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* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
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*
* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
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* KIND, either express or implied. See the License for the
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package org.apache.cayenne.access;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import org.apache.cayenne.Cayenne;
import org.apache.cayenne.ObjectContext;
import org.apache.cayenne.Persistent;
import org.apache.cayenne.di.Inject;
import org.apache.cayenne.query.EJBQLQuery;
import org.apache.cayenne.test.jdbc.DBHelper;
import org.apache.cayenne.test.jdbc.TableHelper;
import org.apache.cayenne.testdo.testmap.Artist;
import org.apache.cayenne.unit.AccessStackAdapter;
import org.apache.cayenne.unit.di.server.ServerCase;
import org.apache.cayenne.unit.di.server.UseServerRuntime;
@UseServerRuntime(ServerCase.TESTMAP_PROJECT)
public class DataContextEJBQLSubqueryTest extends ServerCase {
@Inject
private ObjectContext context;
@Inject
private AccessStackAdapter accessStackAdapter;
@Inject
private DBHelper dbHelper;
private TableHelper tArtist;
private TableHelper tPainting;
@Override
protected void setUpAfterInjection() throws Exception {
dbHelper.deleteAll("PAINTING_INFO");
dbHelper.deleteAll("PAINTING");
dbHelper.deleteAll("ARTIST_EXHIBIT");
dbHelper.deleteAll("ARTIST_GROUP");
dbHelper.deleteAll("ARTIST");
tArtist = new TableHelper(dbHelper, "ARTIST");
tArtist.setColumns("ARTIST_ID", "ARTIST_NAME");
tPainting = new TableHelper(dbHelper, "PAINTING");
tPainting.setColumns(
"PAINTING_ID",
"ARTIST_ID",
"PAINTING_TITLE",
"ESTIMATED_PRICE");
}
private void createTwoArtistsFourPaintings() throws Exception {
tArtist.insert(33001, "artist1");
tArtist.insert(33002, "artist2");
tPainting.insert(33001, 33001, "P1", 3000);
tPainting.insert(33002, 33001, "P2", 4000);
tPainting.insert(33003, null, "P1", 5000);
tPainting.insert(33004, null, "P4", 6000);
}
public void testSubqueryNoQualifier() throws Exception {
if (!accessStackAdapter.supportsAllAnySome()) {
return;
}
createTwoArtistsFourPaintings();
String ejbql = "SELECT DISTINCT p FROM Painting p"
+ " WHERE p.estimatedPrice = ALL ("
+ " SELECT MAX(p1.estimatedPrice) FROM Painting p1"
+ ")";
EJBQLQuery query = new EJBQLQuery(ejbql);
List<?> objects = context.performQuery(query);
assertEquals(1, objects.size());
Set<Object> ids = new HashSet<Object>();
Iterator<?> it = objects.iterator();
while (it.hasNext()) {
Object id = Cayenne.pkForObject((Persistent) it.next());
ids.add(id);
}
assertTrue(ids.contains(new Integer(33004)));
}
public void testDifferentEntity() throws Exception {
createTwoArtistsFourPaintings();
String ejbql = "SELECT a FROM Artist a"
+ " WHERE EXISTS ("
+ " SELECT DISTINCT p1.paintingTitle FROM Painting p1"
+ " WHERE p1.toArtist = a"
+ ")";
EJBQLQuery query = new EJBQLQuery(ejbql);
List<?> objects = context.performQuery(query);
assertEquals(1, objects.size());
Set<Object> ids = new HashSet<Object>();
Iterator<?> it = objects.iterator();
while (it.hasNext()) {
Object id = Cayenne.pkForObject((Persistent) it.next());
ids.add(id);
}
assertTrue(ids.contains(33001l));
assertTrue("" + objects.get(0), objects.get(0) instanceof Artist);
}
public void testExists() throws Exception {
createTwoArtistsFourPaintings();
String ejbql = "SELECT p FROM Painting p"
+ " WHERE EXISTS ("
+ " SELECT DISTINCT p1.paintingTitle FROM Painting p1"
+ " WHERE p1.paintingTitle = p.paintingTitle"
+ " AND p.estimatedPrice <> p1.estimatedPrice"
+ ")";
EJBQLQuery query = new EJBQLQuery(ejbql);
List<?> objects = context.performQuery(query);
assertEquals(2, objects.size());
Set<Object> ids = new HashSet<Object>();
Iterator<?> it = objects.iterator();
while (it.hasNext()) {
Object id = Cayenne.pkForObject((Persistent) it.next());
ids.add(id);
}
assertTrue(ids.contains(new Integer(33001)));
assertTrue(ids.contains(new Integer(33003)));
}
public void testAll() throws Exception {
if (!accessStackAdapter.supportsAllAnySome()) {
return;
}
createTwoArtistsFourPaintings();
String ejbql = "SELECT p FROM Painting p"
+ " WHERE p.estimatedPrice > ALL ("
+ " SELECT p1.estimatedPrice FROM Painting p1"
+ " WHERE p1.paintingTitle = 'P2'"
+ ")";
EJBQLQuery query = new EJBQLQuery(ejbql);
List<?> objects = context.performQuery(query);
assertEquals(2, objects.size());
Set<Object> ids = new HashSet<Object>();
Iterator<?> it = objects.iterator();
while (it.hasNext()) {
Object id = Cayenne.pkForObject((Persistent) it.next());
ids.add(id);
}
assertTrue(ids.contains(new Integer(33003)));
assertTrue(ids.contains(new Integer(33004)));
}
public void testAny() throws Exception {
if (!accessStackAdapter.supportsAllAnySome()) {
return;
}
createTwoArtistsFourPaintings();
String ejbql = "SELECT p FROM Painting p"
+ " WHERE p.estimatedPrice > ANY ("
+ " SELECT p1.estimatedPrice FROM Painting p1"
+ " WHERE p1.paintingTitle = 'P1'"
+ ")";
EJBQLQuery query = new EJBQLQuery(ejbql);
List<?> objects = context.performQuery(query);
assertEquals(3, objects.size());
Set<Object> ids = new HashSet<Object>();
Iterator<?> it = objects.iterator();
while (it.hasNext()) {
Object id = Cayenne.pkForObject((Persistent) it.next());
ids.add(id);
}
assertTrue(ids.contains(new Integer(33002)));
assertTrue(ids.contains(new Integer(33003)));
assertTrue(ids.contains(new Integer(33004)));
}
public void testSome() throws Exception {
if (!accessStackAdapter.supportsAllAnySome()) {
return;
}
createTwoArtistsFourPaintings();
String ejbql = "SELECT p FROM Painting p"
+ " WHERE p.estimatedPrice > SOME ("
+ " SELECT p1.estimatedPrice FROM Painting p1"
+ " WHERE p1.paintingTitle = 'P1'"
+ ")";
EJBQLQuery query = new EJBQLQuery(ejbql);
List<?> objects = context.performQuery(query);
assertEquals(3, objects.size());
Set<Object> ids = new HashSet<Object>();
Iterator<?> it = objects.iterator();
while (it.hasNext()) {
Object id = Cayenne.pkForObject((Persistent) it.next());
ids.add(id);
}
assertTrue(ids.contains(new Integer(33002)));
assertTrue(ids.contains(new Integer(33003)));
assertTrue(ids.contains(new Integer(33004)));
}
}