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1 package org.hibernate.test.readonly;
3
4 import java.math.BigDecimal  ;
5 import java.util.List ;
6
7 import junit.framework.Test;
8 import junit.framework.TestSuite;
9
10 import org.hibernate.CacheMode;
11 import org.hibernate.ScrollMode;
12 import org.hibernate.ScrollableResults;
13 import org.hibernate.Session;
14 import org.hibernate.Transaction;
15 import org.hibernate.cfg.Configuration;
16 import org.hibernate.cfg.Environment;
17 import org.hibernate.test.TestCase;
18
19
26 public class ReadOnlyTest extends TestCase {
27
28 public ReadOnlyTest(String str) {
29 super(str);
30 }
31
32 public void testReadOnlyMode() {
33
34 Session s = openSession();
35 s.setCacheMode(CacheMode.IGNORE);
36 Transaction t = s.beginTransaction();
37 for ( int i=0; i<100; i++ ) {
38 DataPoint dp = new DataPoint();
39 dp.setX( new BigDecimal (i * 0.1d).setScale(19, BigDecimal.ROUND_DOWN) );
40 dp.setY( new BigDecimal ( Math.cos( dp.getX().doubleValue() ) ).setScale(19, BigDecimal.ROUND_DOWN) );
41 s.save(dp);
42 }
43 t.commit();
44 s.close();
45
46 s = openSession();
47 s.setCacheMode(CacheMode.IGNORE);
48 t = s.beginTransaction();
49 int i = 0;
50 ScrollableResults sr = s.createQuery("from DataPoint dp order by dp.x asc")
51 .setReadOnly(true)
52 .scroll(ScrollMode.FORWARD_ONLY);
53 while ( sr.next() ) {
54 DataPoint dp = (DataPoint) sr.get(0);
55 if (++i==50) {
56 s.setReadOnly(dp, false);
57 }
58 dp.setDescription("done!");
59 }
60 t.commit();
61 s.clear();
62 t = s.beginTransaction();
63 List single = s.createQuery("from DataPoint where description='done!'").list();
64 assertEquals( single.size(), 1 );
65 s.createQuery("delete from DataPoint").executeUpdate();
66 t.commit();
67 s.close();
68
69 }
70
71 protected void configure(Configuration cfg) {
72 cfg.setProperty(Environment.STATEMENT_BATCH_SIZE, "20");
73 }
74
75 protected String [] getMappings() {
76 return new String [] { "readonly/DataPoint.hbm.xml" };
77 }
78
79 public static Test suite() {
80 return new TestSuite(ReadOnlyTest.class);
81 }
82
83 public String getCacheConcurrencyStrategy() {
84 return null;
85 }
86
87 }
88
89 |
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