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package org.apache.cayenne.access;
import org.apache.cayenne.PersistenceState;
import org.apache.cayenne.di.Inject;
import org.apache.cayenne.exp.ExpressionFactory;
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.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 java.sql.Types;
import java.util.Date;
import java.util.List;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNotSame;
import static org.junit.Assert.assertNull;
/**
* Test suite covering possible scenarios of refreshing updated objects. This includes
* refreshing relationships and attributes changed outside of Cayenne with and without
* prefetching.
*/
@UseServerRuntime(CayenneProjects.TESTMAP_PROJECT)
public class DataContextRefreshingIT extends ServerCase {
@Inject
protected DataContext context;
@Inject
protected DBHelper dbHelper;
@Inject
protected DataChannelInterceptor queryInterceptor;
protected TableHelper tArtist;
protected TableHelper tPainting;
@Before
public void setUp() throws Exception {
tArtist = new TableHelper(dbHelper, "ARTIST");
tArtist.setColumns("ARTIST_ID", "ARTIST_NAME");
tPainting = new TableHelper(dbHelper, "PAINTING");
tPainting.setColumns(
"PAINTING_ID",
"PAINTING_TITLE",
"ARTIST_ID",
"ESTIMATED_PRICE").setColumnTypes(
Types.INTEGER,
Types.VARCHAR,
Types.BIGINT,
Types.DECIMAL);
}
protected void createSingleArtistDataSet() throws Exception {
tArtist.insert(5, "artist2");
}
protected void createSingleArtistAndPaintingDataSet() throws Exception {
createSingleArtistDataSet();
tPainting.insert(4, "p", 5, 1000);
}
protected void createSingleArtistAndUnrelatedPaintingDataSet() throws Exception {
createSingleArtistDataSet();
tPainting.insert(4, "p", null, 1000);
}
protected void createTwoArtistsAndPaintingDataSet() throws Exception {
tArtist.insert(5, "artist2");
tArtist.insert(6, "artist3");
tPainting.insert(4, "p", 5, 1000);
}
@Test
public void testRefetchRootWithUpdatedAttributes() throws Exception {
createSingleArtistDataSet();
String nameBefore = "artist2";
String nameAfter = "not an artist";
SelectQuery queryBefore = new SelectQuery(
Artist.class,
ExpressionFactory.matchExp("artistName", nameBefore));
Artist artist = (Artist) context.performQuery(queryBefore).get(0);
assertEquals(nameBefore, artist.getArtistName());
assertEquals(1, tArtist.update().set("ARTIST_NAME", nameAfter).execute());
// fetch into the same context
List<Artist> artists = context.performQuery(queryBefore);
assertEquals(0, artists.size());
SelectQuery queryAfter = new SelectQuery(
Artist.class,
ExpressionFactory.matchExp("artistName", nameAfter));
artist = (Artist) context.performQuery(queryAfter).get(0);
assertNotNull(artist);
assertEquals(nameAfter, artist.getArtistName());
}
@Test
public void testRefetchRootWithNullifiedToOne() throws Exception {
createSingleArtistAndPaintingDataSet();
Painting painting = (Painting) context.performQuery(
new SelectQuery(Painting.class)).get(0);
assertNotNull(painting.getToArtist());
assertEquals("artist2", painting.getToArtist().getArtistName());
assertEquals(1, tPainting.update().set("ARTIST_ID", null, Types.BIGINT).execute());
// select without prefetch
painting = (Painting) context
.performQuery(new SelectQuery(Painting.class))
.get(0);
assertNotNull(painting);
assertNull(painting.getToArtist());
}
@Test
public void testRefetchRootWithChangedToOneTarget() throws Exception {
createTwoArtistsAndPaintingDataSet();
Painting painting = (Painting) context.performQuery(
new SelectQuery(Painting.class)).get(0);
Artist artistBefore = painting.getToArtist();
assertNotNull(artistBefore);
assertEquals("artist2", artistBefore.getArtistName());
assertEquals(1, tPainting.update().set("ARTIST_ID", 6).execute());
// select without prefetch
painting = (Painting) context
.performQuery(new SelectQuery(Painting.class))
.get(0);
assertNotNull(painting);
assertEquals("artist3", painting.getToArtist().getArtistName());
}
@Test
public void testRefetchRootWithNullToOneTargetChangedToNotNull() throws Exception {
createSingleArtistAndUnrelatedPaintingDataSet();
Painting painting = (Painting) context.performQuery(
new SelectQuery(Painting.class)).get(0);
assertNull(painting.getToArtist());
assertEquals(1, tPainting.update().set("ARTIST_ID", 5).execute());
// select without prefetch
painting = (Painting) context
.performQuery(new SelectQuery(Painting.class))
.get(0);
assertNotNull(painting);
assertEquals("artist2", painting.getToArtist().getArtistName());
}
@Test
public void testRefetchRootWithDeletedToMany() throws Exception {
createSingleArtistAndPaintingDataSet();
Artist artist = (Artist) context.performQuery(new SelectQuery(Artist.class)).get(
0);
assertEquals(artist.getPaintingArray().size(), 1);
assertEquals(1, tPainting
.delete()
.where(Painting.PAINTING_ID_PK_COLUMN, 4)
.execute());
// select without prefetch
artist = (Artist) context.performQuery(new SelectQuery(Artist.class)).get(0);
assertEquals(artist.getPaintingArray().size(), 1);
// select using relationship prefetching
