net.sf.saxon.ma.arrays

Class ArrayFunctionSet.ArrayFromSequence

java.lang.Object

net.sf.saxon.om.AbstractItem

net.sf.saxon.functions.AbstractFunction

net.sf.saxon.functions.SystemFunction

net.sf.saxon.functions.FoldingFunction

net.sf.saxon.ma.arrays.ArrayFunctionSet.ArrayFromSequence

All Implemented Interfaces:

Callable, Function, GroundedValue, Item, Sequence

Enclosing class:

ArrayFunctionSet

public static class ArrayFunctionSet.ArrayFromSequence
extends FoldingFunction

Implementation of the extension function array:_from-sequence(item()*) => array(*) which is used internally for the implementation of array{} and of the saxon:array extension

Constructor Summary

Constructors

Constructor and Description
ArrayFromSequence()

Method Summary

Modifier and Type	Method and Description
Sequence	call(XPathContext context, Sequence[] arguments) Evaluate the expression
Fold	getFold(XPathContext context, Sequence... additionalArguments) Create the Fold object which is used to perform a streamed evaluation

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

getStreamerName

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, 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

ArrayFromSequence

public ArrayFromSequence()

Method Detail

call

public Sequence call(XPathContext context,
                     Sequence[] arguments)
              throws XPathException

Description copied from class: FoldingFunction

Evaluate the expression

Specified by:

call in interface Callable

Specified by:

call in interface Function

Overrides:

call in class FoldingFunction

Parameters:

context - the dynamic evaluation context

arguments - the values of the arguments, supplied as Sequences

Returns:

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

Throws:

XPathException - if a dynamic error occurs within the function

getFold

public Fold getFold(XPathContext context,
                    Sequence... additionalArguments)
             throws XPathException

Create the Fold object which is used to perform a streamed evaluation

Specified by:

getFold in class FoldingFunction

Parameters:

context - the dynamic evaluation context

additionalArguments - the values of all arguments other than the first.

Returns:

the Fold object used to compute the function

Throws:

XPathException - if a dynamic error occurs