Examples with ValueHolder org.apache.cayenne.ValueHolder used on opensource projects

Example 26 with ValueHolder

use of org.apache.cayenne.ValueHolder in project cayenne by apache.

the class DataContextPrefetchIT method testPrefetchToMany_OnJoinTableDisjoinedPrefetch.

/**
 * Test that a to-many relationship is initialized when a target entity has
 * a compound PK only partially involved in relationship.
 */
@Test
public void testPrefetchToMany_OnJoinTableDisjoinedPrefetch() throws Exception {
    createTwoArtistsWithExhibitsDataSet();
    SelectQuery q = new SelectQuery(Artist.class);
    q.addPrefetch(Artist.ARTIST_EXHIBIT_ARRAY.disjoint());
    q.addOrdering(Artist.ARTIST_NAME.asc());
    final List<Artist> artists = context.performQuery(q);
    queryInterceptor.runWithQueriesBlocked(new UnitTestClosure() {

        public void execute() {
            assertEquals(2, artists.size());
            Artist a1 = artists.get(0);
            assertEquals("artist2", a1.getArtistName());
            List<?> toMany = (List<?>) a1.readPropertyDirectly(Artist.ARTIST_EXHIBIT_ARRAY.getName());
            assertNotNull(toMany);
            assertFalse(((ValueHolder) toMany).isFault());
            assertEquals(2, toMany.size());
            ArtistExhibit artistExhibit = (ArtistExhibit) toMany.get(0);
            assertEquals(PersistenceState.COMMITTED, artistExhibit.getPersistenceState());
            assertSame(a1, artistExhibit.getToArtist());
            Artist a2 = artists.get(1);
            assertEquals("artist3", a2.getArtistName());
            List<?> toMany2 = (List<?>) a2.readPropertyDirectly(Artist.ARTIST_EXHIBIT_ARRAY.getName());
            assertNotNull(toMany2);
            assertFalse(((ValueHolder) toMany2).isFault());
            assertEquals(3, toMany2.size());
            ArtistExhibit artistExhibit2 = (ArtistExhibit) toMany2.get(0);
            assertEquals(PersistenceState.COMMITTED, artistExhibit2.getPersistenceState());
            assertSame(a2, artistExhibit2.getToArtist());
        }
    });
}

Example 27 with ValueHolder

use of org.apache.cayenne.ValueHolder in project cayenne by apache.

the class DataContextPrefetchMultistepIT method testToManyToOne_EmptyToMany.

@Test
public void testToManyToOne_EmptyToMany() throws Exception {
    createGalleriesAndArtists();
    SelectQuery<Gallery> q = SelectQuery.query(Gallery.class, Gallery.GALLERY_NAME.eq("gallery2"));
    q.addPrefetch(Gallery.PAINTING_ARRAY.disjoint());
    q.addPrefetch(Gallery.PAINTING_ARRAY.dot(Painting.TO_ARTIST).disjoint());
    List<Gallery> galleries = context.select(q);
    assertEquals(1, galleries.size());
    Gallery g2 = galleries.get(0);
    // this relationship should be resolved
    assertTrue(g2.readPropertyDirectly(Gallery.PAINTING_ARRAY.getName()) instanceof ValueHolder);
    List<Painting> exhibits = (List<Painting>) g2.readPropertyDirectly(Gallery.PAINTING_ARRAY.getName());
    assertFalse(((ValueHolder) exhibits).isFault());
    assertEquals(0, exhibits.size());
}

Example 28 with ValueHolder

use of org.apache.cayenne.ValueHolder in project cayenne by apache.

the class DataContextPrefetchMultistepIT method testToManyToOne_EmptyToMany_NoRootQualifier.

@Test
public void testToManyToOne_EmptyToMany_NoRootQualifier() throws Exception {
    createGalleriesAndArtists();
    SelectQuery<Gallery> q = SelectQuery.query(Gallery.class);
    q.addPrefetch(Gallery.PAINTING_ARRAY.disjoint());
    q.addPrefetch(Gallery.PAINTING_ARRAY.dot(Painting.TO_ARTIST).disjoint());
    List<Gallery> galleries = context.select(q);
    assertEquals(3, galleries.size());
    Gallery g = galleries.get(0);
    // this relationship should be resolved
    assertTrue(g.readPropertyDirectly(Gallery.PAINTING_ARRAY.getName()) instanceof ValueHolder);
    List<Painting> exhibits = (List<Painting>) g.readPropertyDirectly(Gallery.PAINTING_ARRAY.getName());
    assertFalse(((ValueHolder) exhibits).isFault());
    assertEquals(0, exhibits.size());
}

Example 29 with ValueHolder

use of org.apache.cayenne.ValueHolder in project cayenne by apache.

the class DataContextPrefetchMultistepIT method testToManyToManyFirstStepResolved.

@Test
public void testToManyToManyFirstStepResolved() throws Exception {
    createTwoArtistsWithExhibitsDataSet();
    Expression e = ExpressionFactory.exp("galleryName = $name");
    SelectQuery<Gallery> q = SelectQuery.query(Gallery.class, e.params(Collections.singletonMap("name", "gallery2")));
    q.addPrefetch("exhibitArray");
    q.addPrefetch("exhibitArray.artistExhibitArray");
    List<Gallery> galleries = context.select(q);
    assertEquals(1, galleries.size());
    Gallery g2 = galleries.get(0);
    // this relationship should be resolved
    assertTrue(g2.readPropertyDirectly("exhibitArray") instanceof ValueHolder);
    List<Exhibit> exhibits = (List<Exhibit>) g2.readPropertyDirectly("exhibitArray");
    assertFalse(((ValueHolder) exhibits).isFault());
    assertEquals(1, exhibits.size());
    Exhibit e1 = exhibits.get(0);
    assertEquals(PersistenceState.COMMITTED, e1.getPersistenceState());
    // this to-many must also be resolved
    assertTrue(e1.readPropertyDirectly("artistExhibitArray") instanceof ValueHolder);
    List<ArtistExhibit> aexhibits = (List<ArtistExhibit>) e1.readPropertyDirectly("artistExhibitArray");
    assertFalse(((ValueHolder) aexhibits).isFault());
    assertEquals(1, exhibits.size());
    ArtistExhibit ae1 = aexhibits.get(0);
    assertEquals(PersistenceState.COMMITTED, ae1.getPersistenceState());
}

Example 30 with ValueHolder

use of org.apache.cayenne.ValueHolder in project cayenne by apache.

the class DataContextDisjointByIdPrefetch_ExtrasIT method testFlattenedRelationship.

@Test
public void testFlattenedRelationship() throws Exception {
    createBagWithTwoBoxesAndPlentyOfBallsDataSet();
    SelectQuery query = new SelectQuery(Bag.class);
    query.addPrefetch(Bag.BALLS.disjointById());
    final List<Bag> result = context.performQuery(query);
    queryInterceptor.runWithQueriesBlocked(new UnitTestClosure() {

        public void execute() {
            assertFalse(result.isEmpty());
            Bag b1 = result.get(0);
            List<Ball> balls = (List<Ball>) b1.readPropertyDirectly(Bag.BALLS.getName());
            assertNotNull(balls);
            assertFalse(((ValueHolder) balls).isFault());
            assertEquals(6, balls.size());
            List<Integer> volumes = new ArrayList<Integer>();
            for (Ball b : balls) {
                assertEquals(PersistenceState.COMMITTED, b.getPersistenceState());
                volumes.add(b.getThingVolume());
            }
            assertTrue(volumes.containsAll(Arrays.asList(10, 20, 30, 40, 20, 40)));
        }
    });
}