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 Hibernate > Hibernate Query Language > List Result Transformer

List Result Transformer 

The following example shows how to use list result transformer. Refer first example for the configuration and mapping.

File Name  :  
com/bethecoder/tutorials/hibernate/basic/tests/HQLTransformListTest.java 
Author  :  Sudhakar KV
Email  :  kvenkatasudhakar@gmail.com
   
package com.bethecoder.tutorials.hibernate.basic.tests;

import java.util.List;

import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.transform.Transformers;
import com.bethecoder.tutorials.hibernate.basic.util.HibernateUtil;

public class HQLTransformListTest {

  /**
   @param args
   */
  public static void main(String[] args) {

    Session session = HibernateUtil.getSessionFactory().openSession();
    session.beginTransaction();
    
    String HQL_QUERY = "select comp.id, comp.name from Company comp";
    Query query = session.createQuery(HQL_QUERY);
    query.setResultTransformer(Transformers.TO_LIST);
    
    List<?> rows = query.list();    
    System.out.println("Selected row count : " + rows.size());
    
    for (Object row : rows) {
      System.out.println(row);  //Each row is a list of properties in the query
    }
    
    session.getTransaction().commit();
    session.close();
  }
  
}
   

It gives the following output,
Selected row count : 10
[1, PQR]
[2, ABC]
[3, MNO]
[4, IJK]
[5, ART]
[6, RNK]
[7, AOQ]
[8, BQO]
[9, CFR]
[10, CFR]


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