Package net.sf.saxon.functions
Class NormalizeSpace_1
java.lang.Object
net.sf.saxon.functions.AbstractFunction
net.sf.saxon.functions.SystemFunction
net.sf.saxon.functions.ScalarSystemFunction
net.sf.saxon.functions.NormalizeSpace_1
- All Implemented Interfaces:
Callable
,Function
,GroundedValue
,Item
,Sequence
Implement the XPath normalize-space() function
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Field Summary
Fields inherited from class net.sf.saxon.functions.ScalarSystemFunction
ZERO_LENGTH_STRING
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionevaluate
(Item arg, XPathContext context) Abstract method that must be supplied in subclasses to perform the evaluationGet the (local) name of a class that can be used to generate bytecode for this system functionmakeFunctionCall
(Expression[] arguments) Make an expression that either calls this function, or that is equivalent to a call on this functionstatic StringValue
Method that may be supplied in subclasses, to indicate the result that is returned when an empty sequence is supplied as the argument value.Methods inherited from class net.sf.saxon.functions.ScalarSystemFunction
call
Methods inherited from class net.sf.saxon.functions.SystemFunction
dependsOnContextItem, dynamicCall, equals, export, exportAdditionalArguments, exportAttributes, fixArguments, getArity, getCardinality, getContextNode, getDescription, getDetails, getErrorCodeForTypeErrors, getFunctionItemType, getFunctionName, getIntegerBounds, getNetCost, getOperandRoles, getRequiredType, getResultItemType, getResultItemType, getRetainedStaticContext, getSpecialProperties, getStaticBaseUriString, getStreamerName, importAttributes, isTrustedResultType, makeCall, makeFunction, makeOptimizedFunctionCall, resultIfEmpty, setArity, setDetails, setRetainedStaticContext, supplyTypeInformation, toShortString, toString, typeCheckCaller
Methods inherited from class net.sf.saxon.functions.AbstractFunction
atomize, deepEquals, effectiveBooleanValue, getAnnotations, getStringValue, getStringValueCS, isArray, isMap, makeNewContext, simplify, typeCheck
Methods inherited from class java.lang.Object
clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
Methods inherited from interface net.sf.saxon.om.GroundedValue
asIterable, concatenate, containsNode, materialize
Methods inherited from interface net.sf.saxon.om.Item
getLength, 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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NormalizeSpace_1
public NormalizeSpace_1()
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Method Details
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resultWhenEmpty
Description copied from class:ScalarSystemFunction
Method that may be supplied in subclasses, to indicate the result that is returned when an empty sequence is supplied as the argument value. The default is to return the empty sequence- Overrides:
resultWhenEmpty
in classScalarSystemFunction
- Returns:
- the result of evaluation when the supplied argument is an empty sequence
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evaluate
Description copied from class:ScalarSystemFunction
Abstract method that must be supplied in subclasses to perform the evaluation- Specified by:
evaluate
in classScalarSystemFunction
- Parameters:
arg
- the supplied argumentcontext
- the dynamic context- Returns:
- the result of the evaluation
- Throws:
XPathException
- if a dynamic error occurs
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normalizeSpace
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makeFunctionCall
Description copied from class:SystemFunction
Make an expression that either calls this function, or that is equivalent to a call on this function- Overrides:
makeFunctionCall
in classScalarSystemFunction
- 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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getCompilerName
Description copied from class:SystemFunction
Get the (local) name of a class that can be used to generate bytecode for this system function- Overrides:
getCompilerName
in classSystemFunction
- Returns:
- the name of a bytecode generation class, or null if there is no bytecode support for this function
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