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// Sometimes, you won't know the row you're looking for. In this case, you// use a Scanner. This will give you cursor-like interface to the contents// of the table. To set up a Scanner, do like you did above making a Put// and a Get, create a Scan. Adorn it with column names, etc.Scan s = new Scan();s.addColumn(Bytes.toBytes("myLittleFamily"), Bytes.toBytes("someQualifier"));ResultScanner scanner = table.getScanner(s);try { // Scanners return Result instances. // Now, for the actual iteration. One way is to use a while loop like so: for (Result rr = scanner.next(); rr != null; rr = scanner.next()) { // print out the row we found and the columns we were looking for System.out.println("Found row: " + rr); } // The other approach is to use a foreach loop. Scanners are iterable! // for (Result rr : scanner) { // System.out.println("Found row: " + rr); // }} finally { // Make sure you close your scanners when you are done! // Thats why we have it inside a try/finally clause scanner.close();}
