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

Example 26 with QueryResponse

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

the class ChildDiffLoader method findObject.

protected Persistent findObject(Object nodeId) {
    // first do a lookup in ObjectStore; if even a hollow object is found,
    // return it;
    // if not - fetch.
    Persistent object = (Persistent) context.getGraphManager().getNode(nodeId);
    if (object != null) {
        return object;
    }
    ObjectId id = (ObjectId) nodeId;
    // modified
    if (id.isTemporary()) {
        return null;
    }
    // skip context cache lookup, go directly to its channel
    Query query = new ObjectIdQuery((ObjectId) nodeId);
    QueryResponse response = context.getChannel().onQuery(context, query);
    List<?> objects = response.firstList();
    if (objects.size() == 0) {
        throw new CayenneRuntimeException("No object for ID exists: %s", nodeId);
    } else if (objects.size() > 1) {
        throw new CayenneRuntimeException("Expected zero or one object, instead query matched: %d", objects.size());
    }
    return (Persistent) objects.get(0);
}

Example 27 with QueryResponse

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

the class ServerRuntimeTest method testGetDataChannel_CustomModule.

@Test
public void testGetDataChannel_CustomModule() {
    final DataChannel channel = new DataChannel() {

        public EntityResolver getEntityResolver() {
            return null;
        }

        public EventManager getEventManager() {
            return null;
        }

        public QueryResponse onQuery(ObjectContext originatingContext, Query query) {
            return null;
        }

        public GraphDiff onSync(ObjectContext originatingContext, GraphDiff changes, int syncType) {
            return null;
        }
    };
    Module module = binder -> binder.bind(DataChannel.class).toInstance(channel);
    ServerRuntime runtime = new ServerRuntime(Collections.singleton(module));
    assertSame(channel, runtime.getChannel());
}

Example 28 with QueryResponse

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

the class StringIdQueryTest method testPerformQuery_MultipleEntities.

@Test
public void testPerformQuery_MultipleEntities() throws Exception {
    e1Helper.deleteAll();
    e1Helper.insert(3).insert(4);
    e2Helper.deleteAll();
    e2Helper.insert(5).insert(6).insert(7);
    StringIdQuery query = new StringIdQuery("E1:3", "E1:4", "E2:6", "E1:5");
    QueryResponse response = runtime.newContext().performGenericQuery(query);
    assertEquals(2, response.size());
    Set<String> ids = new HashSet<>();
    while (response.next()) {
        @SuppressWarnings("unchecked") List<DataRow> list = (List<DataRow>) response.currentList();
        for (DataRow row : list) {
            ids.add(row.getEntityName() + ":" + row.get("ID"));
        }
    }
    assertEquals(3, ids.size());
    assertTrue(ids.contains("E1:3"));
    assertTrue(ids.contains("E1:4"));
    assertTrue(ids.contains("E2:6"));
}

Example 29 with QueryResponse

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

the class AshwoodEntitySorter method findReflexiveMaster.

protected Object findReflexiveMaster(Persistent object, ObjRelationship toOneRel, String targetEntityName) {
    DbRelationship finalRel = toOneRel.getDbRelationships().get(0);
    ObjectContext context = object.getObjectContext();
    // the method
    if (object.getObjectId().isTemporary()) {
        return null;
    }
    ObjectIdQuery query = new ObjectIdQuery(object.getObjectId(), true, ObjectIdQuery.CACHE);
    QueryResponse response = context.getChannel().onQuery(null, query);
    List<?> result = response.firstList();
    if (result == null || result.size() == 0) {
        return null;
    }
    DataRow snapshot = (DataRow) result.get(0);
    ObjectId id = snapshot.createTargetObjectId(targetEntityName, finalRel);
    // hollow objects
    return (id != null) ? context.getGraphManager().getNode(id) : null;
}

Example 30 with QueryResponse

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

the class ClientServerChannelIT method testPerformQueryPropagationInheritance.

@Test
public void testPerformQueryPropagationInheritance() throws Exception {
    tMtTable1.insert(65, "sub1", "xyz");
    SelectQuery query = new SelectQuery(ClientMtTable1.class);
    QueryResponse response = clientServerChannel.onQuery(null, query);
    assertNotNull(response);
    List<?> results = response.firstList();
    assertNotNull(results);
    assertEquals(1, results.size());
    Object result = results.get(0);
    assertTrue("Result is of wrong type: " + result, result instanceof ClientMtTable1Subclass1);
    ClientMtTable1Subclass1 clientObject = (ClientMtTable1Subclass1) result;
    assertEquals("sub1", clientObject.getGlobalAttribute1());
}