问如何批量删除hbase中的多行？

EN

user_1
user_2
user_3
...
user_9999999

   Table ht = TEST_UTIL.getConnection().getTable("my_table");
    long noOfDeletedRows = 0L;
    Batch.Call<BulkDeleteService, BulkDeleteResponse> callable =
      new Batch.Call<BulkDeleteService, BulkDeleteResponse>() {
      ServerRpcController controller = new ServerRpcController();
      BlockingRpcCallback<BulkDeleteResponse> rpcCallback =
        new BlockingRpcCallback<BulkDeleteResponse>();

      public BulkDeleteResponse call(BulkDeleteService service) throws IOException {
        Builder builder = BulkDeleteRequest.newBuilder();
        builder.setScan(ProtobufUtil.toScan(scan));
        builder.setDeleteType(deleteType);
        builder.setRowBatchSize(rowBatchSize);
        if (timeStamp != null) {
          builder.setTimestamp(timeStamp);
        }
        service.delete(controller, builder.build(), rpcCallback);
        return rpcCallback.get();
      }
    };
    Map<byte[], BulkDeleteResponse> result = ht.coprocessorService(BulkDeleteService.class, scan
        .getStartRow(), scan.getStopRow(), callable);
    for (BulkDeleteResponse response : result.values()) {
      noOfDeletedRows += response.getRowsDeleted();
    }
    ht.close();