net.sf.saxon.expr.sort

Class MergeInstr.MergeKeyMappingFunction

java.lang.Object

net.sf.saxon.expr.sort.MergeInstr.MergeKeyMappingFunction

All Implemented Interfaces:

ContextMappingFunction

Enclosing class:

MergeInstr

public static class MergeInstr.MergeKeyMappingFunction
extends java.lang.Object
implements ContextMappingFunction

Constructor Summary

Constructors

Constructor and Description
MergeKeyMappingFunction(XPathContext baseContext, MergeInstr.MergeSource ms)

Method Summary

Modifier and Type	Method and Description
SequenceIterator	map(XPathContext context) 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

MergeKeyMappingFunction

public MergeKeyMappingFunction(XPathContext baseContext,
                               MergeInstr.MergeSource ms)

Method Detail

map

public SequenceIterator map(XPathContext context)
                     throws XPathException

Description copied from interface: ContextMappingFunction

Map one item to a sequence.

Specified by:

map in interface ContextMappingFunction

Parameters:

context - The processing context. The item to be mapped is the context item identified from this context: the values of position() and last() also relate to the set of items being mapped

Returns:

a SequenceIterator over the sequence of items that the supplied input item maps to

Throws:

XPathException - if a dynamic error is detected