecimal amountPaid = new BigDecimal(Double.parseDouble((String)obj[5]));
            data.setAmountPaid(amountPaid);
            BigDecimal amountLeft = totalOutstanding.subtract(amountPaid);
            data.setAmountLeft(amountLeft);
            System.out.println("the date is " + obj[6]);
            //data.setLastCapitalizationDate(obj[6]);
            data.setFromDate(reportCriteria.getFromDate());
            data.setToDate(reportCriteria.getToDate());
            returnList.add(data);
        }the size prints 1
but other printline print null
what could be wrong with this