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* to you under the Apache License, Version 2.0 (the
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package org.apache.cayenne;
import java.util.Collections;
import java.util.List;
import org.apache.art.Artist;
import org.apache.art.Painting;
import org.apache.cayenne.access.DataContext;
import org.apache.cayenne.exp.ExpressionFactory;
import org.apache.cayenne.map.ObjEntity;
import org.apache.cayenne.query.SelectQuery;
import org.apache.cayenne.unit.CayenneCase;
import org.apache.cayenne.unit.CaseDataFactory;
public class CayenneDataObjectInCtxtTest extends CayenneCase {
@Override
protected void setUp() throws Exception {
super.setUp();
deleteTestData();
}
public void testDoubleRegistration() {
DataContext context = createDataContext();
DataObject object = new Artist();
assertNull(object.getObjectId());
context.registerNewObject(object);
ObjectId tempID = object.getObjectId();
assertNotNull(tempID);
assertTrue(tempID.isTemporary());
assertSame(context, object.getObjectContext());
// double registration in the same context should be quietly ignored
context.registerNewObject(object);
assertSame(tempID, object.getObjectId());
assertSame(object, context.getGraphManager().getNode(tempID));
// registering in another context should throw an exception
DataContext anotherContext = createDataContext();
try {
anotherContext.registerNewObject(object);
fail("registerNewObject should've failed - object is already in another context");
}
catch (IllegalStateException e) {
// expected
}
}
public void testObjEntity() {
DataContext context = createDataContext();
Artist a = new Artist();
assertNull(a.getObjEntity());
context.registerNewObject(a);
ObjEntity e = a.getObjEntity();
assertNotNull(e);
assertEquals("Artist", e.getName());
Painting p = new Painting();
assertNull(p.getObjEntity());
context.registerNewObject(p);
ObjEntity e1 = p.getObjEntity();
assertNotNull(e1);
assertEquals("Painting", e1.getName());
}
public void testCommitChangesInBatch() {
DataContext context = createDataContext();
Artist a1 = (Artist) context.newObject("Artist");
a1.setArtistName("abc1");
Artist a2 = (Artist) context.newObject("Artist");
a2.setArtistName("abc2");
Artist a3 = (Artist) context.newObject("Artist");
a3.setArtistName("abc3");
context.commitChanges();
List artists = context.performQuery(new SelectQuery(Artist.class));
assertEquals(3, artists.size());
}
public void testSetObjectId() {
DataContext context = createDataContext();
Artist o1 = new Artist();
assertNull(o1.getObjectId());
context.registerNewObject(o1);
assertNotNull(o1.getObjectId());
}
public void testStateTransToNew() {
DataContext context = createDataContext();
Artist o1 = new Artist();
assertEquals(PersistenceState.TRANSIENT, o1.getPersistenceState());
context.registerNewObject(o1);
assertEquals(PersistenceState.NEW, o1.getPersistenceState());
}
public void testStateNewToCommitted() {
DataContext context = createDataContext();
Artist o1 = new Artist();
o1.setArtistName("a");
context.registerNewObject(o1);
assertEquals(PersistenceState.NEW, o1.getPersistenceState());
context.commitChanges();
assertEquals(PersistenceState.COMMITTED, o1.getPersistenceState());
}
public void testStateCommittedToModified() {
DataContext context = createDataContext();
Artist o1 = new Artist();
o1.setArtistName("a");
context.registerNewObject(o1);
context.commitChanges();
assertEquals(PersistenceState.COMMITTED, o1.getPersistenceState());
o1.setArtistName(o1.getArtistName() + "_1");
assertEquals(PersistenceState.MODIFIED, o1.getPersistenceState());
}
public void testStateModifiedToCommitted() {
DataContext context = createDataContext();
Artist o1 = newSavedArtist(context);
o1.setArtistName(o1.getArtistName() + "_1");
assertEquals(PersistenceState.MODIFIED, o1.getPersistenceState());
context.commitChanges();
assertEquals(PersistenceState.COMMITTED, o1.getPersistenceState());
}
public void testStateCommittedToDeleted() {
DataContext context = createDataContext();
Artist o1 = new Artist();
o1.setArtistName("a");
context.registerNewObject(o1);
context.commitChanges();
assertEquals(PersistenceState.COMMITTED, o1.getPersistenceState());
context.deleteObject(o1);
assertEquals(PersistenceState.DELETED, o1.getPersistenceState());
}
public void testStateDeletedToTransient() {
DataContext context = createDataContext();
Artist o1 = newSavedArtist(context);
context.deleteObject(o1);
