com.saxonica.ee.bytecode.map

Class 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 and Description
CompiledAxisMappingFunction()

Method Summary

Modifier and Type	Method and 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