HHH-5715 test case

This commit is contained in:
Yoryos Valotasios 2010-11-05 11:23:08 +02:00
parent c0352429db
commit 55c822c56e
5 changed files with 196 additions and 4 deletions

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package org.hibernate.test.pagination;
import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.dialect.SQLServerDialect;
import org.hibernate.testing.junit.functional.FunctionalTestCase;
/**
* HHH-5715 bug test case: Dublicated entries when using select distinct with join and pagination. The bug has to do
* with new {@link SQLServerDialect} that uses row_number function for pagination
*
* @author Valotasios Yoryos
*
*/
public class DistinctSelectTest extends FunctionalTestCase {
private static final int NUM_OF_USERS = 30;
public DistinctSelectTest(String string) {
super(string);
}
public String[] getMappings() {
return new String[] { "pagination/EntryTag.hbm.xml" };
}
public void feedDatabase() {
List<Tag> tags = new ArrayList<Tag>();
Session s = openSession();
Transaction t = s.beginTransaction();
for (int i = 0; i < 5; i++) {
Tag tag = new Tag("Tag: " + UUID.randomUUID().toString());
tags.add(tag);
s.save(tag);
}
for (int i = 0; i < NUM_OF_USERS; i++) {
Entry e = new Entry("Entry: " + UUID.randomUUID().toString());
e.getTags().addAll(tags);
s.save(e);
}
t.commit();
s.close();
}
public void testDistinctSelectWithJoin() {
feedDatabase();
Session s = openSession();
List<Entry> entries = s.createQuery("select distinct e from Entry e join e.tags t where t.surrogate != null order by e.name").setFirstResult(10).setMaxResults(5).list();
// System.out.println(entries);
Entry firstEntry = entries.remove(0);
assertFalse("The list of entries should not contain dublicated Entry objects as we've done a distinct select", entries.contains(firstEntry));
assertEquals(5, entries.size());
s.close();
}
}

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package org.hibernate.test.pagination;
import java.util.HashSet;
import java.util.Set;
public class Entry {
private int id;
private String name;
private Set<Tag> tags = new HashSet<Tag>();
public Entry() {
}
public Entry(String name) {
this.name = name;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Set<Tag> getTags() {
return tags;
}
public void setTags(Set<Tag> tags) {
this.tags = tags;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((name == null) ? 0 : name.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj == null) return false;
if (getClass() != obj.getClass()) return false;
Entry other = (Entry) obj;
if (name == null) {
if (other.name != null) return false;
}
else if (!name.equals(other.name)) return false;
return true;
}
@Override
public String toString() {
return getName();
}
}

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<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="org.hibernate.test.pagination">
<class name="Tag" dynamic-update="true">
<id name="id">
<generator class="increment" />
</id>
<property name="surrogate" />
</class>
<class name="Entry" dynamic-update="true">
<id name="id">
<generator class="increment" />
</id>
<property name="name" />
<set name="tags" table="entry_tag">
<key column="entry_id" />
<many-to-many column="tag_id" class="org.hibernate.test.pagination.Tag" />
</set>
</class>
</hibernate-mapping>

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package org.hibernate.test.pagination;
public class Tag {
private int id;
private String surrogate;
public Tag() {
}
public Tag(String surrogate) {
this.surrogate = surrogate;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getSurrogate() {
return surrogate;
}
public void setSurrogate(String surrogate) {
this.surrogate = surrogate;
}
}

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# 51 Franklin Street, Fifth Floor
# Boston, MA 02110-1301 USA
#
hibernate.dialect org.hibernate.dialect.H2Dialect
hibernate.connection.driver_class org.h2.Driver
hibernate.connection.url jdbc:h2:mem:db1;DB_CLOSE_DELAY=-1;MVCC=TRUE
hibernate.connection.username sa
hibernate.dialect org.hibernate.dialect.SQLServer2008Dialect
hibernate.connection.driver_class net.sourceforge.jtds.jdbc.Driver
hibernate.connection.url jdbc:jtds:sqlserver://localhost/test
hibernate.connection.username tester
hibernate.connection.password tester
hibernate.connection.pool_size 5