package filters;
// cc ColumnPaginationFilterExample Example paginating through columns in a row
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HBaseConfiguration;
import org.apache.hadoop.hbase.client.HTable;
import org.apache.hadoop.hbase.client.Result;
import org.apache.hadoop.hbase.client.ResultScanner;
import org.apache.hadoop.hbase.client.Scan;
import org.apache.hadoop.hbase.filter.ColumnPaginationFilter;
import org.apache.hadoop.hbase.filter.Filter;
import util.HBaseHelper;
import java.io.IOException;
public class ColumnPaginationFilterExample {
public static void main(String[] args) throws IOException {
Configuration conf = HBaseConfiguration.create();
HBaseHelper helper = HBaseHelper.getHelper(conf);
helper.dropTable("testtable");
helper.createTable("testtable", "colfam1");
System.out.println("Adding rows to table...");
helper.fillTable("testtable", 1, 10, 30, 2, true, "colfam1");
HTable table = new HTable(conf, "testtable");
// vv ColumnPaginationFilterExample
Filter filter = new ColumnPaginationFilter(5, 15);
Scan scan = new Scan();
scan.setFilter(filter);
ResultScanner scanner = table.getScanner(scan);
// ^^ ColumnPaginationFilterExample
System.out.println("Results of scan:");
// vv ColumnPaginationFilterExample
for (Result result : scanner) {
System.out.println(result);
}
scanner.close();
// ^^ ColumnPaginationFilterExample
}
}