Class LowerCase

java.lang.Object

net.sf.saxon.functions.AbstractFunction

net.sf.saxon.functions.SystemFunction

net.sf.saxon.functions.ScalarSystemFunction

net.sf.saxon.functions.LowerCase

All Implemented Interfaces:

Callable, Function, GroundedValue, Item, Sequence

public class LowerCase
extends ScalarSystemFunction

This class implements the fn:lower-case() function

Constructor Summary

Constructors

Constructor	Description
LowerCase()

Method Summary

Modifier and Type	Method	Description
StringValue	evaluate(Item arg, XPathContext context)	Abstract method that must be supplied in subclasses to perform the evaluation
String	getCompilerName()	Get the (local) name of a class that can be used to generate bytecode for this system function
Sequence	resultWhenEmpty()	Method that may be supplied in subclasses, to indicate the result that is returned when an empty sequence is supplied as the argument value.

Methods inherited from class ScalarSystemFunction

call, makeFunctionCall

Methods inherited from class SystemFunction

dependsOnContextItem, dynamicCall, equals, export, exportAdditionalArguments, exportAttributes, fixArguments, getArity, getCardinality, getContextNode, getDescription, getDetails, getErrorCodeForTypeErrors, getFunctionItemType, getFunctionName, getIntegerBounds, getNetCost, getOperandRoles, getRequiredType, getResultItemType, getResultItemType, getRetainedStaticContext, getSpecialProperties, getStaticBaseUriString, getStreamerName, getUniStringArg, hashCode, importAttributes, isSequenceVariadic, isTrustedResultType, makeCall, makeFunction, makeOptimizedFunctionCall, resultIfEmpty, setArity, setDetails, setRetainedStaticContext, supplyTypeInformation, toShortString, toString, typeCheckCaller

Methods inherited from class AbstractFunction

atomize, deepEquals, effectiveBooleanValue, getAnnotations, getSerialNumber, getUnicodeStringValue, isArray, isMap, makeNewContext, simplify, typeCheck

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface Function

getGenre

Methods inherited from interface GroundedValue

asIterable, concatenate, containsNode, materialize

Methods inherited from interface Item

getLength, getStringValue, head, isStreamed, itemAt, iterate, reduce, subsequence

Methods inherited from interface Sequence

makeRepeatable

Constructor Details

LowerCase

public LowerCase()

Method Details

evaluate

public StringValue evaluate(Item arg,
 XPathContext context)

Description copied from class: ScalarSystemFunction

Abstract method that must be supplied in subclasses to perform the evaluation

Specified by:

evaluate in class ScalarSystemFunction

Parameters:

arg - the supplied argument

context - the dynamic context

Returns:

the result of the evaluation

resultWhenEmpty

public Sequence resultWhenEmpty()

Description copied from class: ScalarSystemFunction

Method that may be supplied in subclasses, to indicate the result that is returned when an empty sequence is supplied as the argument value. The default is to return the empty sequence

Overrides:

resultWhenEmpty in class ScalarSystemFunction

Returns:

the result of evaluation when the supplied argument is an empty sequence

getCompilerName

public String getCompilerName()

Description copied from class: SystemFunction

Get the (local) name of a class that can be used to generate bytecode for this system function

Overrides:

getCompilerName in class SystemFunction

Returns:

the name of a bytecode generation class, or null if there is no bytecode support for this function