org.apache.cayenne.access.util

## Class IteratedSelectObserver

- java.lang.Object
- - org.apache.cayenne.access.util.DefaultOperationObserver
  - - org.apache.cayenne.access.util.IteratedSelectObserver

- All Implemented Interfaces:
    OperationHints, OperationObserver

      public class IteratedSelectObserver
      extends DefaultOperationObserver

  OperationObserver that is used to track the execution of SelectQueries with results returned as ResultIterator.

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected ResultIterator` | `resultIterator`

    - ### Fields inherited from class org.apache.cayenne.access.util.DefaultOperationObserver

      `globalExceptions, queryExceptions`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `IteratedSelectObserver()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `ResultIterator` | `getResultIterator()`
    `boolean` | `isIteratedResult()` Returns `false`.
    `void` | `nextRows(Query query, List<?> dataRows)` Callback method invoked for each processed ResultSet.
    `void` | `nextRows(Query q, ResultIterator it)` Closes ResultIterator without reading its data.

    - ### Methods inherited from class org.apache.cayenne.access.util.DefaultOperationObserver

      `getGlobalExceptions, getQueryExceptions, hasExceptions, nextBatchCount, nextCount, nextGeneratedRows, nextGlobalException, nextQueryException, printExceptions`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Field Detail

    - #### resultIterator

          protected ResultIterator resultIterator

  - ### Constructor Detail

    - #### IteratedSelectObserver

          public IteratedSelectObserver()

  - ### Method Detail

    - #### isIteratedResult

          public boolean isIteratedResult()

      Description copied from class: `DefaultOperationObserver`
      Returns `false`.
      Specified by:
        `isIteratedResult` in interface `OperationHints`
      Overrides:
        `isIteratedResult` in class `DefaultOperationObserver`

    - #### nextRows

          public void nextRows(Query query,
                      List<?> dataRows)

      Description copied from interface: `OperationObserver`
      Callback method invoked for each processed ResultSet.
      Specified by:
        `nextRows` in interface `OperationObserver`
      Overrides:
        `nextRows` in class `DefaultOperationObserver`

    - #### nextRows

          public void nextRows(Query q,
                      ResultIterator it)

      Description copied from class: `DefaultOperationObserver`
      Closes ResultIterator without reading its data. If you implement a custom subclass, only call super if closing the iterator is what you need.
      Specified by:
        `nextRows` in interface `OperationObserver`
      Overrides:
        `nextRows` in class `DefaultOperationObserver`

    - #### getResultIterator

          public ResultIterator getResultIterator()
                                           throws CayenneException

      Throws:
        `CayenneException`

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