Examples of QueryIndex

org.apache.jackrabbit.oak.spi.QueryIndex
Represents an index. The index should use the data in the filter if possible to speed up reading.
org.apache.jackrabbit.oak.spi.query.QueryIndex
Represents an index. The index should use the data in the filter if possible to speed up reading.
The query engine will pick the index that returns the lowest cost for the given filter conditions.
The index should only use that part of the filter that speeds up data lookup. All other filter conditions should be ignored and not evaluated within this index, because the query engine will in any case evaluate the condition (and join condition), so that evaluating the conditions within the index would actually slow down processing. For example, an index on the property "lastName" should not try to evaluate any other restrictions than those on the property "lastName", even if the query contains other restrictions. For the query "where lastName = 'x' and firstName = 'y'", the query engine will set two filter conditions, one for "lastName" and another for "firstName". The index on "lastName" should not evaluate the condition on "firstName", even thought it will be set in the filter.

Examples of org.apache.jackrabbit.oak.spi.QueryIndex

        if (mk != this.mk) {
            return Collections.emptyList();
        }
        ArrayList<QueryIndex> list = new ArrayList<QueryIndex>();
        for (Index index : indexes.values()) {
            QueryIndex qi = null;
            if (index instanceof PropertyIndex) {
                qi = new PropertyContentIndex(mk, (PropertyIndex) index);
            } else if (index instanceof PrefixIndex) {
                // TODO support prefix indexes?
            }

View Full Code Here

Examples of org.apache.jackrabbit.oak.spi.QueryIndex

        q.prepare();
        return q.executeQuery(mk.getHeadRevision());
    }


    public QueryIndex getBestIndex(FilterImpl filter) {
        QueryIndex best = null;
        double bestCost = Double.MAX_VALUE;
        for (QueryIndex index : getIndexes()) {
            double cost = index.getCost(filter);
            if (cost < bestCost) {
                best = index;

View Full Code Here

Examples of org.apache.jackrabbit.oak.spi.QueryIndex

        q.prepare();
        return q.executeQuery(mk.getHeadRevision());
    }


    public QueryIndex getBestIndex(FilterImpl filter) {
        QueryIndex best = null;
        double bestCost = Double.MAX_VALUE;
        for (QueryIndex index : getIndexes()) {
            double cost = index.getCost(filter);
            if (cost < bestCost) {
                best = index;

View Full Code Here

Examples of org.apache.jackrabbit.oak.spi.QueryIndex

        Tree tree = root.getTree("/");


        tree.setProperty("foo", MemoryValueFactory.INSTANCE.createValue("bar"));
        root.commit(DefaultConflictHandler.OURS);


        QueryIndex index = new LuceneIndex(store, "jcr:system", "oak:lucene");
        FilterImpl filter = new FilterImpl(null);
        filter.restrictPath("/", Filter.PathRestriction.EXACT);
        filter.restrictProperty(
                "foo",
                Operator.EQUAL,
                MemoryValueFactory.INSTANCE.createValue("bar"));
        Cursor cursor = index.query(filter, null);
        assertTrue(cursor.next());
        assertEquals("/", cursor.currentPath());
        assertFalse(cursor.next());
    }

View Full Code Here

Examples of org.apache.jackrabbit.oak.spi.query.QueryIndex

                context.getIndexProvider(), traversalFallback);
    }


    private static QueryIndex getBestIndex(NodeState rootState, Filter filter,
            QueryIndexProvider indexProvider, boolean traversalFallback) {
        QueryIndex best = null;
        if (LOG.isDebugEnabled()) {
            LOG.debug("cost using filter " + filter);
        }


        double bestCost = Double.POSITIVE_INFINITY;

View Full Code Here

Examples of org.apache.jackrabbit.oak.spi.query.QueryIndex

        builder.child("newnode").setProperty("prop", "val");
        NodeState after = builder.getNodeState();


        NodeState indexed = hook.processCommit(before, after);


        QueryIndex queryIndex = new SolrQueryIndex("solr", server, configuration);
        FilterImpl filter = new FilterImpl(null, null);
        filter.restrictPath("/newnode", Filter.PathRestriction.EXACT);
        filter.restrictProperty("prop", Operator.EQUAL,
                PropertyValues.newString("val"));
        Cursor cursor = queryIndex.query(filter, indexed);
        assertNotNull(cursor);
        assertTrue("no results found", cursor.hasNext());
        IndexRow next = cursor.next();
        assertNotNull("first returned item should not be null", next);
        assertEquals("/newnode", next.getPath());

View Full Code Here

Examples of org.apache.jackrabbit.oak.spi.query.QueryIndex

        builder.setProperty("foo", "bar");
        NodeState after = builder.getNodeState();


        NodeState indexed = hook.processCommit(before, after);


        QueryIndex queryIndex = new SolrQueryIndex("solr", server, configuration);
        FilterImpl filter = new FilterImpl(null, null);
        filter.restrictProperty("foo", Operator.EQUAL,
                PropertyValues.newString("bar"));
        Cursor cursor = queryIndex.query(filter, indexed);
        assertNotNull(cursor);
        assertTrue("no results found", cursor.hasNext());
        IndexRow next = cursor.next();
        assertNotNull("first returned item should not be null", next);
        assertEquals("/", next.getPath());

View Full Code Here

Examples of org.apache.jackrabbit.oak.spi.query.QueryIndex


        NodeState after = builder.getNodeState();


        NodeState indexed = hook.processCommit(before, after);


        QueryIndex queryIndex = new SolrQueryIndex("solr", server, configuration);
        FilterImpl filter = new FilterImpl(null, null);
        filter.restrictProperty("foo", Operator.EQUAL,
                PropertyValues.newString("bar"));
        filter.restrictFulltextCondition("bar");
        Cursor cursor = queryIndex.query(filter, indexed);


        Set<String> paths = newHashSet();
        while (cursor.hasNext()) {
            paths.add(cursor.next().getPath());
        }

View Full Code Here

Examples of org.apache.jackrabbit.oak.spi.query.QueryIndex

    protected void setTravesalFallback(boolean traversal) {
        this.traversalFallback = traversal;
    }


    public QueryIndex getBestIndex(QueryImpl query, NodeState rootState, Filter filter) {
        QueryIndex best = null;
        if (LOG.isDebugEnabled()) {
            LOG.debug("cost using filter " + filter);
        }
        List<QueryIndex> indexes = new ArrayList<QueryIndex>(
                indexProvider.getQueryIndexes(rootState));

View Full Code Here

Examples of org.apache.jackrabbit.oak.spi.query.QueryIndex

        builder.setProperty("foo", "bar");
        NodeState after = builder.getNodeState();


        NodeState indexed = HOOK.processCommit(before, after);


        QueryIndex queryIndex = new LuceneIndex(analyzer, null);
        FilterImpl filter = createFilter(NT_BASE);
        filter.restrictPath("/", Filter.PathRestriction.EXACT);
        filter.restrictProperty("foo", Operator.EQUAL,
                PropertyValues.newString("bar"));
        Cursor cursor = queryIndex.query(filter, indexed);
        assertTrue(cursor.hasNext());
        assertEquals("/", cursor.next().getPath());
        assertFalse(cursor.hasNext());
    }

View Full Code Here

0 1 2 3 4 5

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.