Package com.saxonica.functions.qt4

Class ElementToMapPlan

java.lang.Object

net.sf.saxon.functions.AbstractFunction

net.sf.saxon.functions.SystemFunction

com.saxonica.functions.qt4.ElementToMapPlan

All Implemented Interfaces:

Callable, IFunctionWithRetainedParameterNames, FunctionItem, GroundedValue, Item, Sequence

public class ElementToMapPlan
extends SystemFunction

Implementation of the fn:element-to-map-plan function proposed for 4.0

Field Summary

Fields

Modifier and Type	Field	Description
static ItemType	ATTRIBUTE_LAYOUT
static ItemType	ELEMENT_LAYOUT
static ItemType	RETURN_TYPE

Constructor Summary

Constructors

Constructor	Description
ElementToMapPlan()

Method Summary

Modifier and Type	Method	Description
MapItem	call(XPathContext context, Sequence[] arguments)	Evaluate the function call
static int	getElementProperties(NodeInfo element, int properties)	Get the properties of an element node.
static String	getInferredLayout(int properties)

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

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

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

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

Methods inherited from class java.lang.Object

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

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

getGenre

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

asIterable, concatenate, containsNode, materialize

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

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

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

makeRepeatable

Field Details

ELEMENT_LAYOUT

public static ItemType ELEMENT_LAYOUT

ATTRIBUTE_LAYOUT

public static ItemType ATTRIBUTE_LAYOUT

RETURN_TYPE

public static ItemType RETURN_TYPE

Constructor Details

ElementToMapPlan

public ElementToMapPlan()

Method Details

call

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

Evaluate the function call

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

getElementProperties

public static int getElementProperties(NodeInfo element,
 int properties)

Get the properties of an element node.

Parameters:

element - The element node.

properties - Zero if evaluating for this element on its own. Otherwise, when looking for common properties of all elements sharing the same name, the properties already gathered for other elements having the same name.

Returns:

the properties of this element, or, the properties shared by this element and others having the same element name. The returned value consists of a set of flags in the top 10 bits indicating for example whether the element has attributes, child element nodes, whitespace and/or non-whitespace text nodes; and in the bottom 20 bits, where all the children of an element have the same name, the fingerprint of the child element name.

getInferredLayout

public static String getInferredLayout(int properties)