J'ai un problème lors d'une sauvegarde d'un set avec l'attribut not-null plutot qu'un relation bidirectionnelle.
voir
Very important note de la doc
http://www.hibernate.org/hib_docs/v3/re ... -onetomany
je me suis inspiré du testcase onetomany pour l'illustrer, je pense à un bugs, mais je ne l'ai pas trouver dans JIRA.
OneToManyTest utilise un mapping avec une relation bidirectionnelle fonctionne, tandis que OneToManyTestKO qui utilise l'attribut not-null ne fonctionne pas.
HS : on ne peut pas mettre d'attachement de fichier dans le forum, Pourquoi ?
Dans le répertoire test\org\hibernate\test\onetomany\ de la distrib :
Hibernate version:
3.0.5
Mapping documents:
fichier Parent.hbm.xml
Code:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!--
This mapping demonstrates how to use an "inverse" join
to map an association table as an association with
one-to-many multiplicity at the level of the object
model.
-->
<hibernate-mapping package="org.hibernate.test.onetomany">
<class name="Parent">
<id name="id" column="parent_id">
<generator class="increment" />
</id>
<property name="name" />
<set name="children" table="ParentChild" cascade="all" inverse="true">
<key column="parent_id"/>
<one-to-many class="Child" />
</set>
</class>
<class name="Child">
<id name="id" column="child_id">
<generator class="increment" />
</id>
<property name="name" />
<many-to-one name="parent" class="Parent" column="parent_id"/>
</class>
</hibernate-mapping>
fichier ParentKO.hbm.xml
Code:
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping package="org.hibernate.test.onetomany">
<class name="Parent">
<id name="id" column="parent_id">
<generator class="increment" />
</id>
<property name="name" />
<set name="children" table="ParentChild" cascade="all" >
<key column="parent_id" not-null="true"/>
<one-to-many class="Child" />
</set>
</class>
<class name="Child">
<id name="id" column="child_id">
<generator class="increment" />
</id>
<property name="name" />
</class>
</hibernate-mapping>
fichier OneToManyTest.java
Code:
package org.hibernate.test.onetomany.notnull;
import java.io.Serializable;
import junit.framework.Test;
import junit.framework.TestSuite;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.criterion.Expression;
import org.hibernate.test.TestCase;
import org.hibernate.test.onetomany.Child;
import org.hibernate.test.onetomany.Parent;
/**
* @author Lilians Auvigne
*/
public class OneToManyTest extends TestCase {
public OneToManyTest(String str) {
super(str);
}
public Serializable getTestParentId() {
Session s = openSession();
Transaction t = s.beginTransaction();
Child c = new Child();
c.setName("Child One");
Parent p = new Parent();
p.setName("Parent");
p.getChildren().add(c);
c.setParent(p);
c = new Child();
c.setName("Child Two");
p.getChildren().add(c);
c.setParent(p);
c = new Child();
c.setName("Child three");
p.getChildren().add(c);
c.setParent(p);
Serializable parentId = s.save(p);
t.commit();
s.close();
s = openSession();
t = s.beginTransaction();
Parent pSaved = (Parent) s.createCriteria(Parent.class).add(
Expression.eq("id", parentId)).uniqueResult();
assertEquals("pSaved.getChildren().size() ", pSaved.getChildren()
.size(), 3);
t.commit();
s.close();
return parentId;
}
public void testOneToManySave3AndRemove() {
Serializable parentId = getTestParentId();
Session s = openSession();
Transaction t = s.beginTransaction();
Parent pSaved = (Parent) s.createCriteria(Parent.class).add(
Expression.eq("id", parentId)).uniqueResult();
//removed firstChild
Child c = (Child) pSaved.getChildren().iterator().next();
System.err.println("Test for removed " + c.getName());
boolean isRemoved = pSaved.getChildren().remove(c);
c.setParent(null);
assertTrue("isRemoved", isRemoved);
assertEquals("pSaved.getChildren().size() after remove ", pSaved.getChildren()
.size(), 2);
s.save(pSaved);
assertEquals("pSaved.getChildren().size() after save", pSaved.getChildren()
.size(), 2);
pSaved = (Parent) s.createCriteria(Parent.class).add(
Expression.eq("id", parentId)).uniqueResult();
assertEquals("pSaved.getChildren().size() after get", 2, pSaved.getChildren().size());
t.commit();
s.close();
//read this object
s = openSession();
t = s.beginTransaction();
Parent pReaded = (Parent) s.createCriteria(Parent.class).add(
Expression.eq("id", parentId)).uniqueResult();
assertEquals("pReaded.getChildren().size() after get ", pReaded.getChildren()
.size(), 2);
t.commit();
s.close();
}
protected String[] getMappings() {
return new String[] { "onetomany/notnull/Parent.hbm.xml" };
}
public static Test suite() {
return new TestSuite(OneToManyTest.class);
}
}
fichier OneToManyTestKO.java
Code:
package org.hibernate.test.onetomany.notnull;
import java.io.Serializable;
import junit.framework.Test;
import junit.framework.TestSuite;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.criterion.Expression;
import org.hibernate.test.TestCase;
import org.jgroups.SetStateEvent;
/**
* @author Lilians Auvigne
*/
public class OneToManyTestKO extends OneToManyTest {
public OneToManyTestKO(String str) {
super(str);
}
protected String[] getMappings() {
return new String[] { "onetomany/notnull/ParentKO.hbm.xml" };
}
public static Test suite() {
return new TestSuite(OneToManyTestKO.class);
}
}
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