aioaneid/uzaygezen

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uzaygezen's Issues

Infinite recursion when trying to create a range query

Created a CompactHilbertCurve with the following specifications:

MultiDimensionalSpec[bitsPerDimension=[3, 8, 6, 3, 5, 6, 4, 4, 4, 2, 
2],sumBitsPerDimension=47,maxBitsPerDimension=8]

Then trying to build query range indexes for these ranges:

int ranges[11][2] = [[0, 1], [1, 2], [0, 35], [0, 4], [0, 29], [0, 46], [0, 
13], [0, 13], [0, 8], [0, 3], [0, 2]]

Each pair in the array represents min and max value. Code snippet to build the 
query range is as below:

List<LongRange> criterion = new ArrayList<LongRange>(ranges.length);
        for (int i = 0; i < ranges.length; ++i) {
            criterion.add(LongRange.of(ranges[i][0], ranges[i][1]));
        }

        LongContent zero = new LongContent(0L);
        LongContent one = new LongContent(1L);
        FilterCombiner<RangeListFilter<Long, LongContent, LongRange>, LongContent, LongRange> combiner = ListConcatCombiner.unbounded();
        RegionInspector<RangeListFilter<Long, LongContent, LongRange>, LongContent> regionInspector = SimpleRegionInspector.create(
                ImmutableList.of(criterion),
                one, RangeListFilter.creator(Level.FINE, LongRangeHome.INSTANCE),
                LongRangeHome.INSTANCE, zero);

//      for (int i = 1; i < 9; ++i) {
        int i = 9;
            QueryBuilder<RangeListFilter<Long, LongContent, LongRange>, LongRange> queryBuilder = BacktrackingQueryBuilder.create(
                    regionInspector, combiner, i, true, LongRangeHome.INSTANCE, TestUtils.ZERO_LONG_CONTENT);
            m_compactHCurve.accept(new ZoomingSpaceVisitorAdapter(m_compactHCurve, queryBuilder));
            Query<RangeListFilter<Long, LongContent, LongRange>, LongRange> query = queryBuilder.get();
            Assert.assertFalse(query.isPotentialOverSelectivity());
            List<FilteredIndexRange<RangeListFilter<Long, LongContent, LongRange>, LongRange>> queryRanges = query.getFilteredIndexRanges();
            System.out.println("i="+i);
            for(FilteredIndexRange<RangeListFilter<Long, LongContent, LongRange>, LongRange> range : queryRanges){
                System.out.println("\t" + range);
            }
//      }


The code goes into infinite loop in  public void accept(ZoomingNavigator 
visitor) method.

Am I doing something wrong? I have created a BTree from the indexes generated 
by the CompactHilberCurve class and want to use the ranges to query the tree to 
get matching data items from the query hyper-rectangle.

Please help.

Original issue reported on code.google.com by [email protected] on 31 Jul 2014 at 6:41