Examples of com.inadco.hbl.client.impl.scanner.CompositeKeyRowFilter

com.inadco.hbl.client.impl.scanner.CompositeKeyRowFilter

filter for ranges of individual parts of a composite key.

Let key be a composite key consisting of individual keys (key1,key2...keyn) concatenated together.

Let's also assume that a range is given for each key_i as range_i. Each range corresponds to a mathematical definition of an interval, i.e. it can be (left-, right-) open or closed, and we do not support (left-,right-) unbounded intervals at all.

Then this filter ensures that only rows satisfying individual range scan conditions of each key are getting in.

@author dmitriy

                /*
                 * here, we will venture a little bit into scan spec unravelling
                 * into start and end cuboid keys to figure out our total scan
                 * range.
                 */
                CompositeKeyRowFilter krf = new CompositeKeyRowFilter(scanSpec.getRanges());


                /*
                 * AFAIK this generates closed bounds. Figure the overlapping
                 * range so we have something to go on for splits.
                 */
                byte[] startRow = krf.getCompositeBound(true);
                byte[] endRow = krf.getCompositeBound(false);


                if (startKey == null) {
                    startKey = startRow;
                    endKey = endRow;
                } else {

Related Classes of com.inadco.hbl.client.impl.scanner.CompositeKeyRowFilter

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