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package org.apache.cayenne.util;
import org.apache.cayenne.Cayenne;
import org.apache.cayenne.ObjectContext;
import org.apache.cayenne.ObjectId;
import org.apache.cayenne.PersistenceState;
import org.apache.cayenne.Persistent;
import org.apache.cayenne.access.DataContext;
import org.apache.cayenne.configuration.server.ServerRuntime;
import org.apache.cayenne.di.Inject;
import org.apache.cayenne.query.ObjectIdQuery;
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.testdo.testmap.Painting;
import org.apache.cayenne.unit.di.DataChannelInterceptor;
import org.apache.cayenne.unit.di.UnitTestClosure;
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 static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertSame;
@UseServerRuntime(CayenneProjects.TESTMAP_PROJECT)
public class ShallowMergeOperationIT extends ServerCase {
@Inject
private ServerRuntime runtime;
@Inject
private DataContext context;
@Inject
private DataChannelInterceptor queryInterceptor;
@Inject
private DBHelper dbHelper;
private TableHelper tArtist;
@Before
public void setUp() throws Exception {
tArtist = new TableHelper(dbHelper, "ARTIST");
tArtist.setColumns("ARTIST_ID", "ARTIST_NAME");
}
private void createArtistsDataSet() throws Exception {
tArtist.insert(33001, "artist1");
tArtist.insert(33002, "artist2");
tArtist.insert(33003, "artist3");
tArtist.insert(33004, "artist4");
}
@Test
public void testMerge_Relationship() throws Exception {
ObjectContext childContext = runtime.newContext(context);
final ShallowMergeOperation op = new ShallowMergeOperation(childContext);
Artist _new = context.newObject(Artist.class);
final Painting _newP = context.newObject(Painting.class);
_new.addToPaintingArray(_newP);
queryInterceptor.runWithQueriesBlocked(new UnitTestClosure() {
public void execute() {
Painting painting = op.merge(_newP);
assertEquals(PersistenceState.COMMITTED, painting.getPersistenceState());
assertNotNull(painting.getToArtist());
assertEquals(PersistenceState.COMMITTED, painting
.getToArtist()
.getPersistenceState());
}
});
}
@Test
public void testMerge_NoOverride() throws Exception {
createArtistsDataSet();
ObjectContext childContext = runtime.newContext(context);
final ShallowMergeOperation op = new ShallowMergeOperation(childContext);
int modifiedId = 33003;
final Artist modified = (Artist) Cayenne.objectForQuery(
context,
new ObjectIdQuery(new ObjectId(
"Artist",
Artist.ARTIST_ID_PK_COLUMN,
modifiedId)));
final Artist peerModified = (Artist) Cayenne.objectForQuery(
childContext,
new ObjectIdQuery(new ObjectId(
"Artist",
Artist.ARTIST_ID_PK_COLUMN,
modifiedId)));
modified.setArtistName("M1");
peerModified.setArtistName("M2");
assertEquals(PersistenceState.MODIFIED, modified.getPersistenceState());
assertEquals(PersistenceState.MODIFIED, peerModified.getPersistenceState());
queryInterceptor.runWithQueriesBlocked(new UnitTestClosure() {
public void execute() {
Persistent peerModified2 = op.merge(modified);
assertSame(peerModified, peerModified2);
assertEquals(
PersistenceState.MODIFIED,
peerModified2.getPersistenceState());
assertEquals("M2", peerModified.getArtistName());
assertEquals("M1", modified.getArtistName());
}
});
}
@Test
public void testMerge_PersistenceStates() throws Exception {
createArtistsDataSet();
final ObjectContext childContext = runtime.newContext(context);
final ShallowMergeOperation op = new ShallowMergeOperation(childContext);
final Artist _new = context.newObject(Artist.class);
final Artist hollow = Cayenne.objectForPK(context, Artist.class, 33001);
context.invalidateObjects(hollow);
final Artist committed = Cayenne.objectForPK(context, Artist.class, 33002);
final Artist modified = Cayenne.objectForPK(context, Artist.class, 33003);
modified.setArtistName("M1");
final Artist deleted = Cayenne.objectForPK(context, Artist.class, 33004);
context.deleteObjects(deleted);
assertEquals(PersistenceState.HOLLOW, hollow.getPersistenceState());
assertEquals(PersistenceState.COMMITTED, committed.getPersistenceState());
assertEquals(PersistenceState.MODIFIED, modified.getPersistenceState());
assertEquals(PersistenceState.DELETED, deleted.getPersistenceState());
assertEquals(PersistenceState.NEW, _new.getPersistenceState());
// now check how objects in different state behave
queryInterceptor.runWithQueriesBlocked(new UnitTestClosure() {
public void execute() {
Persistent newPeer = op.merge(_new);
assertEquals(_new.getObjectId(), newPeer.getObjectId());
assertEquals(PersistenceState.COMMITTED, newPeer.getPersistenceState());
assertSame(childContext, newPeer.getObjectContext());
assertSame(context, _new.getObjectContext());
Persistent hollowPeer = op.merge(hollow);
assertEquals(PersistenceState.HOLLOW, hollowPeer.getPersistenceState());
assertEquals(hollow.getObjectId(), hollowPeer.getObjectId());
assertSame(childContext, hollowPeer.getObjectContext());
assertSame(context, hollow.getObjectContext());
Persistent committedPeer = op.merge(committed);
assertEquals(
PersistenceState.COMMITTED,
committedPeer.getPersistenceState());
assertEquals(committed.getObjectId(), committedPeer.getObjectId());
assertSame(childContext, committedPeer.getObjectContext());
assertSame(context, committed.getObjectContext());
Artist modifiedPeer = op.merge(modified);
assertEquals(
PersistenceState.COMMITTED,
modifiedPeer.getPersistenceState());
assertEquals(modified.getObjectId(), modifiedPeer.getObjectId());
assertEquals("M1", modifiedPeer.getArtistName());
assertSame(childContext, modifiedPeer.getObjectContext());
assertSame(context, modified.getObjectContext());
Persistent deletedPeer = op.merge(deleted);
assertEquals(
PersistenceState.COMMITTED,
deletedPeer.getPersistenceState());
assertEquals(deleted.getObjectId(), deletedPeer.getObjectId());
assertSame(childContext, deletedPeer.getObjectContext());
assertSame(context, deleted.getObjectContext());
}
});
}
}