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OPENJPA-508 Merge from ../branches/1.0.x. svn merge -c 617760 ../branches/1.0.x 

git-svn-id: https://svn.apache.org/repos/asf/openjpa/trunk@617763 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Patrick Linskey 2008-02-02 06:42:20 +00:00
parent 8ba8ffffc4
commit 18c90bbd0b
2 changed files with 34 additions and 3 deletions
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4
openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/kernel/exps/SelectConstructor.java
View File

@ -302,8 +302,8 @@ public class SelectConstructor
}
// add conditions limiting the projections to the proper classes; if
// this isn't a projection then they will already be added
if (exps.projections.length > 0) {
// this isn't a projection or a subq then they will already be added
if (exps.projections.length > 0 || sel.getParent() != null) {
ctx.store.loadSubclasses(mapping);
mapping.getDiscriminator().addClassConditions((inner != null)
? inner : sel, subclasses, joins);

33
openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/persistence/discriminator/TestDiscriminatorTypes.java
View File

@ -18,7 +18,9 @@
*/
package org.apache.openjpa.persistence.discriminator;
import java.util.List;
import javax.persistence.EntityManager;
import javax.persistence.Query;
import org.apache.openjpa.jdbc.meta.ClassMapping;
import org.apache.openjpa.jdbc.meta.Discriminator;
@ -32,7 +34,7 @@ public class TestDiscriminatorTypes extends SingleEMFTestCase {
CharRootEntity.class, IntegerAbstractEntity.class,
IntegerLeafEntity.class, IntegerRootEntity.class,
StringAbstractEntity.class, StringLeafEntity.class,
StringRootEntity.class);
StringRootEntity.class, CLEAR_TABLES, "openjpa.Log", "SQL=TRACE");
}
public void testCharDiscriminators() {
@ -144,4 +146,33 @@ public class TestDiscriminatorTypes extends SingleEMFTestCase {
assertNotNull(root2);
em.close();
}
public void testExistsQuery() {
EntityManager em = emf.createEntityManager();
em.getTransaction().begin();
StringRootEntity e = new StringRootEntity();
e.setName("foo");
em.persist(e);
e = new StringRootEntity();
e.setName("foo");
em.persist(e);
e = new StringRootEntity();
e.setName("bar");
em.persist(e);
em.getTransaction().commit();
em.close();
em = emf.createEntityManager();
Query q = em.createQuery("select o from StringAbstractEntity o " +
"where exists (select o2 from StringLeafEntity o2)");
List<StringAbstractEntity> list = q.getResultList();
assertEquals(0, list.size());
for (StringAbstractEntity entity : list)
assertTrue(entity instanceof StringLeafEntity);
em.close();
}
}