java.io.Serializable
, javax.xml.transform.SourceLocator
, Container
, Expression
, InstructionInfoProvider
public class Position extends SystemFunction
locationId, staticProperties
EVALUATE_METHOD, ITERATE_METHOD, PROCESS_METHOD
argument
operation
Constructor | Description |
---|---|
Position() |
Modifier and Type | Method | Description |
---|---|---|
Item |
evaluateItem(XPathContext c) |
Evaluate in a general context
|
int |
getIntrinsicDependencies() |
Determine the intrinsic dependencies
|
Expression |
preEvaluate(StaticContext env) |
preEvaluate: this method suppresses compile-time evaluation by doing nothing
(because the value of the expression depends on the runtime context)
|
adoptChildExpression, checkPermittedContents, computeDependencies, computeStaticProperties, doPromotion, dynamicError, effectiveBooleanValue, evaluateAsString, getCardinality, getColumnNumber, getConstructType, getDependencies, getExecutable, getHostLanguage, getImplementationMethod, getInstructionInfo, getLineNumber, getLocationId, getLocationProvider, getParentExpression, getPublicId, getSlotsUsed, getSpecialProperties, getSystemId, hasBadParentPointer, iterate, markTailFunctionCalls, process, resetStaticProperties, setLocationId, setParentExpression, setParentExpression, suppressValidation, typeError
checkArgumentCount, getArguments, getDisplayName, getFunctionNameCode, getNumberOfArguments, iterateSubExpressions, optimize, promote, replaceSubExpression, setArguments, setFunctionNameCode, simplify, simplifyArguments, typeCheck
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
addContextDocumentArgument, checkArguments, computeCardinality, computeSpecialProperties, display, getDetails, getErrorCodeForTypeErrors, getItemType, getRequiredType, main, makeSystemFunction, setDetails, useContextItemAsDefault
public Expression preEvaluate(StaticContext env)
preEvaluate
in class FunctionCall
public Item evaluateItem(XPathContext c) throws XPathException
evaluateItem
in interface Expression
evaluateItem
in class ComputedExpression
c
- The context in which the expression is to be evaluatedXPathException
- if any dynamic error occurs evaluating the
expressionpublic int getIntrinsicDependencies()
getIntrinsicDependencies
in class ComputedExpression