BE THE CODER > Hibernate > Hibernate Query Language (HQL)

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

File Name :	com/bethecoder/tutorials/hibernate/basic/tests/HQLTransformAliasMapTest.java
Author :	Sudhakar KV
Email :	[email protected]


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 HQLTransformAliasMapTest {



  /**

   * @param args

   */

  public static void main(String[] args) {



    Session session = HibernateUtil.getSessionFactory().openSession();

    session.beginTransaction();

    

    String HQL_QUERY = "select comp.id as comp_id, comp.name as comp_name from Company comp";

    Query query = session.createQuery(HQL_QUERY);

    query.setResultTransformer(Transformers.ALIAS_TO_ENTITY_MAP);

    

    List<?> rows = query.list();    

    System.out.println("Selected row count : " + rows.size());

    

    for (Object row : rows) {

      System.out.println(row); //Each row is a map of properties in the query

                   //with key as alias and property as value

    }

    

    session.getTransaction().commit();

    session.close();

  }

  

}

Map Result Transformer