Examples of org.apache.cayenne.QueryResponse

org.apache.cayenne.QueryResponse
} else { int[] updateCounts = response.currentUpdateCount(); // ... } }
In case the structure of the result is known, and only a single list or an update count is expected, there is a simpler API to access them:
```
 QueryResponse response = context.performGenericQuery(query); List list = response.firstList(); int[] count = response.firstUpdateCount(); 
```
@since 1.2

            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: " + nodeId);
        }
        else if (objects.size() > 1) {

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        // ensure that originating query is wrapped to include the right cache key....
        this.paginatedQuery = query;


        // select directly from the channel, bypassing the context. Otherwise our query
        // wrapper can be intercepted incorrectly
        QueryResponse response = context.getChannel().onQuery(context, query);


        List firstPage = response.firstList();


        // sanity check
        if (firstPage.size() > pageSize) {
            throw new IllegalArgumentException("Returned page size ("
                    + firstPage.size()

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        return eventManager;
    }


    public QueryResponse onQuery(ObjectContext context, Query query) {


        QueryResponse response = (QueryResponse) send(
                new QueryMessage(query),
                QueryResponse.class);


        // if needed, register objects in provided context, rewriting the response
        // (assuming all lists are mutable)


        if (context != null) {


            EntityResolver resolver = context.getEntityResolver();
            QueryMetadata info = query.getMetaData(resolver);


            if (!info.isFetchingDataRows()) {


                response.reset();


                while (response.next()) {
                    if (response.isList()) {


                        List objects = response.currentList();


                        if (!objects.isEmpty()) {


                            DeepMergeOperation merger = new DeepMergeOperation(context);

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    public void testPerformQueryObjectIDInjection() throws Exception {
        tMtTable1.insert(55, "g1", "s1");


        Query query = new SelectQuery("MtTable1");
        QueryResponse response = clientServerChannel.onQuery(null, query);


        assertNotNull(response);


        List<?> results = response.firstList();


        assertNotNull(results);
        assertEquals(1, results.size());


        Object result = results.get(0);

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        };


        tMtTable3.insert(1, bytes, "abc", 4);


        Query query = new SelectQuery("MtTable3");
        QueryResponse response = clientServerChannel.onQuery(null, query);


        assertNotNull(response);


        List<?> results = response.firstList();


        assertNotNull(results);
        assertEquals(1, results.size());


        Object result = results.get(0);

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    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);

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        assertEquals(new Long(2l), notUpdated);


        String ejbql = "UPDATE Painting AS p SET p.paintingTitle = 'XX' WHERE p.paintingTitle = 'P1'";
        EJBQLQuery query = new EJBQLQuery(ejbql);


        QueryResponse result = context.performGenericQuery(query);


        int[] count = result.firstUpdateCount();
        assertNotNull(count);
        assertEquals(1, count.length);
        assertEquals(1, count[0]);


        notUpdated = Cayenne.objectForQuery(context, check);

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        assertEquals(new Long(2l), notUpdated);


        String ejbql = "UPDATE Painting AS p SET p.paintingTitle = 'XX'";
        EJBQLQuery query = new EJBQLQuery(ejbql);


        QueryResponse result = context.performGenericQuery(query);


        int[] count = result.firstUpdateCount();
        assertNotNull(count);
        assertEquals(1, count.length);
        assertEquals(2, count[0]);


        notUpdated = Cayenne.objectForQuery(context, check);

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        assertEquals(new Long(2l), notUpdated);


        String ejbql = "UPDATE Painting AS p SET p.estimatedPrice = NULL";
        EJBQLQuery query = new EJBQLQuery(ejbql);


        QueryResponse result = context.performGenericQuery(query);


        int[] count = result.firstUpdateCount();
        assertNotNull(count);
        assertEquals(1, count.length);
        assertEquals(2, count[0]);


        notUpdated = Cayenne.objectForQuery(context, check);

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        assertEquals(new Long(2l), notUpdated);


        String ejbql = "UPDATE Painting AS p SET p.paintingTitle = 'XX', p.estimatedPrice = 1";
        EJBQLQuery query = new EJBQLQuery(ejbql);


        QueryResponse result = context.performGenericQuery(query);


        int[] count = result.firstUpdateCount();
        assertNotNull(count);
        assertEquals(1, count.length);
        assertEquals(2, count[0]);


        notUpdated = Cayenne.objectForQuery(context, check);

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