KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > polepos > teams > hibernate > HibernateDriver


1 /*
2 This file is part of the PolePosition database benchmark
3 http://www.polepos.org
4
5 This program is free software; you can redistribute it and/or
6 modify it under the terms of the GNU General Public License
7 as published by the Free Software Foundation; either version 2
8 of the License, or (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public
16 License along with this program; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
18 MA 02111-1307, USA. */

19
20 package org.polepos.teams.hibernate;
21
22 import java.util.*;
23
24 import org.polepos.framework.*;
25
26 import net.sf.hibernate.*;
27
28 /**
29  * @author Herkules
30  */

31 public abstract class HibernateDriver extends Driver
32 {
33
34     public void takeSeatIn( Car car, TurnSetup setup ) throws CarMotorFailureException{
35         super.takeSeatIn(car, setup);
36     }
37
38     public void prepare() throws CarMotorFailureException {
39         hibernateCar().openSession();
40     }
41     
42     public void backToPit(){
43         hibernateCar().closeSession();
44     }
45     
46     public HibernateCar hibernateCar(){
47         return (HibernateCar)car();
48     }
49         
50     public Session db(){
51         return hibernateCar().getSession();
52     }
53
54     protected void doQuery(String JavaDoc query) {
55         
56         try{
57             Iterator it = db().iterate( query );
58             while(it.hasNext()){
59                 Object JavaDoc o = it.next();
60                 if(o instanceof CheckSummable){
61                     addToCheckSum(((CheckSummable)o).checkSum());
62                 }
63             }
64         }
65         catch ( HibernateException hex ){
66             hex.printStackTrace();
67         }
68     }
69     
70     protected void doSingleResultQuery(String JavaDoc query) {
71         try{
72             Iterator it = db().iterate( query );
73             Object JavaDoc o = (Object JavaDoc) it.next();
74             if(o instanceof CheckSummable){
75                 addToCheckSum(((CheckSummable)o).checkSum());
76             }
77             if(it.hasNext()) {
78                 System.err.println("Multiple results, expected only one.");
79             }
80         }
81         catch ( HibernateException hex ){
82             hex.printStackTrace();
83         }
84     }
85 }
86
Popular Tags