public static class MapFunctionSet.MapMerge extends SystemFunction
Constructor and Description |
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MapMerge() |
Modifier and Type | Method and Description |
---|---|
Sequence |
call(XPathContext context,
Sequence[] arguments)
Invoke the function
|
void |
exportAdditionalArguments(SystemFunctionCall call,
ExpressionPresenter out)
Export any implicit arguments held in optimized form within the SystemFunction call
|
ItemType |
getResultItemType(Expression[] args)
Get the return type, given knowledge of the actual arguments
|
java.lang.String |
getStreamerName()
Get a name that identifies the class that can be used to evaluate this function
in streaming mode, that is, supplying one item or event at a time as it is
delivered by the parser.
|
Expression |
makeOptimizedFunctionCall(ExpressionVisitor visitor,
ContextItemStaticInfo contextInfo,
Expression... arguments)
Allow the function to create an optimized call based on the values of the actual arguments
|
dependsOnContextItem, dynamicCall, equals, export, exportAttributes, fixArguments, getArity, getCardinality, getCompilerName, getContextNode, getDescription, getDetails, getErrorCodeForTypeErrors, getFunctionItemType, getFunctionName, getIntegerBounds, getNetCost, getOperandRoles, getRequiredType, getResultItemType, getRetainedStaticContext, getSpecialProperties, getStaticBaseUriString, importAttributes, isTrustedResultType, makeCall, makeFunction, makeFunctionCall, resultIfEmpty, setArity, setDetails, setRetainedStaticContext, supplyTypeInformation, typeCheckCaller
atomize, deepEquals, effectiveBooleanValue, getAnnotations, getStringValue, getStringValueCS, isArray, isMap, makeNewContext, simplify, typeCheck
getLength, head, isStreamed, itemAt, iterate, reduce, subsequence
clone, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
getLength, head, itemAt, reduce, subsequence
public Expression makeOptimizedFunctionCall(ExpressionVisitor visitor, ContextItemStaticInfo contextInfo, Expression... arguments) throws XPathException
makeOptimizedFunctionCall
in class SystemFunction
visitor
- the expression visitorcontextInfo
- information about the context itemarguments
- the supplied arguments to the function call. Note: modifying the contents
of this array should not be attempted, it is likely to have no effect.XPathException
- if an error is detectedpublic ItemType getResultItemType(Expression[] args)
getResultItemType
in class SystemFunction
args
- the actual arguments suppliedpublic Sequence call(XPathContext context, Sequence[] arguments) throws XPathException
Function
context
- the XPath dynamic evaluation contextarguments
- the actual arguments to be suppliedXPathException
- if a dynamic error occurs within the functionpublic java.lang.String getStreamerName()
SystemFunction
getStreamerName
in class SystemFunction
StreamerMap
. In non-streaming Saxon editions
(HE and PE) the method always returns null.public void exportAdditionalArguments(SystemFunctionCall call, ExpressionPresenter out) throws XPathException
exportAdditionalArguments
in class SystemFunction
out
- the export destinationXPathException
Copyright (c) 2004-2018 Saxonica Limited. All rights reserved.