Examples with IndexValueCursor org.apache.ignite.internal.cache.query.index.sorted.IndexValueCursor used on opensource projects

Example 1 with IndexValueCursor

use of org.apache.ignite.internal.cache.query.index.sorted.IndexValueCursor in project ignite by apache.

the class GridH2SpatialIndex method findByGeometry.

/**
 * {@inheritDoc}
 */
@Override
public Cursor findByGeometry(TableFilter filter, SearchRow first, SearchRow last, SearchRow intersection) {
    Value v = intersection.getValue(columnIds[0]);
    Geometry g = ((ValueGeometry) v.convertTo(Value.GEOMETRY)).getGeometry();
    int seg = segmentsCount() == 1 ? 0 : H2Utils.context(filter.getSession()).segment();
    GridCursor<IndexRow> cursor = delegate.findByGeometry(seg, filter, g);
    GridCursor<H2Row> h2cursor = new IndexValueCursor<>(cursor, this::mapIndexRow);
    return new H2Cursor(h2cursor);
}

Example 2 with IndexValueCursor

use of org.apache.ignite.internal.cache.query.index.sorted.IndexValueCursor in project ignite by apache.

the class H2TreeIndex method findForSegment.

/**
 * Find rows for the segments (distributed joins).
 *
 * @param bounds Bounds.
 * @param segment Segment.
 * @param qryCtx Index query context.
 * @return Iterator.
 */
public Iterator<H2Row> findForSegment(GridH2RowRangeBounds bounds, int segment, IndexQueryContext qryCtx) {
    SearchRow lower = toSearchRow(bounds.first());
    SearchRow upper = toSearchRow(bounds.last());
    T2<IndexRow, IndexRow> key = prepareIndexKeys(lower, upper);
    try {
        GridCursor<IndexRow> range = queryIndex.find(key.get1(), key.get2(), true, true, segment, qryCtx);
        if (range == null)
            range = IndexValueCursor.EMPTY;
        GridCursor<H2Row> h2cursor = new IndexValueCursor<>(range, this::mapIndexRow);
        H2Cursor cur = new H2Cursor(h2cursor);
        return new CursorIteratorWrapper(cur);
    } catch (IgniteCheckedException e) {
        throw DbException.convert(e);
    }
}

Example 3 with IndexValueCursor

use of org.apache.ignite.internal.cache.query.index.sorted.IndexValueCursor in project ignite by apache.

the class H2TreeIndex method find.

/**
 * {@inheritDoc}
 */
@Override
public Cursor find(Session ses, SearchRow lower, SearchRow upper) {
    assert lower == null || lower instanceof H2Row : lower;
    assert upper == null || upper instanceof H2Row : upper;
    try {
        T2<IndexRow, IndexRow> key = prepareIndexKeys(lower, upper);
        QueryContext qctx = ses != null ? H2Utils.context(ses) : null;
        GridCursor<IndexRow> cursor = queryIndex.find(key.get1(), key.get2(), true, true, segment(qctx), idxQryContext(qctx));
        GridCursor<H2Row> h2cursor = new IndexValueCursor<>(cursor, this::mapIndexRow);
        return new H2Cursor(h2cursor);
    } catch (IgniteCheckedException e) {
        throw DbException.convert(e);
    }
}