cdmlib-persistence/src/main/java/eu/etaxonomy/cdm/persistence/dao/hibernate/common/DaoBase.java

   1 /**
   2 * Copyright (C) 2007 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9
  10 package eu.etaxonomy.cdm.persistence.dao.hibernate.common;
  11
  12 import java.util.Collections;
  13 import java.util.Comparator;
  14 import java.util.HashMap;
  15 import java.util.List;
  16 import java.util.Map;
  17
  18 import org.hibernate.Criteria;
  19 import org.hibernate.Session;
  20 import org.hibernate.SessionFactory;
  21 import org.springframework.beans.factory.annotation.Autowired;
  22
  23 import eu.etaxonomy.cdm.persistence.query.OrderHint;
  24
  25 public abstract class DaoBase {
  26
  27         @Autowired
  28         private SessionFactory factory;
  29
  30         public void setSessionFactory(SessionFactory sessionFactory) {
  31                 this.factory = sessionFactory;
  32         }
  33
  34         protected Session getSession(){
  35                 Session session = factory.getCurrentSession();
  36                 return session;
  37         }
  38
  39         public void flush(){
  40                 getSession().flush();
  41         }
  42
  43         private class OrderHintComparator implements Comparator<OrderHint> {
  44
  45                 public int compare(OrderHint o1, OrderHint o2) {
  46                         return o1.getPropertyName().compareTo(o2.getPropertyName());
  47                 }
  48
  49         }
  50
  51         protected void addOrder(Criteria criteria, List<OrderHint> orderHints) {
  52
  53                 if(orderHints != null){
  54                         Collections.sort(orderHints, new OrderHintComparator());
  55
  56                         Map<String,Criteria> criteriaMap = new HashMap<String,Criteria>();
  57                         for(OrderHint orderHint : orderHints){
  58                                 orderHint.add(criteria,criteriaMap);
  59                         }
  60                 }
  61         }
  62
  63 }