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1 package org.hibernate.test.iterate;
3
4 import java.util.Iterator  ;
5
6 import junit.framework.Test;
7 import junit.framework.TestSuite;
8
9 import org.hibernate.Hibernate;
10 import org.hibernate.ScrollableResults;
11 import org.hibernate.Session;
12 import org.hibernate.Transaction;
13 import org.hibernate.cfg.Configuration;
14 import org.hibernate.cfg.Environment;
15 import org.hibernate.test.TestCase;
16
17
20 public class IterateTest extends TestCase {
21
22 public IterateTest(String str) {
23 super(str);
24 }
25
26 public void testIterate() throws Exception {
27 getSessions().getStatistics().clear();
28 Session s = openSession();
29 Transaction t = s.beginTransaction();
30 Item i1 = new Item("foo");
31 Item i2 = new Item("bar");
32 s.persist("Item", i1);
33 s.persist("Item", i2);
34 t.commit();
35 s.close();
36
37 s = openSession();
38 t = s.beginTransaction();
39 Iterator iter = s.getNamedQuery("Item.nameDesc").iterate();
40 i1 = (Item) iter.next();
41 i2 = (Item) iter.next();
42 assertFalse( Hibernate.isInitialized(i1) );
43 assertFalse( Hibernate.isInitialized(i2) );
44 i1.getName();
45 i2.getName();
46 assertFalse( Hibernate.isInitialized(i1) );
47 assertFalse( Hibernate.isInitialized(i2) );
48 assertEquals( i1.getName(), "foo" );
49 assertEquals( i2.getName(), "bar" );
50 Hibernate.initialize(i1);
51 assertFalse( iter.hasNext() );
52 s.delete(i1);
53 s.delete(i2);
54 t.commit();
55 s.close();
56 assertEquals( getSessions().getStatistics().getEntityFetchCount(), 2 );
57 }
58
59 public void testScroll() throws Exception {
60 getSessions().getStatistics().clear();
61 Session s = openSession();
62 Transaction t = s.beginTransaction();
63 Item i1 = new Item("foo");
64 Item i2 = new Item("bar");
65 s.persist("Item", i1);
66 s.persist("Item", i2);
67 t.commit();
68 s.close();
69
70 s = openSession();
71 t = s.beginTransaction();
72 ScrollableResults sr = s.getNamedQuery("Item.nameDesc").scroll();
73 assertTrue( sr.next() );
74 i1 = (Item) sr.get(0);
75 assertTrue( sr.next() );
76 i2 = (Item) sr.get(0);
77 assertTrue( Hibernate.isInitialized(i1) );
78 assertTrue( Hibernate.isInitialized(i2) );
79 assertEquals( i1.getName(), "foo" );
80 assertEquals( i2.getName(), "bar" );
81 assertFalse( sr.next() );
82 s.delete(i1);
83 s.delete(i2);
84 t.commit();
85 s.close();
86 assertEquals( getSessions().getStatistics().getEntityFetchCount(), 0 );
87 }
88
89 protected String [] getMappings() {
90 return new String [] { "iterate/Item.hbm.xml" };
91 }
92
93 public static Test suite() {
94 return new TestSuite(IterateTest.class);
95 }
96
97 protected void configure(Configuration cfg) {
98 super.configure( cfg );
99 cfg.setProperty( Environment.USE_QUERY_CACHE, "true" );
100 cfg.setProperty( Environment.CACHE_REGION_PREFIX, "foo" );
101 cfg.setProperty( Environment.USE_SECOND_LEVEL_CACHE, "true" );
102 cfg.setProperty( Environment.GENERATE_STATISTICS, "true" );
103 }
104 }
105
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