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 - if any error occurs