net.sf.saxon.functions

Class ResolveQName

java.lang.Object

net.sf.saxon.om.AbstractItem

net.sf.saxon.functions.AbstractFunction

net.sf.saxon.functions.SystemFunction

net.sf.saxon.functions.ResolveQName

All Implemented Interfaces:

Callable, Function, GroundedValue, Item, Sequence

public class ResolveQName
extends SystemFunction

This class supports the resolve-QName function in XPath 2.0

Constructor Summary

Constructors

Constructor and Description
ResolveQName()

Method Summary

Modifier and Type	Method and Description
ZeroOrOne<QNameValue>	call(XPathContext context, Sequence[] arguments) Evaluate the expression
static QNameValue	resolveQName(java.lang.CharSequence lexicalQName, NodeInfo element) Static method to resolve a lexical QName against the namespace context of a supplied element node

Methods inherited from class net.sf.saxon.functions.SystemFunction

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

Methods inherited from class net.sf.saxon.functions.AbstractFunction

atomize, deepEquals, effectiveBooleanValue, getAnnotations, getStringValue, getStringValueCS, isArray, isMap, makeNewContext, simplify, typeCheck

Methods inherited from class net.sf.saxon.om.AbstractItem

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

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.saxon.om.Function

iterate

Methods inherited from interface net.sf.saxon.om.Item

head

Methods inherited from interface net.sf.saxon.om.GroundedValue

getLength, head, itemAt, reduce, subsequence

Constructor Detail

ResolveQName

public ResolveQName()

Method Detail

call

public ZeroOrOne<QNameValue> call(XPathContext context,
                                  Sequence[] arguments)
                           throws XPathException

Evaluate the expression

Parameters:

context - the dynamic evaluation context

arguments - the values of the arguments, supplied as SequenceIterators

Returns:

the result of the evaluation, in the form of a SequenceIterator

Throws:

XPathException - if a dynamic error occurs during the evaluation of the expression

resolveQName

public static QNameValue resolveQName(java.lang.CharSequence lexicalQName,
                                      NodeInfo element)
                               throws XPathException

Static method to resolve a lexical QName against the namespace context of a supplied element node

Parameters:

lexicalQName - the lexical QName

element - the element node whose namespace context is to be used

Returns:

the result of resolving the QName

Throws:

XPathException - if the supplied value is not a valid lexical QName, or if its namespace prefix is not in scope