CompiledAxisMappingFunction

java.lang.Object
- com.saxonica.ee.bytecode.map.CompiledAxisMappingFunction

All Implemented Interfaces:

MappingFunction
```
public abstract class CompiledAxisMappingFunction
extends java.lang.Object
implements MappingFunction
```
Abstract MappingFunction class that must be passed to a MappingIterator. This implementation of MappingFunction acts as a superclass for generated bytecode classes used to implement path expressions where the RHS is an AxisExpression: these can be evaluated without creating a new context or FocusIterator.

- Constructor Summary
  
  Constructors
  Constructor Description
  
  CompiledAxisMappingFunction()
- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  abstract AxisIterator map(Item origin)
  Map one item to a sequence.
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - CompiledAxisMappingFunction
```
public CompiledAxisMappingFunction()
```
- Method Detail
  - map
```
public abstract AxisIterator map(Item origin)
                          throws XPathException
```
    Description copied from interface: MappingFunction
    
    Map one item to a sequence.
    
    Specified by:
    
    map in interface MappingFunction
    
    Parameters:
    
    origin - The item to be mapped.
    
    Returns:
    
    one of the following: (a) a SequenceIterator over the sequence of items that the supplied input item maps to, or (b) null if it maps to an empty sequence.
    
    Throws:
    
    XPathException - if a dynamic error occurs