net.sf.saxon.functions
Class Parse
java.lang.Object
net.sf.saxon.expr.ComputedExpression
net.sf.saxon.expr.FunctionCall
net.sf.saxon.functions.SystemFunction
net.sf.saxon.functions.Parse
- All Implemented Interfaces:
- Serializable, SourceLocator, Container, Expression, InstructionInfoProvider
public class Parse
- extends SystemFunction
This class implements the saxon:parse() extension function,
which is specially-recognized by the system because it needs access
to parts of the static context
- See Also:
- Serialized Form
Constructor Summary |
Parse()
|
Methods inherited from class net.sf.saxon.functions.SystemFunction |
addContextDocumentArgument, computeCardinality, computeSpecialProperties, display, getDetails, getErrorCodeForTypeErrors, getItemType, getRequiredType, main, makeSystemFunction, setDetails, useContextItemAsDefault |
Methods inherited from class net.sf.saxon.expr.FunctionCall |
checkArgumentCount, getDisplayName, getFunctionNameCode, getNumberOfArguments, iterateSubExpressions, optimize, promote, setArguments, setFunctionNameCode, simplify, simplifyArguments, typeCheck |
Methods inherited from class net.sf.saxon.expr.ComputedExpression |
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, iterate, markTailFunctionCalls, process, resetStaticProperties, setLocationId, setParentExpression, suppressValidation, typeError, typeError |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
baseURI
String baseURI
Parse
public Parse()
checkArguments
public void checkArguments(StaticContext env)
throws XPathException
- Method supplied by each class of function to check arguments during parsing, when all
the argument expressions have been read
- Overrides:
checkArguments
in class SystemFunction
- Throws:
XPathException
preEvaluate
public Expression preEvaluate(StaticContext env)
throws XPathException
- Pre-evaluate a function at compile time. Static evaluation is suppressed for
saxon:parse because no controller is available.
- Overrides:
preEvaluate
in class FunctionCall
- Throws:
XPathException
evaluateItem
public Item evaluateItem(XPathContext c)
throws XPathException
- Evaluate in a general context
- Specified by:
evaluateItem
in interface Expression
- Overrides:
evaluateItem
in class ComputedExpression
- Parameters:
c
- The context in which the expression is to be evaluated
- Returns:
- the node or atomic value that results from evaluating the
expression; or null to indicate that the result is an empty
sequence
- Throws:
XPathException
- if any dynamic error occurs evaluating the
expression