Examples with ILinearizeComparator org.apache.hyracks.api.dataflow.value.ILinearizeComparator used on opensource projects

Example 1 with ILinearizeComparator

use of org.apache.hyracks.api.dataflow.value.ILinearizeComparator in project asterixdb by apache.

the class LinearizeComparatorFactoryProvider method addOffset.

private ILinearizeComparatorFactory addOffset(final IBinaryComparatorFactory inst, final boolean ascending) {
    return new ILinearizeComparatorFactory() {

        private static final long serialVersionUID = 1L;

        @Override
        public ILinearizeComparator createBinaryComparator() {
            final ILinearizeComparator bc = (ILinearizeComparator) inst.createBinaryComparator();
            final int dimension = bc.getDimensions();
            if (ascending) {
                return new ILinearizeComparator() {

                    @Override
                    public int compare(byte[] b1, int s1, int l1, byte[] b2, int s2, int l2) throws HyracksDataException {
                        return bc.compare(b1, s1 + 1, l1, b2, s2 + 1, l2);
                    }

                    @Override
                    public int getDimensions() {
                        // TODO Auto-generated method stub
                        return dimension;
                    }
                };
            } else {
                return new ILinearizeComparator() {

                    @Override
                    public int compare(byte[] b1, int s1, int l1, byte[] b2, int s2, int l2) throws HyracksDataException {
                        return -bc.compare(b1, s1 + 1, l1, b2, s2 + 1, l2);
                    }

                    @Override
                    public int getDimensions() {
                        // TODO Auto-generated method stub
                        return dimension;
                    }
                };
            }
        }
    };
}