Interface Binding

    • Method Detail

      • getRequiredType

        SequenceType getRequiredType()
        Get the declared type of the variable
        Returns:
        the declared type
      • getIntegerBoundsForVariable

        IntegerValue[] getIntegerBoundsForVariable()
        If the variable is bound to an integer, get the minimum and maximum possible values. Return null if unknown or not applicable
        Returns:
        a pair of integers containing the minimum and maximum values for the integer value; or null if the value is not an integer or the range is unknown
      • evaluateVariable

        Sequence evaluateVariable​(XPathContext context)
                           throws XPathException
        Evaluate the variable
        Parameters:
        context - the XPath dynamic evaluation context
        Returns:
        the result of evaluating the variable
        Throws:
        XPathException - if an error occurs while evaluating the variable
      • isGlobal

        boolean isGlobal()
        Indicate whether the binding is local or global. A global binding is one that has a fixed value for the life of a query or transformation; any other binding is local.
        Returns:
        true if the binding is global
      • isAssignable

        boolean isAssignable()
        Test whether it is permitted to assign to the variable using the saxon:assign extension element. This will only be for an XSLT global variable where the extra attribute saxon:assignable="yes" is present.
        Returns:
        true if the binding is assignable
      • getVariableQName

        StructuredQName getVariableQName()
        Get the name of the variable
        Returns:
        the name of the variable, as a structured QName
      • addReference

        void addReference​(VariableReference ref,
                          boolean isLoopingReference)
        Register a variable reference that refers to the variable bound in this expression
        Parameters:
        ref - the variable reference
        isLoopingReference - - true if the reference occurs within a loop, such as the predicate of a filter expression