SelectQuery query = new SelectQuery(Artist.class);
query.addPrefetch(Artist.PAINTING_ARRAY.disjoint());
artist = (Artist) context.performQuery(query).get(0);
assertEquals(0, artist.getPaintingArray().size());
}
@Test
public void testRefetchRootWithAddedToMany() throws Exception {
createSingleArtistDataSet();
Artist artist = (Artist) context.performQuery(new SelectQuery(Artist.class)).get(
0);
assertEquals(artist.getPaintingArray().size(), 0);
tPainting.insert(5, "p", 5, 1000);
// select without prefetch
SelectQuery query = new SelectQuery(Artist.class);
artist = (Artist) context.performQuery(query).get(0);
assertEquals(artist.getPaintingArray().size(), 0);
// select using relationship prefetching
query.addPrefetch(Artist.PAINTING_ARRAY.disjoint());
artist = (Artist) context.performQuery(query).get(0);
assertEquals(artist.getPaintingArray().size(), 1);
}
@Test
public void testInvalidateRootWithUpdatedAttributes() throws Exception {
createSingleArtistDataSet();
String nameBefore = "artist2";
String nameAfter = "not an artist";
Artist artist = (Artist) context.performQuery(new SelectQuery(Artist.class)).get(
0);
assertNotNull(artist);
assertEquals(nameBefore, artist.getArtistName());
// update via DataNode directly
assertEquals(1, tArtist.update().set("ARTIST_NAME", nameAfter).execute());
context.invalidateObjects(artist);
assertEquals(nameAfter, artist.getArtistName());
}
@Test
public void testInvalidateRootWithNullifiedToOne() throws Exception {
createSingleArtistAndPaintingDataSet();
Painting painting = (Painting) context.performQuery(
new SelectQuery(Painting.class)).get(0);
assertNotNull(painting.getToArtist());
assertEquals("artist2", painting.getToArtist().getArtistName());
assertEquals(1, tPainting.update().set("ARTIST_ID", null, Types.BIGINT).execute());
context.invalidateObjects(painting);
assertNull(painting.getToArtist());
}
@Test
public void testInvalidateRootWithChangedToOneTarget() throws Exception {
createTwoArtistsAndPaintingDataSet();
Painting painting = (Painting) context.performQuery(
new SelectQuery(Painting.class)).get(0);
Artist artistBefore = painting.getToArtist();
assertNotNull(artistBefore);
assertEquals("artist2", artistBefore.getArtistName());
assertEquals(1, tPainting.update().set("ARTIST_ID", 6).execute());
context.invalidateObjects(painting);
assertNotSame(artistBefore, painting.getToArtist());
assertEquals("artist3", painting.getToArtist().getArtistName());
}
@Test
public void testInvalidateRootWithNullToOneTargetChangedToNotNull() throws Exception {
createSingleArtistAndUnrelatedPaintingDataSet();
Painting painting = (Painting) context.performQuery(
new SelectQuery(Painting.class)).get(0);
assertNull(painting.getToArtist());
assertEquals(1, tPainting.update().set("ARTIST_ID", 5).execute());
context.invalidateObjects(painting);
assertNotNull(painting.getToArtist());
assertEquals("artist2", painting.getToArtist().getArtistName());
}
@Test
public void testInvalidateRootWithDeletedToMany() throws Exception {
createSingleArtistAndPaintingDataSet();
Artist artist = (Artist) context.performQuery(new SelectQuery(Artist.class)).get(
0);
assertEquals(artist.getPaintingArray().size(), 1);
assertEquals(1, tPainting.delete().execute());
context.invalidateObjects(artist);
assertEquals(artist.getPaintingArray().size(), 0);
}
@Test
public void testInvaliateRootWithAddedToMany() throws Exception {
createSingleArtistDataSet();
Artist artist = (Artist) context.performQuery(new SelectQuery(Artist.class)).get(
0);
assertEquals(artist.getPaintingArray().size(), 0);
tPainting.insert(4, "p", 5, 1000);
assertEquals(artist.getPaintingArray().size(), 0);
context.invalidateObjects(artist);
assertEquals(artist.getPaintingArray().size(), 1);
}
@Test
public void testInvalidateThenModify() throws Exception {
createSingleArtistDataSet();
final Artist artist = (Artist) context
.performQuery(new SelectQuery(Artist.class))
.get(0);
assertNotNull(artist);
context.invalidateObjects(artist);
assertEquals(PersistenceState.HOLLOW, artist.getPersistenceState());
int queries = queryInterceptor.runWithQueryCounter(new UnitTestClosure() {
public void execute() {
// this must trigger a fetch
artist.setArtistName("new name");
}
});
assertEquals(1, queries);
assertEquals(PersistenceState.MODIFIED, artist.getPersistenceState());
}
@Test
public void testModifyHollow() throws Exception {
createSingleArtistAndPaintingDataSet();
Painting painting = (Painting) context.performQuery(
new SelectQuery(Painting.class)).get(0);
final Artist artist = painting.getToArtist();
assertEquals(PersistenceState.HOLLOW, artist.getPersistenceState());
assertNull(artist.readPropertyDirectly("artistName"));
int queries = queryInterceptor.runWithQueryCounter(new UnitTestClosure() {
public void execute() {
// this must trigger a fetch
artist.setDateOfBirth(new Date());
}
});
assertEquals(1, queries);
assertEquals(PersistenceState.MODIFIED, artist.getPersistenceState());
assertNotNull(artist.readPropertyDirectly("artistName"));
}
}