Package net.sf.saxon.expr.flwor

## Class CountClausePull

- java.lang.Object
- - net.sf.saxon.expr.flwor.TuplePull
  - - net.sf.saxon.expr.flwor.CountClausePull

-     public class CountClausePull
      extends TuplePull

  A tuple stream that implements a "count" clause in an XQuery 3.0 FLWOR expression

- - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `CountClausePull​(TuplePull base, CountClause countClause)` |

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `boolean` | `nextTuple​(XPathContext context)` | Move on to the next tuple.

    - ### Methods inherited from class net.sf.saxon.expr.flwor.TuplePull

      `close`

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

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

- - ### Constructor Detail

    - #### CountClausePull

          public CountClausePull​(TuplePull base,
                                 CountClause countClause)

  - ### Method Detail

    - #### nextTuple

          public boolean nextTuple​(XPathContext context)
                            throws XPathException

      Move on to the next tuple. Before returning, this method must set all the variables corresponding to the "returned" tuple in the local stack frame associated with the context object
      Specified by:
        `nextTuple` in class `TuplePull`
      Parameters:
        `context` - the dynamic evaluation context
      Returns:
        true if another tuple has been generated; false if the tuple stream is exhausted. If the method returns false, the values of the local variables corresponding to this tuple stream are undefined.
      Throws:
        `XPathException`