code: @Override
      public void writeColumns(Table htable, Object rowKey, Map<String, Object> columns, String columnFamilyName)
              throws IOException
      {
          if (columns != null && !columns.isEmpty())
          {
              Put p = new Put(HBaseUtils.getBytes(rowKey));
              for (String columnName : columns.keySet())
              {
                  p.addColumn(columnFamilyName.getBytes(), Bytes.toBytes(columnName),
                          HBaseUtils.getBytes(columns.get(columnName)));
              }
              htable.put(p);
          }
      }
docs: /*
  (non-Javadoc)
  
  @see
  com.impetus.client.hbase.Writer#writeColumns(org.apache.hadoop.hbase.
  client.Table, java.lang.Object, java.util.Map, java.lang.String)