assertEquals(PersistenceState.DELETED, o1.getPersistenceState());
context.commitChanges();
assertEquals(PersistenceState.TRANSIENT, o1.getPersistenceState());
assertFalse(context.getGraphManager().registeredNodes().contains(o1));
assertNull(o1.getObjectContext());
}
public void testSetDataContext() {
DataContext context = createDataContext();
Artist o1 = new Artist();
assertNull(o1.getObjectContext());
context.registerNewObject(o1);
assertSame(context, o1.getObjectContext());
}
public void testFetchByAttr() throws Exception {
DataContext context = createDataContext();
String artistName = "artist with one painting";
CaseDataFactory.createArtistWithPainting(artistName, new String[] {}, false);
SelectQuery q = new SelectQuery("Artist", ExpressionFactory.matchExp(
"artistName",
artistName));
List artists = context.performQuery(q);
assertEquals(1, artists.size());
Artist o1 = (Artist) artists.get(0);
assertNotNull(o1);
assertEquals(artistName, o1.getArtistName());
}
public void testUniquing() throws Exception {
DataContext context = createDataContext();
String artistName = "unique artist with no paintings";
CaseDataFactory.createArtistWithPainting(artistName, new String[] {}, false);
Artist a1 = fetchArtist(context, artistName);
Artist a2 = fetchArtist(context, artistName);
assertNotNull(a1);
assertNotNull(a2);
assertEquals(1, context.getGraphManager().registeredNodes().size());
assertSame(a1, a2);
}
public void testSnapshotVersion1() {
DataContext context = createDataContext();
Artist artist = (Artist) context.newObject("Artist");
assertEquals(DataObject.DEFAULT_VERSION, artist.getSnapshotVersion());
// test versions set on commit
artist.setArtistName("abc");
context.commitChanges();
DataRow cachedSnapshot = context.getObjectStore().getCachedSnapshot(
artist.getObjectId());
assertNotNull(cachedSnapshot);
assertEquals(cachedSnapshot.getVersion(), artist.getSnapshotVersion());
}
public void testSnapshotVersion2() {
DataContext context = createDataContext();
newSavedArtist(context);
// test versions assigned on fetch... clean up domain cache
// before doing it
getDomain().getEventManager().removeAllListeners(
getDomain().getSharedSnapshotCache().getSnapshotEventSubject());
getDomain().getSharedSnapshotCache().clear();
context = getDomain().createDataContext();
List artists = context.performQuery(new SelectQuery(Artist.class));
Artist artist = (Artist) artists.get(0);
assertFalse(DataObject.DEFAULT_VERSION == artist.getSnapshotVersion());
assertEquals(context
.getObjectStore()
.getCachedSnapshot(artist.getObjectId())
.getVersion(), artist.getSnapshotVersion());
}
public void testSnapshotVersion3() {
DataContext context = createDataContext();
Artist artist = newSavedArtist(context);
// test versions assigned after update
long oldVersion = artist.getSnapshotVersion();
artist.setArtistName(artist.getArtistName() + "---");
context.commitChanges();
assertFalse(oldVersion == artist.getSnapshotVersion());
assertEquals(context
.getObjectStore()
.getCachedSnapshot(artist.getObjectId())
.getVersion(), artist.getSnapshotVersion());
}
/**
* Tests a condition when user substitutes object id of a new object instead of
* setting replacement. This is demonstrated here -
* http://objectstyle.org/cayenne/lists/cayenne-user/2005/01/0210.html
*/
public void testObjectsCommittedManualOID() {
DataContext context = createDataContext();
Artist object = context.newObject(Artist.class);
object.setArtistName("ABC1");
assertEquals(PersistenceState.NEW, object.getPersistenceState());
// do a manual id substitution
object.setObjectId(new ObjectId(
"Artist",
Artist.ARTIST_ID_PK_COLUMN,
new Integer(3)));
context.commitChanges();
assertEquals(PersistenceState.COMMITTED, object.getPersistenceState());
// refetch
context.invalidateObjects(Collections.singleton(object));
Artist object2 = DataObjectUtils.objectForPK(context, Artist.class, 3);
assertNotNull(object2);
assertEquals("ABC1", object2.getArtistName());
}
private Artist newSavedArtist(DataContext context) {
Artist o1 = new Artist();
o1.setArtistName("a");
o1.setDateOfBirth(new java.sql.Date(System.currentTimeMillis()));
context.registerNewObject(o1);
context.commitChanges();
return o1;
}
private Artist fetchArtist(DataContext context, String name) {
SelectQuery q = new SelectQuery("Artist", ExpressionFactory.matchExp(
"artistName",
name));
List ats = context.performQuery(q);
return (ats.size() > 0) ? (Artist) ats.get(0) : null;
}
}