I just have two classes, Being and Alien. Alien is derived from Being and I am using table per concrete class with union-subclass tag.
After creating two aliens in the
setUp() from my testcase I use two different sessions (
s1 and
s2) to load one and the same object. Now I change something in session
s1 and commit. Everthing is fine until here.
At next I change something in session
s2 and commit...Now there should be an
StaleObjectException...but there is NONE?!?!. I also tried this with joined-subclass inheritance but it also doesn´t work. I don´t have any idea whats wrong. Maybe someone can help me out of that mess.
I also tried optimistic-locking with just one class (I mean there was no inheritance) and it worked perfect, but with inheritance..no chance!
Thanks, Al
Hibernate version: 3.0.5
Mapping documents:
Code:
<hibernate-mapping>
<class name="persistent.Being" abstract="true" dynamic-update="true" optimistic-lock="all">
<id name="id" unsaved-value="0" column="ID">
<generator class="increment"/>
</id>
<property name="identity" not-null="true" column="IDENT"/>
<set name="friends" table="BEINGS_FRIENDS_US">
<key column="BEINGID"/>
<many-to-many column="ID" class="persistent.Being"/>
</set>
</class>
</hibernate-mapping>
Code:
<hibernate-mapping>
<union-subclass name="persistent.Alien" extends="persistent.Being" dynamic-update="true" table="ALIENUS">
<property name="species" not-null="true" column="SPECIES"/>
</union-subclass>
</hibernate-mapping>
Code:
protected void setUp() throws Exception
{
super.setUp();
try
{
tx = session.beginTransaction();
Alien a1 = new Alien();
a1.setIdentity("c3po");
a1.setSpecies("Translator");
Alien a2 = new Alien();
a2.setIdentity("R2");
a2.setSpecies("Fighter");
session.save(a1);
session.save(a2);
tx.commit();
}
catch (Exception ex)
{
tx.rollback();
fail("Exception thrown: " + ex.getMessage() + ", " + ex.toString());
}
}
public void testConcurrencyUpdateFail()
{
try
{
tx = s1.beginTransaction();
Query q1 = s1.createQuery("FROM Alien alien WHERE alien.identity = ?");
q1.setString(0, "c3po");
Alien a1 = null;
a1 = (Alien)q1.uniqueResult();
tx.commit();
assertNotNull(a1);
tx = s2.beginTransaction();
Query q2 = s2.createQuery("FROM Alien alien WHERE alien.identity = ?");
q2.setString(0, "c3po");
Alien a2 = null;
a2 = (Alien)q2.uniqueResult();
tx.commit();
assertNotNull(a2);
tx = s1.beginTransaction();
a1.setIdentity("c4po");
s1.update(a1);
tx.commit();
tx = s2.beginTransaction();
a2.setIdentity("c5po");
s2.update(a2);
tx.commit();
fail("NO StaleObjectStateException thrown!!!");
}
catch (StaleObjectStateException ex)
{
tx.rollback();
}
}
protected void tearDown() throws Exception
{
super.tearDown();
try
{
tx = session.beginTransaction();
Query q = session.createQuery("FROM Alien");
List l = q.list();
Iterator i = l.iterator();
while (i.hasNext()) {
Alien a = (Alien)i.next();
session.delete(a);
}
tx.commit();
tx = session.beginTransaction();
l = q.list();
tx.commit();
assertFalse(l.iterator().hasNext());
}
catch (Exception ex)
{
tx.rollback();
fail("Exception thrown: " + ex.getMessage() + ", " + ex.toString());
}
finally
{
session.connection().close();
session.close();
}
}
Full stack trace of any exception that occurs:There is no exception...that´s my problem ;-)
Name and version of the database you are using: Oracle9i Enterprise Edition Release 9.2.0.1.0
JDBC driver: Oracle JDBC driver, version: 9.2.0.5.0
The generated SQL (show_sql=true):Debug level Hibernate log excerpt:Code:
Hibernate: insert into ALIENUS (IDENT, SPECIES, ID) values (?, ?, ?)
Hibernate: insert into ALIENUS (IDENT, SPECIES, ID) values (?, ?, ?)
Hibernate: select alien0_.ID as ID, alien0_.IDENT as IDENT0_, alien0_.SPECIES as SPECIES2_ from ALIENUS alien0_ where alien0_.IDENT=?
Hibernate: select alien0_.ID as ID, alien0_.IDENT as IDENT0_, alien0_.SPECIES as SPECIES2_ from ALIENUS alien0_ where alien0_.IDENT=?
Hibernate: update ALIENUS set IDENT=? where ID=?
Hibernate: update ALIENUS set IDENT=? where ID=?
Hibernate: select alien0_.ID as ID, alien0_.IDENT as IDENT0_, alien0_.SPECIES as SPECIES2_ from ALIENUS alien0_
Hibernate: delete from ALIENUS where ID=?
Hibernate: delete from ALIENUS where ID=?
Hibernate: select alien0_.ID as ID, alien0_.IDENT as IDENT0_, alien0_.SPECIES as SPECIES2_ from ALIENUS alien0_
[/i][/u]
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