# Interface OperationHints

All Known Subinterfaces:
  `OperationObserver`

public interface OperationHints
Defines API that allows a DataNode to obtain information about query execution strategy.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `boolean`
  `isIteratedResult()`
  Returns `true` to indicate that any results of a select operation should be returned as a ResultIterator.

- ## Method Details

  - ### isIteratedResult

    boolean isIteratedResult()
    Returns `true` to indicate that any results of a select operation should be returned as a ResultIterator. `false` is returned when the results are expected as a list.