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

Example 16 with ValueHolder

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

the class BaseToManyProperty method writePropertyDirectly.

/**
 * Wraps list in a value holder that performs lazy faulting.
 */
@Override
public void writePropertyDirectly(Object object, Object oldValue, Object newValue) throws PropertyException {
    if (newValue instanceof Fault) {
        super.writePropertyDirectly(object, null, newValue);
    } else {
        // must resolve value holder...
        ValueHolder holder = (ValueHolder) readProperty(object);
        holder.setValueDirectly(newValue);
    }
}

Example 17 with ValueHolder

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

the class ValueHolderProperty method writePropertyDirectly.

@Override
public void writePropertyDirectly(Object object, Object oldValue, Object newValue) throws PropertyException {
    ValueHolder holder = (ValueHolder) accessor.getValue(object);
    if (holder == null) {
        holder = createValueHolder(object);
        accessor.setValue(object, holder);
    }
    holder.setValueDirectly(newValue);
}

Example 18 with ValueHolder

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

the class ValueHolderProperty method ensureValueHolderSet.

/**
 * Checks that an object's ValueHolder field described by this property is set,
 * injecting a ValueHolder if needed.
 */
protected ValueHolder ensureValueHolderSet(Object object) throws PropertyException {
    ValueHolder holder = (ValueHolder) accessor.getValue(object);
    if (holder == null) {
        holder = createValueHolder(object);
        accessor.setValue(object, holder);
    }
    return holder;
}

Example 19 with ValueHolder

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

the class FlattenedPrefetchIT method testManyToMany.

@Test
public void testManyToMany() throws Exception {
    createPrefetchDataSet1();
    SelectQuery q = new SelectQuery(Artist.class);
    q.addPrefetch(Artist.GROUP_ARRAY.disjoint());
    final List<Artist> objects = context.performQuery(q);
    queryInterceptor.runWithQueriesBlocked(new UnitTestClosure() {

        public void execute() {
            assertEquals(3, objects.size());
            for (Artist a : objects) {
                List<ArtGroup> list = a.getGroupArray();
                assertNotNull(list);
                assertFalse("artist's groups not resolved: " + a, ((ValueHolder) list).isFault());
                assertTrue(list.size() > 0);
                for (ArtGroup g : list) {
                    assertEquals(PersistenceState.COMMITTED, g.getPersistenceState());
                }
                // assert no duplicates
                Set<ArtGroup> s = new HashSet<ArtGroup>(list);
                assertEquals(s.size(), list.size());
            }
        }
    });
}

Example 20 with ValueHolder

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

the class FlattenedPrefetchIT method testMultiPrefetch.

@Test
public void testMultiPrefetch() throws Exception {
    createPrefetchDataSet2();
    SelectQuery q = new SelectQuery(Painting.class);
    q.addPrefetch(Painting.TO_ARTIST.disjoint());
    q.addPrefetch(Painting.TO_ARTIST.dot(Artist.GROUP_ARRAY).disjoint());
    final List<Painting> objects = context.performQuery(q);
    queryInterceptor.runWithQueriesBlocked(new UnitTestClosure() {

        public void execute() {
            assertEquals(3, objects.size());
            for (Painting p : objects) {
                Artist a = p.getToArtist();
                assertEquals(PersistenceState.COMMITTED, a.getPersistenceState());
                List<ArtGroup> list = a.getGroupArray();
                assertNotNull(list);
                assertFalse("artist's groups not resolved: " + a, ((ValueHolder) list).isFault());
                assertTrue(list.size() > 0);
                for (ArtGroup g : list) {
                    assertEquals(PersistenceState.COMMITTED, g.getPersistenceState());
                }
                // assert no duplicates
                Set<ArtGroup> s = new HashSet<ArtGroup>(list);
                assertEquals(s.size(), list.size());
            }
        }
    });
}