net.sf.saxon.expr

Class Atomizer.AtomizingFunction

java.lang.Object

net.sf.saxon.expr.Atomizer.AtomizingFunction

All Implemented Interfaces:

MappingFunction<Item,AtomicValue>

Enclosing class:

Atomizer

public static class Atomizer.AtomizingFunction
extends Object
implements MappingFunction<Item,AtomicValue>

Implement the mapping function. This is stateless, so there is a singleton instance.

Method Summary

Methods

Modifier and Type	Method and Description
static Atomizer.AtomizingFunction	getInstance() Get the singleton instance
AtomicIterator	map(Item item) Map one item to a sequence.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getInstance

public static Atomizer.AtomizingFunction getInstance()

Get the singleton instance

Returns:

the singleton instance of this mapping function

map

public AtomicIterator map(Item item)
                   throws XPathException

Description copied from interface: MappingFunction

Map one item to a sequence.

Specified by:

map in interface MappingFunction<Item,AtomicValue>

Parameters:

item - 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