addContent(this.r, HConstants.CATALOG_FAMILY);
Filter newFilter = new PrefixFilter(Bytes.toBytes("ab"));
Scan scan = new Scan();
scan.setFilter(newFilter);
rowPrefixFilter(scan);
RowFilterInterface oldFilter = new PrefixRowFilter(Bytes.toBytes("ab"));
scan = new Scan();
scan.setOldFilter(oldFilter);
rowPrefixFilter(scan);
byte[] stopRow = Bytes.toBytes("bbc");