public class CurrentGroup extends SystemFunction implements XSLTFunction
?????? | ????? |
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static int |
CURRENT_GROUP |
static int |
CURRENT_GROUPING_KEY |
operation
argument
EVALUATE_METHOD, ITERATE_METHOD, locationId, PROCESS_METHOD, staticProperties
?????? |
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CurrentGroup() |
?????? | ????? |
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Item |
evaluateItem(XPathContext c)
Evaluate the expression
|
int |
getIntrinsicDependencies()
Determine the dependencies
|
SequenceIterator |
iterate(XPathContext c)
Return an iteration over the result sequence
|
Expression |
preEvaluate(ExpressionVisitor visitor)
preEvaluate: this method suppresses compile-time evaluation by doing nothing
(because the value of the expression depends on the runtime context)
|
addContextDocumentArgument, addDocToPathMap, checkArguments, computeCardinality, computeSpecialProperties, copy, getDetails, getErrorCodeForTypeErrors, getItemType, getRequiredType, makeSystemFunction, optimize, setDetails, useContextItemAsDefault
addExternalFunctionCallToPathMap, checkArgumentCount, equals, explain, getArguments, getDisplayName, getFunctionName, getNumberOfArguments, hashCode, iterateSubExpressions, promote, replaceSubExpression, setArguments, setFunctionName, simplify, simplifyArguments, toString, typeCheck
addToPathMap, adoptChildExpression, checkForUpdatingSubexpressions, checkPermittedContents, computeDependencies, computeStaticProperties, display, doPromotion, dynamicError, effectiveBooleanValue, evaluateAsString, evaluatePendingUpdates, explain, findParentOf, getCardinality, getColumnNumber, getColumnNumber, getConstructType, getContainer, getDependencies, getExecutable, getHostLanguage, getImplementationMethod, getLineNumber, getLineNumber, getLocationId, getLocationProvider, getObjectName, getProperties, getProperty, getPublicId, getSlotsUsed, getSpecialProperties, getSystemId, getSystemId, hasLoopingSubexpression, implementsStaticTypeCheck, isUpdatingExpression, iterateEvents, markTailFunctionCalls, process, resetLocalStaticProperties, setContainer, setFiltered, setFlattened, setLocationId, staticTypeCheck, suppressValidation, typeError
public static final int CURRENT_GROUP
public static final int CURRENT_GROUPING_KEY
public Expression preEvaluate(ExpressionVisitor visitor)
preEvaluate
??? FunctionCall
visitor
- an expression visitorpublic Item evaluateItem(XPathContext c) throws XPathException
evaluateItem
???? EvaluableItem
evaluateItem
??? Expression
c
- The context in which the expression is to be evaluatedXPathException
- if any dynamic error occurs evaluating the
expressionpublic SequenceIterator iterate(XPathContext c) throws XPathException
iterate
???? SequenceIterable
iterate
??? Expression
c
- supplies the context for evaluationXPathException
- if any dynamic error occurs evaluating the
expressionpublic int getIntrinsicDependencies()
getIntrinsicDependencies
??? Expression