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

Example 21 with ObjectContext

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

the class NestedDataContextReadIT method testReadToOneRelationship.

@Test
public void testReadToOneRelationship() throws Exception {
    createRelationshipDataSet();
    final ObjectContext child = runtime.newContext(context);
    // test how different object states appear in the child on select
    Painting hollowTargetSrc = Cayenne.objectForPK(context, Painting.class, 33001);
    Artist hollowTarget = hollowTargetSrc.getToArtist();
    Painting modifiedTargetSrc = Cayenne.objectForPK(context, Painting.class, 33002);
    Artist modifiedTarget = modifiedTargetSrc.getToArtist();
    modifiedTarget.setArtistName("M1");
    final Painting deletedTargetSrc = Cayenne.objectForPK(context, Painting.class, 33003);
    Artist deletedTarget = deletedTargetSrc.getToArtist();
    deletedTargetSrc.setToArtist(null);
    context.deleteObjects(deletedTarget);
    Painting committedTargetSrc = Cayenne.objectForPK(context, Painting.class, 33004);
    Artist committedTarget = committedTargetSrc.getToArtist();
    committedTarget.getArtistName();
    final Painting newTargetSrc = Cayenne.objectForPK(context, Painting.class, 33005);
    Artist newTarget = context.newObject(Artist.class);
    newTarget.setArtistName("N1");
    newTargetSrc.setToArtist(newTarget);
    assertEquals(PersistenceState.COMMITTED, hollowTargetSrc.getPersistenceState());
    assertEquals(PersistenceState.COMMITTED, modifiedTargetSrc.getPersistenceState());
    assertEquals(PersistenceState.MODIFIED, deletedTargetSrc.getPersistenceState());
    assertEquals(PersistenceState.COMMITTED, committedTargetSrc.getPersistenceState());
    assertEquals(PersistenceState.MODIFIED, newTargetSrc.getPersistenceState());
    assertEquals(PersistenceState.HOLLOW, hollowTarget.getPersistenceState());
    assertEquals(PersistenceState.MODIFIED, modifiedTarget.getPersistenceState());
    assertEquals(PersistenceState.DELETED, deletedTarget.getPersistenceState());
    assertEquals(PersistenceState.COMMITTED, committedTarget.getPersistenceState());
    assertEquals(PersistenceState.NEW, newTarget.getPersistenceState());
    // run an ordered query, so we can address specific objects directly by index
    SelectQuery<Painting> q = new SelectQuery<>(Painting.class);
    q.addOrdering(Painting.PAINTING_TITLE.asc());
    final List<Painting> childSources = q.select(child);
    assertEquals(5, childSources.size());
    queryInterceptor.runWithQueriesBlocked(() -> {
        Painting childHollowTargetSrc = childSources.get(0);
        assertSame(child, childHollowTargetSrc.getObjectContext());
        Artist childHollowTarget = childHollowTargetSrc.getToArtist();
        assertNotNull(childHollowTarget);
        assertEquals(PersistenceState.HOLLOW, childHollowTarget.getPersistenceState());
        assertSame(child, childHollowTarget.getObjectContext());
        Artist childModifiedTarget = childSources.get(1).getToArtist();
        assertEquals(PersistenceState.COMMITTED, childModifiedTarget.getPersistenceState());
        assertSame(child, childModifiedTarget.getObjectContext());
        assertEquals("M1", childModifiedTarget.getArtistName());
        Painting childDeletedTargetSrc = childSources.get(2);
        // make sure we got the right object...
        assertEquals(deletedTargetSrc.getObjectId(), childDeletedTargetSrc.getObjectId());
        Artist childDeletedTarget = childDeletedTargetSrc.getToArtist();
        assertNull(childDeletedTarget);
        Artist childCommittedTarget = childSources.get(3).getToArtist();
        assertEquals(PersistenceState.COMMITTED, childCommittedTarget.getPersistenceState());
        assertSame(child, childCommittedTarget.getObjectContext());
        Painting childNewTargetSrc = childSources.get(4);
        // make sure we got the right object...
        assertEquals(newTargetSrc.getObjectId(), childNewTargetSrc.getObjectId());
        Artist childNewTarget = childNewTargetSrc.getToArtist();
        assertNotNull(childNewTarget);
        assertEquals(PersistenceState.COMMITTED, childNewTarget.getPersistenceState());
        assertSame(child, childNewTarget.getObjectContext());
        assertEquals("N1", childNewTarget.getArtistName());
    });
}

Example 22 with ObjectContext

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

the class NestedDataContextReadIT method testSelect.

@Test
public void testSelect() throws Exception {
    createArtistsDataSet();
    ObjectContext child = runtime.newContext(context);
    // test how different object states appear in the child on select
    Persistent _new = context.newObject(Artist.class);
    Persistent hollow = Cayenne.objectForPK(context, Artist.class, 33001);
    context.invalidateObjects(hollow);
    DataObject committed = Cayenne.objectForPK(context, Artist.class, 33002);
    Artist modified = Cayenne.objectForPK(context, Artist.class, 33003);
    modified.setArtistName("MODDED");
    DataObject 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());
    List<Artist> objects = new SelectQuery<>(Artist.class).select(child);
    assertEquals("All but NEW object must have been included", 4, objects.size());
    for (Artist next : objects) {
        assertEquals(PersistenceState.COMMITTED, next.getPersistenceState());
        int id = Cayenne.intPKForObject(next);
        if (id == 33003) {
            assertEquals("MODDED", next.getArtistName());
        }
    }
}

Example 23 with ObjectContext

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

the class NestedDataContextValidationIT method testValidateOnCommitToParent.

