LetClausePull

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

```
public class LetClausePull
extends TuplePull
```
Implements the changes to a tuple stream effected by the Let clause in a FLWOR expression

Constructor Summary

Constructors
Constructor Description

LetClausePull(TuplePull base, LetClause letClause)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`close()`	Close the tuple stream, indicating that although not all tuples have been read, no further tuples are required and resources can be released
`boolean`	`nextTuple(XPathContext context)`	Move on to the next tuple.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - LetClausePull
```
public LetClausePull(TuplePull base,
                     LetClause letClause)
```
- 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
  - close
```
public void close()
```
    Close the tuple stream, indicating that although not all tuples have been read, no further tuples are required and resources can be released
    
    Overrides:
    
    close in class TuplePull