lux.functions

Class LuxFunctionCall

java.lang.Object

net.sf.saxon.expr.Expression

net.sf.saxon.expr.FunctionCall

net.sf.saxon.functions.IntegratedFunctionCall

lux.functions.LuxFunctionCall

All Implemented Interfaces:

Serializable, SourceLocator, net.sf.saxon.event.LocationProvider, net.sf.saxon.event.SaxonLocator, net.sf.saxon.expr.Callable, net.sf.saxon.trace.InstructionInfo, Locator

public class LuxFunctionCall
extends net.sf.saxon.functions.IntegratedFunctionCall

Asserts that all of the functions in the library return ordered, peer nodesets so as to allow Saxon to optimize away document order sorting and enable lazy evaluation. TODO: specialize so it is possible to write functions for which this is not true without making a false assertion here.

See Also:

Serialized Form

Field Summary

Fields inherited from class net.sf.saxon.expr.FunctionCall

argument

Fields inherited from class net.sf.saxon.expr.Expression

EFFECTIVE_BOOLEAN_VALUE, EVALUATE_METHOD, EVENT_FEED_METHOD, INHERITED_CONTEXT, INSPECTION_CONTEXT, ITEM_FEED_METHOD, ITERATE_METHOD, locationId, MAX_SEQUENCE_LENGTH, MAX_STRING_LENGTH, NAVIGATION_CONTEXT, NODE_VALUE_CONTEXT, PROCESS_METHOD, PUSH_SELECTION, staticProperties, UNBOUNDED_LOWER, UNBOUNDED_UPPER, W3C_CONSUMING, W3C_FREE_RANGING, W3C_GROUP_CONSUMING, W3C_MOTIONLESS, WATCH_METHOD

Constructor Summary

Constructors

Constructor and Description
LuxFunctionCall(net.sf.saxon.lib.ExtensionFunctionCall f)

Method Summary

Methods

Modifier and Type	Method and Description
protected int	computeSpecialProperties()

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

call, checkArguments, computeCardinality, copy, effectiveBooleanValue, getContainer, getFunction, getIntrinsicDependencies, getItemType, iterate, preEvaluate, setContainer, typeCheck

Methods inherited from class net.sf.saxon.expr.FunctionCall

addExternalFunctionCallToPathMap, checkArgumentCount, equals, explain, getArguments, getDisplayName, getExpressionName, getFunctionName, getNumberOfArguments, hashCode, iterateSubExpressions, optimize, promote, replaceSubExpression, setArguments, setFunctionName, simplify, simplifyArguments, toString

Methods inherited from class net.sf.saxon.expr.Expression

addToPathMap, adoptChildExpression, checkForUpdatingSubexpressions, checkPermittedContents, computeDependencies, computeStaticProperties, doPromotion, dynamicError, evaluateAsString, evaluateItem, evaluatePendingUpdates, explain, getCardinality, getColumnNumber, getColumnNumber, getConstructType, getDependencies, getEvaluationMethod, getExecutable, getHostLanguage, getImplementationMethod, getIntegerBounds, getLineNumber, getLineNumber, getLocationId, getLocationProvider, getObjectName, getProperties, getProperty, getPublicId, getSlotsUsed, getSpecialProperties, getSystemId, getSystemId, hasVariableBinding, implementsStaticTypeCheck, isSubtreeExpression, isUpdatingExpression, isVacuousExpression, iterateEvents, iterateSubExpressionInfo, markTailFunctionCalls, process, resetLocalStaticProperties, setEvaluationMethod, setFiltered, setFlattened, setLocationId, staticTypeCheck, suppressValidation, toPattern, typeError

Methods inherited from class java.lang.Object

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

Constructor Detail

LuxFunctionCall

public LuxFunctionCall(net.sf.saxon.lib.ExtensionFunctionCall f)

Method Detail

computeSpecialProperties

protected int computeSpecialProperties()

Overrides:

computeSpecialProperties in class net.sf.saxon.functions.IntegratedFunctionCall

Returns:

any existing special properties, joined by ORDER_NODESET and PEER_NODESET