com.saxonica.bytecode.map
Class KeyMappingFunction

java.lang.Object
  com.saxonica.bytecode.map.KeyMappingFunction

All Implemented Interfaces:

MappingFunction<AtomicValue,NodeInfo>

public class KeyMappingFunction
extends Object
implements MappingFunction<AtomicValue,NodeInfo>

Field Summary

DocumentInfo	document
XPathContext	keyContext
KeyManager	keyManager
KeyDefinitionSet	keySet

Constructor Summary

KeyMappingFunction()

KeyMappingFunction(XPathContext keyContext, DocumentInfo document, KeyManager keyManager, KeyDefinitionSet keySet)

Method Summary

SequenceIterator<NodeInfo>

map(AtomicValue 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

Field Detail

keyContext

public XPathContext keyContext

document

public DocumentInfo document

keyManager

public KeyManager keyManager

keySet

public KeyDefinitionSet keySet

Constructor Detail

KeyMappingFunction

public KeyMappingFunction()

KeyMappingFunction

public KeyMappingFunction(XPathContext keyContext,
                          DocumentInfo document,
                          KeyManager keyManager,
                          KeyDefinitionSet keySet)

Method Detail

map

public SequenceIterator<NodeInfo> map(AtomicValue item)
                               throws XPathException

Description copied from interface: MappingFunction

Map one item to a sequence.

Specified by:

map in interface MappingFunction<AtomicValue,NodeInfo>

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