Class Collection

    • Field Detail

      • EMPTY_COLLECTION

        public static java.lang.String EMPTY_COLLECTION
        URI representing a collection that is always empty, regardless of any collection URI resolver
    • Constructor Detail

      • Collection

        public Collection()
    • Method Detail

      • getStaticBaseURI

        public java.lang.String getStaticBaseURI()
      • computeSpecialProperties

        public int computeSpecialProperties()
        Description copied from class: SystemFunction
        Determine the special properties of this expression. The general rule is that a system function call is non-creative if its return type is atomic, or if all its arguments are non-creative. This is overridden for the generate-id() function, which is considered creative if its operand is creative (because the result depends on the identity of the operand)
        Overrides:
        computeSpecialProperties in class SystemFunction
        Returns:
        the special properties, as a bit-significant integer
      • preEvaluate

        public Expression preEvaluate​(ExpressionVisitor visitor)
        preEvaluate: this method suppresses compile-time evaluation by doing nothing
        Overrides:
        preEvaluate in class FunctionCall
        Parameters:
        visitor - an expression visitor
        Returns:
        the result of the early evaluation, or the original expression, or potentially a simplified expression
      • addToPathMap

        public PathMap.PathMapNodeSet addToPathMap​(PathMap pathMap,
                                                   PathMap.PathMapNodeSet pathMapNodeSet)
        Add a representation of this expression to a PathMap. The PathMap captures a map of the nodes visited by an expression in a source tree.
        Overrides:
        addToPathMap in class Expression
        Parameters:
        pathMap - the PathMap to which the expression should be added
        pathMapNodeSet - the PathMapNodeSet to which the paths embodied in this expression should be added
        Returns:
        the pathMapNode representing the focus established by this expression, in the case where this expression is the first operand of a path expression or filter expression
      • getResolverResults

        public static SequenceIterator getResolverResults​(SequenceIterator iter,
                                                          java.lang.String baseURI,
                                                          XPathContext context,
                                                          javax.xml.transform.SourceLocator locator)
        Return the results of iterating over the results returned by the CollectionURIResolver.

        Note, this method is called by generated code

        Parameters:
        iter - iterator over the results of the CollectionURIResolver
        baseURI - the base URI
        context - the dynamic context
        locator - location of the instruction
        Returns:
        an iterator over the documents in the collection.