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

Example 21 with ValueHolder

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

the class DataContextPrefetchIT method testPrefetchToMany_WithQualfier.

@Test
public void testPrefetchToMany_WithQualfier() throws Exception {
    createTwoArtistsAndTwoPaintingsDataSet();
    Map<String, Object> params = new HashMap<>();
    params.put("name1", "artist2");
    params.put("name2", "artist3");
    Expression e = ExpressionFactory.exp("artistName = $name1 or artistName = $name2");
    SelectQuery<Artist> q = new SelectQuery<>("Artist", e.params(params));
    q.addPrefetch(Artist.PAINTING_ARRAY.disjoint());
    final List<Artist> artists = context.select(q);
    queryInterceptor.runWithQueriesBlocked(new UnitTestClosure() {

        public void execute() {
            assertEquals(2, artists.size());
            Artist a1 = artists.get(0);
            List<?> toMany = (List<?>) a1.readPropertyDirectly(Artist.PAINTING_ARRAY.getName());
            assertNotNull(toMany);
            assertFalse(((ValueHolder) toMany).isFault());
            assertEquals(1, toMany.size());
            Painting p1 = (Painting) toMany.get(0);
            assertEquals("p_" + a1.getArtistName(), p1.getPaintingTitle());
            Artist a2 = artists.get(1);
            List<?> toMany2 = (List<?>) a2.readPropertyDirectly(Artist.PAINTING_ARRAY.getName());
            assertNotNull(toMany2);
            assertFalse(((ValueHolder) toMany2).isFault());
            assertEquals(1, toMany2.size());
            Painting p2 = (Painting) toMany2.get(0);
            assertEquals("p_" + a2.getArtistName(), p2.getPaintingTitle());
        }
    });
}

Example 22 with ValueHolder

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

the class DataContextPrefetchIT method testPrefetchToMany_ViaProperty.

@Test
public void testPrefetchToMany_ViaProperty() throws Exception {
    createTwoArtistsAndTwoPaintingsDataSet();
    SelectQuery<Artist> q = new SelectQuery<Artist>(Artist.class);
    q.addPrefetch(Artist.PAINTING_ARRAY.disjoint());
    final List<Artist> artists = context.select(q);
    queryInterceptor.runWithQueriesBlocked(new UnitTestClosure() {

        public void execute() {
            assertEquals(2, artists.size());
            for (int i = 0; i < 2; i++) {
                Artist a = artists.get(i);
                List<?> toMany = (List<?>) a.readPropertyDirectly("paintingArray");
                assertNotNull(toMany);
                assertFalse(((ValueHolder) toMany).isFault());
                assertEquals(1, toMany.size());
                Painting p = (Painting) toMany.get(0);
                assertEquals("Invalid prefetched painting:" + p, "p_" + a.getArtistName(), p.getPaintingTitle());
            }
        }
    });
}

Example 23 with ValueHolder

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

the class DataContextPrefetchIT method testPrefetchToManyOnJoinTableJoinedPrefetch.

/**
 * Test that a to-many relationship is initialized when a target entity has
 * a compound PK only partially involved in relationship.
 */
@Test
public void testPrefetchToManyOnJoinTableJoinedPrefetch() throws Exception {
    createTwoArtistsWithExhibitsDataSet();
    SelectQuery q = new SelectQuery(Artist.class);
    q.addPrefetch(Artist.ARTIST_EXHIBIT_ARRAY.joint());
    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("artistExhibitArray");
            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 24 with ValueHolder

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

the class DataContextPrefetchIT method testPrefetch_ToManyNoReverse.

/**
 * Test that a to-many relationship is initialized when there is no inverse
 * relationship
 */
@Test
public void testPrefetch_ToManyNoReverse() throws Exception {
    createTwoArtistsAndTwoPaintingsDataSet();
    ObjEntity paintingEntity = context.getEntityResolver().getObjEntity(Painting.class);
    ObjRelationship relationship = paintingEntity.getRelationship("toArtist");
    paintingEntity.removeRelationship("toArtist");
    try {
        SelectQuery<Artist> q = new SelectQuery<>(Artist.class);
        q.addPrefetch(Artist.PAINTING_ARRAY.disjoint());
        final List<Artist> result = context.performQuery(q);
        queryInterceptor.runWithQueriesBlocked(new UnitTestClosure() {

            public void execute() {
                assertFalse(result.isEmpty());
                Artist a1 = result.get(0);
                List<?> toMany = (List<?>) a1.readPropertyDirectly("paintingArray");
                assertNotNull(toMany);
                assertFalse(((ValueHolder) toMany).isFault());
            }
        });
    } finally {
        paintingEntity.addRelationship(relationship);
    }
}

Example 25 with ValueHolder

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

the class DataContextPrefetchIT method testPrefetchToManyNoQualifier.

@Test
public void testPrefetchToManyNoQualifier() throws Exception {
    createTwoArtistsAndTwoPaintingsDataSet();
    SelectQuery q = new SelectQuery(Artist.class);
    q.addPrefetch(Artist.PAINTING_ARRAY.disjoint());
    final List<Artist> artists = context.performQuery(q);
    queryInterceptor.runWithQueriesBlocked(new UnitTestClosure() {

        public void execute() {
            assertEquals(2, artists.size());
            for (int i = 0; i < 2; i++) {
                Artist a = artists.get(i);
                List<?> toMany = (List<?>) a.readPropertyDirectly("paintingArray");
                assertNotNull(toMany);
                assertFalse(((ValueHolder) toMany).isFault());
                assertEquals(1, toMany.size());
                Painting p = (Painting) toMany.get(0);
                assertEquals("Invalid prefetched painting:" + p, "p_" + a.getArtistName(), p.getPaintingTitle());
            }
        }
    });
}