blob: 06a627472b780769f46e233a11ee55c9d467823a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
package net.sf.oreka.srvc;
import net.sf.oreka.HibernateManager;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;
import org.hibernate.Criteria;
import org.hibernate.HibernateException;
import org.hibernate.ScrollableResults;
import org.hibernate.Session;
import org.hibernate.Transaction;
public class ObjectServiceHbn implements ObjectService {
static Logger logger = Logger.getLogger(ObjectServiceHbn.class);
public Object getObjectById(java.lang.Class cl, int id) {
Session hbnSession = null;
Object obj = null;
logger.debug("Retrieving " + cl.getName() + " object with id:" + id);
try
{
hbnSession = HibernateManager.instance().getSession();
obj = hbnSession.get(cl, id);
}
catch ( HibernateException he ) {
logger.error("getObjectById: exception:" + he.getClass().getName());
}
catch (Exception e)
{
logger.error("getObjectById: exception:", e);
}
finally {
if(hbnSession != null) {hbnSession.close();}
}
return obj;
}
public void saveObject(Object obj) {
Session hbnSession = null;
Transaction tx = null;
logger.debug("Saving " + obj.getClass().getName());
try
{
hbnSession = HibernateManager.instance().getSession();
tx = hbnSession.beginTransaction();
hbnSession.saveOrUpdate(obj); // was merge
tx.commit();
}
catch ( HibernateException he ) {
logger.log(Level.ERROR, he.toString());
he.printStackTrace();
}
catch (Exception e)
{
logger.error(e);
e.printStackTrace();
}
finally {
if(hbnSession != null) {hbnSession.close();}
}
}
public int getNumObjects(java.lang.Class cl) {
Session hbnSession = null;
int numObjets = 0;
try
{
hbnSession = HibernateManager.instance().getSession();
Criteria crit = hbnSession.createCriteria(cl);
// figure out total number of objects returned
ScrollableResults scrollRes = crit.scroll();
if ( scrollRes.last() ) {
numObjets = scrollRes.getRowNumber();
}
}
catch ( HibernateException he ) {
logger.error("getNumObjects: exception:" + he.getClass().getName());
}
catch (Exception e)
{
logger.error("getNumObjects: exception:", e);
}
finally {
if(hbnSession != null) {hbnSession.close();}
}
return numObjets;
}
}
|
