Package net.sf.saxon.expr

Interface CallableExpression

All Known Implementing Classes:
Adjust, ArithmeticExpression10, Average, BaseURI, BooleanFn, CodepointEqual, Collection, Compare, Contains, CurrentDateTime, CurrentGroup, CurrentGroupingKey, DeepEqual, DistinctValues, Doc, DocumentFn, DocumentUriFn, ElementAvailable, Error, EscapeURI, FormatDate, FormatNumber, FunctionArity, FunctionAvailable, FunctionName, GeneralComparison, GeneralComparison10, GeneralComparison20, Id, Idref, IndexOf, InScopePrefixes, Insert, IntegratedFunctionCall, Lang, NamespaceForPrefix, Nilled, NormalizeUnicode, Remove, Replace, ResolveQName, ResolveURI, Reverse, SimpleExpression, StringToCodepoints, Subsequence, SystemProperty, Tokenize, Trace, TreatFn, TypeAvailable, UnparsedEntity, UnparsedText, UnparsedTextAvailable, UnparsedTextLines, UriCollection, XPathFunctionCall
public interface CallableExpression
A generic interface for calling expressions by supplying the values of their subexpressions

  • Method Details

    • getArguments

      Expression[] getArguments()
      Get the subexpressions (arguments to this expression)
      Returns:
      the arguments, as an array

    • call

      SequenceIterator<? extends Item> call(SequenceIterator<? extends Item>[] arguments, XPathContext context) throws XPathException
      Evaluate the expression
      Parameters:
      arguments - the values of the arguments, supplied as SequenceIterators
      context - the dynamic evaluation context
      Returns:
      the result of the evaluation, in the form of a SequenceIterator
      Throws:
      XPathException - if a dynamic error occurs during the evaluation of the expression