Examples of QueryMetadata

Examples of org.apache.cayenne.query.QueryMetadata

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     *            objects.
     * @param query Main query used to retrieve data. Must have "pageSize" property set to
     *            a value greater than zero.
     */
    public IncrementalFaultList(DataContext dataContext, Query query) {
        QueryMetadata metadata = query.getMetaData(dataContext.getEntityResolver());
        if (metadata.getPageSize() <= 0) {
            throw new CayenneRuntimeException("Not a paginated query; page size: "
                    + metadata.getPageSize());
        }

        this.dataContext = dataContext;
        this.pageSize = metadata.getPageSize();
        this.rootEntity = metadata.getObjEntity();

        if (rootEntity == null) {
            throw new CayenneRuntimeException(
                    "Pagination is not supported for queries not rooted in an ObjEntity");
        }

        // create an internal query, it is a partial replica of
        // the original query and will serve as a value holder for
        // various parameters
        this.internalQuery = new SelectQuery(rootEntity);
        this.internalQuery.setFetchingDataRows(metadata.isFetchingDataRows());
        this.internalQuery.setPrefetchTree(metadata.getPrefetchTree());

        this.helper = createHelper(metadata);
        this.idWidth = metadata.getDbEntity().getPrimaryKeys().size();

        List<Object> elementsUnsynced = new ArrayList<Object>();
        fillIn(query, elementsUnsynced);
        this.elements = Collections.synchronizedList(elementsUnsynced);
    }
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Examples of org.apache.cayenne.query.QueryMetadata

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                .getClassDescriptor("Artist");
        List dataRows = new ArrayList();
        dataRows.add(new DataRow(4));
        dataRows.add(new DataRow(4));

        QueryMetadata metadata = new MockQueryMetadata() {

            @Override
            public ClassDescriptor getClassDescriptor() {
                return descriptor;
            }
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Examples of org.apache.cayenne.query.QueryMetadata

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                        + Painting.TO_GALLERY_PROPERTY
                        + "."
                        + Gallery.EXHIBIT_ARRAY_PROPERTY).setPhantom(false);
        tree.addPath(Artist.ARTIST_EXHIBIT_ARRAY_PROPERTY).setPhantom(false);

        QueryMetadata metadata = new MockQueryMetadata() {

            @Override
            public ClassDescriptor getClassDescriptor() {
                return descriptor;
            }
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Examples of org.apache.cayenne.query.QueryMetadata

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        // (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);
                            List<Object> rsMapping = info.getResultSetMapping();
                            if (rsMapping == null) {
                                convertSingleObjects(resolver, objects, merger);
                            }
                            else {
                                if (rsMapping.size() == 1) {
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Examples of org.apache.cayenne.query.QueryMetadata

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            engine.addExpectedResult(select, rows1);
            List resultRows = context.performQuery(select);
            assertEquals(1, engine.getRunCount());
            assertEquals(rows1, resultRows);

            QueryMetadata cacheKey = select.getMetaData(context.getEntityResolver());
            assertNull(context.getParentDataDomain().getQueryCache().get(cacheKey));

            assertEquals(rows1, context.getQueryCache().get(cacheKey));

            // second run, must refresh the cache
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Examples of org.apache.cayenne.query.QueryMetadata

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            engine.addExpectedResult(select, rows1);
            List resultRows = context.performQuery(select);
            assertEquals(1, engine.getRunCount());
            assertEquals(rows1, resultRows);

            QueryMetadata cacheKey = select.getMetaData(context.getEntityResolver());

            assertEquals(rows1, context.getParentDataDomain().getQueryCache().get(
                    cacheKey));

            assertNull(context.getQueryCache().get(cacheKey));
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Examples of org.apache.cayenne.query.QueryMetadata

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            engine.addExpectedResult(select, rows1);
            List resultRows = context.performQuery(select);
            assertEquals(1, engine.getRunCount());
            assertEquals(2, resultRows.size());
            assertTrue(resultRows.get(0) instanceof DataObject);
            QueryMetadata cacheKey = select.getMetaData(context.getEntityResolver());
            assertNull(context.getParentDataDomain().getQueryCache().get(cacheKey));

            assertEquals(resultRows, context.getQueryCache().get(cacheKey));

            // second run, must refresh the cache
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Examples of org.apache.cayenne.query.QueryMetadata

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     *
     * @deprecated Since 1.2. This is a utility method that handles a very specific case.
     *             It shouldn't be in DataContext.
     */
    public void prefetchRelationships(SelectQuery query, List objects) {
        QueryMetadata metadata = query.getMetaData(getEntityResolver());
        Collection prefetches = metadata.getPrefetchTree() != null ? query
                .getPrefetchTree()
                .nonPhantomNodes() : Collections.EMPTY_LIST;

        if (objects == null || objects.size() == 0 || prefetches.size() == 0) {
            return;
        }

        ObjEntity entity = metadata.getObjEntity();
        Iterator prefetchesIt = prefetches.iterator();
        while (prefetchesIt.hasNext()) {
            PrefetchTreeNode prefetch = (PrefetchTreeNode) prefetchesIt.next();
            String path = prefetch.getPath();
            if (path.indexOf('.') >= 0) {
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Examples of org.apache.cayenne.query.QueryMetadata

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    @Override
    public String createSqlString() throws Exception {

        String sqlString = super.createSqlString();

        QueryMetadata info = getQuery().getMetaData(getEntityResolver());
        if (info.getFetchLimit() > 0) {
            sqlString = "SELECT * FROM ("
                    + sqlString
                    + ") WHERE rownum <= "
                    + info.getFetchLimit();
        }

        return sqlString;
    }
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Examples of org.apache.openjpa.meta.QueryMetaData

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    /**
     * Parse @NamedQuery.
     */
    private void parseNamedQueries(AnnotatedElement el, NamedQuery... queries) {
        QueryMetaData meta;
        for (NamedQuery query : queries) {
            if (StringUtils.isEmpty(query.name()))
                throw new MetaDataException(_loc.get("no-query-name", el));
            if (StringUtils.isEmpty(query.query()))
                throw new MetaDataException(_loc.get("no-query-string",
                    query.name(), el));

            if (_log.isTraceEnabled())
                _log.trace(_loc.get("parse-query", query.name()));

            meta = getRepository().getCachedQueryMetaData(null, query.name());
            if (meta != null) {
                if (_log.isWarnEnabled())
                    _log.warn(_loc.get("dup-query", query.name(), el));
                return;
            }

            meta = getRepository().addQueryMetaData(null, query.name());
            meta.setQueryString(query.query());
            meta.setLanguage(JPQLParser.LANG_JPQL);
            for (QueryHint hint : query.hints())
                meta.addHint(hint.name(), hint.value());

            meta.setSource(getSourceFile(), (el instanceof Class) ? el : null,
                meta.SRC_ANNOTATIONS);
            if (isMetaDataMode())
                meta.setSourceMode(MODE_META);
            else if (isMappingMode())
                meta.setSourceMode(MODE_MAPPING);
            else
                meta.setSourceMode(MODE_QUERY);
        }
    }
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