Calling a Stored Procedure in Hibernate

Question

I just started learning hibernate last night and its rather fun. I am some trouble calling a stored procedure as a sql-query with hibernate. I have attached the source and t

Answer 1

According to the documentation, the procedure must return a result set and should be called like this:

{ ? = call procedureName(<parameters>) }

So try the following instead:

<sql-query name="getRecordsSP" callable="true" >
  <return class="Example">
    <return-property name="user_id" column="user_id"></return-property>
    <return-property name="user_data" column="user_data"></return-property>
  </return>
  { ? = call getRecords }
</sql-query>

References

• Hibernate Core Reference Guide
  • 16.2.2. Using stored procedures for querying

Answer 2

import java.sql.CallableStatement;
import java.sql.ResultSet;
import java.util.Iterator;
import java.util.List;

import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;



public class SelectPP {


    public static void main(String[] args) {

        Session session = null;
        //String query = "select example.id, example.data from Example example";
        CallableStatement callableStatement = null;
        ResultSet resultSet = null;

        try{

            SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();
            session = sessionFactory.openSession();

            System.out.println("selecting records");
    //      Query q = session.getNamedQuery("getRecordsSP");
    //      Query q =  session.createSQLQuery("call getRecords","",Example.class);
    //      Query q = session.getNamedQuery("getRecordsSP");

            callableStatement = session.connection().prepareCall("{call getRecords}");
            callableStatement.execute();

            resultSet = callableStatement.getResultSet();

            while(resultSet.next()){
                System.out.println(resultSet.getInt(1));
                System.out.println(resultSet.getString(2));
            }

            //resultSet.

            System.out.print("Done");
            //List l = q.list();


        //  for(Iterator it = l.iterator() ;it.hasNext();){
        //      Object row [] = (Object []) it.next();

        //      Example row = (Example) it.next();
        //      System.out.println(row.getUser_id());
        //      System.out.println(row.getUser_data());
        //      System.out.println(row.length);
        //      System.out.println("ID " + row[0]);
        //  System.out.println("Data "+ row[1]);

        }
        catch (Exception e) {
            e.printStackTrace();
        }
        finally{
            session.flush();
            session.close();
        }
    }
}

I basically redesign the input without using hibernate getNamedQuery, but the java.sql class and it worked!!!