@Test
public void testValidateOnCommitToParent() {
    context.setValidatingObjectsOnCommit(true);
    ObjectContext childContext = runtime.newContext(context);
    assertTrue("Child context must have inherited the validation flag from parent", ((DataContext) childContext).isValidatingObjectsOnCommit());
    Artist a1 = childContext.newObject(Artist.class);
    try {
        childContext.commitChangesToParent();
        fail("No validation was performed");
    } catch (ValidationException e) {
    // expected
    }
    assertFalse(context.hasChanges());
    a1.setArtistName("T");
    childContext.commitChangesToParent();
}

Example 24 with ObjectContext

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

the class NestedDataContextWriteIT method testCommitChangesToParentDeleted.

@Test
public void testCommitChangesToParentDeleted() throws Exception {
    createArtistsDataSet();
    DataContext context = createDataContext();
    ObjectContext childContext = runtime.newContext(context);
    // make sure we fetch in predictable order
    SelectQuery query = new SelectQuery(Artist.class);
    query.addOrdering(Artist.ARTIST_NAME.asc());
    List<?> objects = childContext.performQuery(query);
    assertEquals(4, objects.size());
    // delete AND modify
    Artist childDeleted = (Artist) objects.get(2);
    childContext.deleteObjects(childDeleted);
    childDeleted.setArtistName("DDD");
    // don't block queries - on delete Cayenne may need to resolve delete rules via
    // fetch
    childContext.commitChangesToParent();
    // * all modified child objects must be in committed state now
    // * all modifications should be propagated to the parent
    // * no actual commit should occur.
    assertEquals(PersistenceState.TRANSIENT, childDeleted.getPersistenceState());
    Artist parentDeleted = (Artist) context.getGraphManager().getNode(childDeleted.getObjectId());
    assertNotNull(parentDeleted);
    assertEquals(PersistenceState.DELETED, parentDeleted.getPersistenceState());
    assertEquals("DDD", parentDeleted.getArtistName());
}

Example 25 with ObjectContext

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

the class NestedDataContextWriteIT method testCommitChangesToParent.

@Test
public void testCommitChangesToParent() throws Exception {
    createArtistsDataSet();
    final DataContext context = createDataContext();
    final ObjectContext childContext = runtime.newContext(context);
    // make sure we fetch in predictable order
    SelectQuery query = new SelectQuery(Artist.class);
    query.addOrdering(Artist.ARTIST_NAME.asc());
    List<?> objects = childContext.performQuery(query);
    assertEquals(4, objects.size());
    final Artist childNew = childContext.newObject(Artist.class);
    childNew.setArtistName("NNN");
    final Artist childModified = (Artist) objects.get(0);
    childModified.setArtistName("MMM");
    final Artist childCommitted = (Artist) objects.get(1);
    final Artist childHollow = (Artist) objects.get(3);
    childContext.invalidateObjects(childHollow);
    queryInterceptor.runWithQueriesBlocked(new UnitTestClosure() {

        public void execute() {
            childContext.commitChangesToParent();
            // * all modified child objects must be in committed state now
            // * all modifications should be propagated to the parent
            // * no actual commit should occur.
            assertEquals(PersistenceState.COMMITTED, childNew.getPersistenceState());
            assertEquals(PersistenceState.COMMITTED, childModified.getPersistenceState());
            assertEquals(PersistenceState.COMMITTED, childCommitted.getPersistenceState());
            assertEquals(PersistenceState.HOLLOW, childHollow.getPersistenceState());
            Artist parentNew = (Artist) context.getGraphManager().getNode(childNew.getObjectId());
            Artist parentModified = (Artist) context.getGraphManager().getNode(childModified.getObjectId());
            Artist parentCommitted = (Artist) context.getGraphManager().getNode(childCommitted.getObjectId());
            Artist parentHollow = (Artist) context.getGraphManager().getNode(childHollow.getObjectId());
            assertNotNull(parentNew);
            assertEquals(PersistenceState.NEW, parentNew.getPersistenceState());
            assertEquals("NNN", parentNew.getArtistName());
            assertNotNull(parentModified);
            assertEquals(PersistenceState.MODIFIED, parentModified.getPersistenceState());
            assertEquals("MMM", parentModified.getArtistName());
            assertNotNull(context.getObjectStore().getChangesByObjectId().get(parentModified.getObjectId()));
            assertNotNull(parentCommitted);
            assertEquals(PersistenceState.COMMITTED, parentCommitted.getPersistenceState());
            assertNotNull(parentHollow);
        // TODO: we can assert that when we figure out how nested "invalidate"
        // should
        // work
        // assertEquals(PersistenceState.HOLLOW,
        // parentHollow.getPersistenceState());
        }
    });
}