TraceClausePush

java.lang.Object
- net.sf.saxon.expr.flwor.TuplePush
- - net.sf.saxon.expr.flwor.TraceClausePush

```
public class TraceClausePush
extends TuplePush
```
This class represents the tuple stream delivered as the output of a trace clause in a FLWOR expression. It does not change the values of any variables in the tuple stream, but merely notifies the TraceListener whenever a new tuple is available.

Constructor Summary

Constructors
Constructor	Description
`TraceClausePush(Outputter outputter, TuplePush destination, TraceClause traceClause, Clause baseClause)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`close()`	Close the tuple stream, indicating that no more tuples will be supplied
`void`	`processTuple(XPathContext context)`	Notify the availability of the next tuple.

Methods inherited from class net.sf.saxon.expr.flwor.TuplePush
getOutputter

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

- Constructor Detail
  - TraceClausePush
```
public TraceClausePush(Outputter outputter,
                       TuplePush destination,
                       TraceClause traceClause,
                       Clause baseClause)
```
- Method Detail
  - processTuple
```
public void processTuple(XPathContext context)
                  throws XPathException
```
    Description copied from class: TuplePush
    
    Notify the availability of the next tuple. Before calling this method, the supplier of the tuples must set all the variables corresponding to the supplied tuple in the local stack frame associated with the context object
    
    Specified by:
    
    processTuple in class TuplePush
    
    Parameters:
    
    context - the dynamic evaluation context
    
    Throws:
    
    XPathException - if a dynamic error occurs
  - close
```
public void close()
           throws XPathException
```
    Description copied from class: TuplePush
    
    Close the tuple stream, indicating that no more tuples will be supplied
    
    Overrides:
    
    close in class TuplePush
    
    Throws:
    
    XPathException - if a dynamic error occurs