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package org.apache.cayenne;
import org.apache.cayenne.di.Inject;
import org.apache.cayenne.exp.ExpressionFactory;
import org.apache.cayenne.query.RefreshQuery;
import org.apache.cayenne.query.SelectQuery;
import org.apache.cayenne.test.jdbc.DBHelper;
import org.apache.cayenne.test.jdbc.TableHelper;
import org.apache.cayenne.testdo.relationships_set_to_many.SetToMany;
import org.apache.cayenne.testdo.relationships_set_to_many.SetToManyTarget;
import org.apache.cayenne.unit.di.server.CayenneProjects;
import org.apache.cayenne.unit.di.server.ServerCase;
import org.apache.cayenne.unit.di.server.UseServerRuntime;
import org.junit.Before;
import org.junit.Test;
import java.util.Set;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;
import static org.junit.Assert.assertTrue;
@UseServerRuntime(CayenneProjects.RELATIONSHIPS_SET_TO_MANY_PROJECT)
public class CDOSetRelationshipIT extends ServerCase {
@Inject
protected ObjectContext context;
@Inject
protected DBHelper dbHelper;
protected TableHelper tSetToMany;
protected TableHelper tSetToManyTarget;
@Before
public void setUp() throws Exception {
tSetToMany = new TableHelper(dbHelper, "SET_TO_MANY");
tSetToMany.setColumns("ID");
tSetToManyTarget = new TableHelper(dbHelper, "SET_TO_MANY_TARGET");
tSetToManyTarget.setColumns("ID", "SET_TO_MANY_ID");
}
protected void createTestDataSet() throws Exception {
tSetToMany.insert(1);
tSetToMany.insert(2);
tSetToManyTarget.insert(1, 1);
tSetToManyTarget.insert(2, 1);
tSetToManyTarget.insert(3, 1);
tSetToManyTarget.insert(4, 2);
}
@Test
public void testReadToMany() throws Exception {
createTestDataSet();
SetToMany o1 = Cayenne.objectForPK(context, SetToMany.class, 1);
Set targets = o1.getTargets();
assertNotNull(targets);
assertTrue(((ValueHolder) targets).isFault());
assertEquals(3, targets.size());
assertTrue(targets.contains(Cayenne.objectForPK(
o1.getObjectContext(),
SetToManyTarget.class,
1)));
assertTrue(targets.contains(Cayenne.objectForPK(
o1.getObjectContext(),
SetToManyTarget.class,
2)));
assertTrue(targets.contains(Cayenne.objectForPK(
o1.getObjectContext(),
SetToManyTarget.class,
3)));
}
@Test
public void testReadToManyPrefetching() throws Exception {
createTestDataSet();
SelectQuery query = new SelectQuery(SetToMany.class, ExpressionFactory
.matchDbExp(SetToMany.ID_PK_COLUMN, new Integer(1)));
query.addPrefetch(SetToMany.TARGETS.disjoint());
SetToMany o1 = (SetToMany) Cayenne.objectForQuery(context, query);
Set targets = o1.getTargets();
assertFalse(((ValueHolder) targets).isFault());
assertNotNull(targets);
assertEquals(3, targets.size());
assertTrue(targets.contains(Cayenne.objectForPK(
o1.getObjectContext(),
SetToManyTarget.class,
1)));
assertTrue(targets.contains(Cayenne.objectForPK(
o1.getObjectContext(),
SetToManyTarget.class,
2)));
assertTrue(targets.contains(Cayenne.objectForPK(
o1.getObjectContext(),
SetToManyTarget.class,
3)));
}
@Test
public void testAddToMany() throws Exception {
createTestDataSet();
SetToMany o1 = Cayenne.objectForPK(context, SetToMany.class, 1);
Set targets = o1.getTargets();
assertNotNull(targets);
assertEquals(3, targets.size());
SetToManyTarget newTarget = o1
.getObjectContext()
.newObject(SetToManyTarget.class);
o1.addToTargets(newTarget);
assertEquals(4, targets.size());
assertTrue(o1.getTargets().contains(newTarget));
assertSame(o1, newTarget.getSetToMany());
o1.getObjectContext().commitChanges();
o1.getObjectContext().performGenericQuery(new RefreshQuery());
assertEquals(4, o1.getTargets().size());
}
@Test
public void testRemoveToMany() throws Exception {
createTestDataSet();
SetToMany o1 = Cayenne.objectForPK(context, SetToMany.class, 1);
Set targets = o1.getTargets();
assertEquals(3, targets.size());
SetToManyTarget target = Cayenne.objectForPK(
o1.getObjectContext(),
SetToManyTarget.class,
2);
o1.removeFromTargets(target);
assertEquals(2, targets.size());
assertFalse(o1.getTargets().contains(target));
assertNull(target.getSetToMany());
o1.getObjectContext().commitChanges();
o1.getObjectContext().performGenericQuery(new RefreshQuery());
assertEquals(2, o1.getTargets().size());
assertFalse(o1.getTargets().contains(target));
}
@Test
public void testAddToManyViaReverse() throws Exception {
createTestDataSet();
SetToMany o1 = Cayenne.objectForPK(context, SetToMany.class, 1);
Set targets = o1.getTargets();
assertNotNull(targets);
assertEquals(3, targets.size());
SetToManyTarget newTarget = o1
.getObjectContext()
.newObject(SetToManyTarget.class);
newTarget.setSetToMany(o1);
assertEquals(4, targets.size());
assertTrue(o1.getTargets().contains(newTarget));
assertSame(o1, newTarget.getSetToMany());
o1.getObjectContext().commitChanges();
o1.getObjectContext().performGenericQuery(new RefreshQuery());
assertEquals(4, o1.getTargets().size());
}
}