public class Unordered extends CompileTimeFunction
operation
argument
locationId, staticProperties
EVALUATE_METHOD, ITERATE_METHOD, PROCESS_METHOD
Constructor and Description |
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Unordered() |
Modifier and Type | Method and Description |
---|---|
Expression |
optimizer(Optimizer opt,
StaticContext env,
ItemType contextItemType) |
Expression |
preEvaluate(StaticContext env)
preEvaluate: called if the argument is constant
|
Expression |
typeCheck(StaticContext env,
ItemType contextItemType)
Type-check the expression.
|
evaluateItem, iterate
addContextDocumentArgument, checkArguments, computeCardinality, computeSpecialProperties, display, getDetails, getErrorCodeForTypeErrors, getItemType, getRequiredType, main, makeSystemFunction, setDetails, useContextItemAsDefault
checkArgumentCount, getDisplayName, getFunctionNameCode, getNumberOfArguments, iterateSubExpressions, optimize, promote, setArguments, setFunctionNameCode, simplify, simplifyArguments
adoptChildExpression, checkPermittedContents, computeDependencies, computeStaticProperties, doPromotion, dynamicError, dynamicError, effectiveBooleanValue, evaluateAsString, getCardinality, getColumnNumber, getConstructType, getDependencies, getExecutable, getHostLanguage, getImplementationMethod, getInstructionInfo, getIntrinsicDependencies, getLineNumber, getLocationId, getLocationProvider, getParentExpression, getPublicId, getSlotsUsed, getSpecialProperties, getSystemId, hasBadParentPointer, markTailFunctionCalls, process, resetStaticProperties, setLocationId, setParentExpression, suppressValidation, typeError, typeError
public Expression typeCheck(StaticContext env, ItemType contextItemType) throws XPathException
FunctionCall
typeCheck
in interface Expression
typeCheck
in class FunctionCall
env
- the static context of the expressioncontextItemType
- the static type of "." at the point where this expression is invoked.
The parameter is set to null if it is known statically that the context item will be undefined.
If the type of the context item is not known statically, the argument is set to
Type.ITEM_TYPE
StaticError
- if an error is discovered during this phase
(typically a type error)XPathException
public Expression optimizer(Optimizer opt, StaticContext env, ItemType contextItemType) throws XPathException
XPathException
public Expression preEvaluate(StaticContext env) throws XPathException
preEvaluate
in class CompileTimeFunction
XPathException