java.io.Serializable
, javax.xml.transform.SourceLocator
, Container
, Expression
, InstructionInfoProvider
public class Error extends SystemFunction
locationId, staticProperties
EVALUATE_METHOD, ITERATE_METHOD, PROCESS_METHOD
argument
operation
Constructor | Description |
---|---|
Error() |
Modifier and Type | Method | Description |
---|---|---|
Item |
evaluateItem(XPathContext context) |
Evaluation of the expression always throws an error
|
Expression |
preEvaluate(StaticContext env) |
preEvaluate: this method suppresses compile-time evaluation by doing nothing
|
Expression |
simplify(StaticContext env) |
Simplify and validate.
|
adoptChildExpression, checkPermittedContents, computeDependencies, computeStaticProperties, doPromotion, dynamicError, effectiveBooleanValue, evaluateAsString, getCardinality, getColumnNumber, getConstructType, getDependencies, getExecutable, getHostLanguage, getImplementationMethod, getInstructionInfo, getIntrinsicDependencies, getLineNumber, getLocationId, getLocationProvider, getParentExpression, getPublicId, getSlotsUsed, getSpecialProperties, getSystemId, hasBadParentPointer, iterate, markTailFunctionCalls, process, resetStaticProperties, setLocationId, setParentExpression, setParentExpression, suppressValidation, typeError
checkArgumentCount, getArguments, getDisplayName, getFunctionNameCode, getNumberOfArguments, iterateSubExpressions, optimize, promote, replaceSubExpression, setArguments, setFunctionNameCode, simplifyArguments, typeCheck
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
addContextDocumentArgument, checkArguments, computeCardinality, computeSpecialProperties, display, getDetails, getErrorCodeForTypeErrors, getItemType, getRequiredType, main, makeSystemFunction, setDetails, useContextItemAsDefault
public Expression simplify(StaticContext env) throws StaticError
simplify
in interface Expression
simplify
in class FunctionCall
env
- the static contextStaticError
- if an error is discovered during expression
rewritingpublic Expression preEvaluate(StaticContext env)
preEvaluate
in class FunctionCall
public Item evaluateItem(XPathContext context) throws XPathException
evaluateItem
in interface Expression
evaluateItem
in class ComputedExpression
context
- The context in which the expression is to be evaluatedXPathException
- if any dynamic error occurs evaluating the
expression