Class ArrayFunctionSet.ArrayFromSequence

java.lang.Object

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, Pingable, FunctionItem, GroundedValue, Item, Sequence

Enclosing class:

ArrayFunctionSet

public static class ArrayFunctionSet.ArrayFromSequence
extends FoldingFunction
implements Pingable

Implementation of the 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	Description
ArrayFromSequence()

Method Summary

Modifier and Type	Method	Description
ArrayItem	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
void	ping()	Callback function, invoked when a SimpleArrayItem created by this function needs to be converted to an ImmutableArrayItem

Methods inherited from class FoldingFunction

getStreamerName

Methods inherited from class SystemFunction

dependsOnContextItem, dynamicCall, equals, export, exportAdditionalArguments, exportAttributes, fixArguments, getArity, getCardinality, getContextNode, getDescription, getDetails, getElaborator, getErrorCodeForTypeErrors, getFunctionItemType, getFunctionName, getIntegerBounds, getNetCost, getOperandRoles, getRequiredType, getResultItemType, getResultItemType, getRetainedStaticContext, getSpecialProperties, getStaticBaseUriString, getUniStringArg, hashCode, importAttributes, isSequenceVariadic, isTrustedResultType, makeCall, makeFunction, makeFunction40, makeFunctionCall, makeOptimizedFunctionCall, resultIfEmpty, setArity, setDetails, setRetainedStaticContext, supplyTypeInformation, toShortString, toString, typeCheckCaller

Methods inherited from class AbstractFunction

atomize, deepEqual40, deepEquals, effectiveBooleanValue, getAnnotations, getUnicodeStringValue, isArray, isMap, makeNewContext, simplify, typeCheck

Methods inherited from class Object

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

Methods inherited from interface FunctionItem

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

ArrayFromSequence

public ArrayFromSequence()

Method Details

ping

public void ping()

Callback function, invoked when a SimpleArrayItem created by this function needs to be converted to an ImmutableArrayItem

Specified by:

ping in interface Pingable

call

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

Description copied from class: FoldingFunction

Evaluate the expression

Specified by:

call in interface Callable

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 during the evaluation of the expression

getFold

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

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