code: @Override
      public void add(final int index, final TableOperation element) {
          Utility.assertNotNull("element", element);
  
          this.checkSingleQueryPerBatch(element, this.size());
  
          if (element.getOperationType() == TableOperationType.RETRIEVE) {
              this.lockToPartitionKey(((QueryTableOperation) element).getPartitionKey());
          }
          else {
              this.lockToPartitionKey(element.getEntity().getPartitionKey());
          }
  
          super.add(index, element);
      }
docs: Adds the table operation at the specified index in the batch operation <code>ArrayList</code>.
  
  @param index
  An <code>int</code> which represents the index in the batch operation <code>ArrayList</code> to add
  the table operation at.
  @param element
  The {@link TableOperation} to add to the batch operation.