Package net.sf.saxon.expr

Class SequenceMapper

java.lang.Object

net.sf.saxon.expr.SequenceMapper

All Implemented Interfaces:

MappingFunction

public class SequenceMapper
extends Object
implements MappingFunction

SequenceMapper is an implementation of MappingFunction that wraps a function typically supplied as a lambda expression.

NOTE: Java allows a lambda expression to be used wherever a MappingFunction is needed, but C# does not (it's not possible in C# to have a class implementing a delegate). So if a lambda expression is wanted, use an SequenceMapper as a wrapper.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	SequenceMapper.Lambda

Method Summary

Modifier and Type	Method	Description
SequenceIterator	map(Item item)	Map one item to a sequence
static SequenceMapper	of(SequenceMapper.Lambda lambda)

Methods inherited from class java.lang.Object

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

Method Details

of

public static SequenceMapper of(SequenceMapper.Lambda lambda)

map

public SequenceIterator map(Item item)
                     throws XPathException

Map one item to a sequence

Specified by:

map in interface MappingFunction

Parameters:

item - The input item to be mapped.

Returns:

the output sequence.

Throws:

XPathException - if a dynamic error occurs