Package net.sf.saxon.functions
Class CurrentGroupingKey
java.lang.Object
net.sf.saxon.functions.AbstractFunction
net.sf.saxon.functions.SystemFunction
net.sf.saxon.functions.ContextAccessorFunction
net.sf.saxon.functions.CurrentGroupingKey
- All Implemented Interfaces:
Callable
,FunctionItem
,GroundedValue
,Item
,Sequence
Implements the XSLT function current-grouping-key()
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionbindContext
(XPathContext context) Bind context information to appear as part of the function's closure.call
(XPathContext context, Sequence[] arguments) Evaluate the expressionmakeFunctionCall
(Expression... arguments) Make an expression that either calls this function, or that is equivalent to a call on this functionMethods inherited from class net.sf.saxon.functions.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, getStreamerName, getUniStringArg, hashCode, importAttributes, isSequenceVariadic, isTrustedResultType, makeCall, makeFunction, makeFunction40, makeOptimizedFunctionCall, 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
getLength, getStringValue, head, isStreamed, itemAt, iterate, reduce, subsequence
Methods inherited from interface net.sf.saxon.om.Sequence
makeRepeatable
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Constructor Details
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CurrentGroupingKey
public CurrentGroupingKey()
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Method Details
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makeFunctionCall
Make an expression that either calls this function, or that is equivalent to a call on this function- Overrides:
makeFunctionCall
in classSystemFunction
- Parameters:
arguments
- the supplied arguments to the function call- Returns:
- either a function call on this function, or an expression that delivers the same result
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bindContext
Description copied from class:ContextAccessorFunction
Bind context information to appear as part of the function's closure. If this method has been called, the supplied context will be used in preference to the context at the point where the function is actually called.- Specified by:
bindContext
in classContextAccessorFunction
- Parameters:
context
- the context to which the function applies. Must not be null.- Throws:
XPathException
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call
Evaluate the expression- Specified by:
call
in interfaceCallable
- Overrides:
call
in classContextAccessorFunction
- Parameters:
context
- the dynamic evaluation contextarguments
- the values of the arguments, supplied as SequenceIterators- Returns:
- the result of the evaluation, in the form of a SequenceIterator
- Throws:
XPathException
- if a dynamic error occurs during the evaluation of the expression
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