## Uses of Interface
org.apache.cayenne.access.OperationHints

- Packages that use OperationHints
  Package | Description
  --- | ---
  org.apache.cayenne.access | Contains classes that make up Cayenne ORM stack.
  org.apache.cayenne.access.util |

- - ### Uses of OperationHints in org.apache.cayenne.access

    Subinterfaces of OperationHints in org.apache.cayenne.access
    Modifier and Type | Interface and Description
    --- | ---
    `interface` | `OperationObserver` Defines a set of callback methods that allow `QueryEngine` to pass back query results and notify caller about exceptions.

  - ### Uses of OperationHints in org.apache.cayenne.access.util

    Classes in org.apache.cayenne.access.util that implement OperationHints
    Modifier and Type | Class and Description
    --- | ---
    `class` | `DefaultOperationObserver` Simple implementation of OperationObserver interface.
    `class` | `DoNothingOperationObserver` A very simple observer that does nothing with provided data, and rethrows any reported exceptions.
    `class` | `IteratedSelectObserver` OperationObserver that is used to track the execution of SelectQueries with results returned as ResultIterator.

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