Class IntegerRange

  • All Implemented Interfaces:
    java.io.Serializable, Expression, ValueRepresentation

    public class IntegerRange
    extends Value
    This class represents a sequence of consecutive ascending integers, for example 1 to 50. The integers must be within the range of a Java long.
    See Also:
    Serialized Form
    • Field Detail

      • start

        public long start
      • end

        public long end
    • Constructor Detail

      • IntegerRange

        public IntegerRange​(long start,
                            long end)
    • Method Detail

      • getStart

        public long getStart()
      • getEnd

        public long getEnd()
      • getImplementationMethod

        public int getImplementationMethod()
        An implementation of Expression must provide at least one of the methods evaluateItem(), iterate(), or process(). This method indicates which of these methods is provided directly. The other methods will always be available indirectly, using an implementation that relies on one of the other methods.
      • iterate

        public SequenceIterator iterate​(XPathContext context)
                                 throws XPathException
        Return an Iterator to iterate over the values of a sequence. The value of every expression can be regarded as a sequence, so this method is supported for all expressions. This default implementation handles iteration for expressions that return singleton values: for non-singleton expressions, the subclass must provide its own implementation.
        Parameters:
        context - supplies the context for evaluation
        Returns:
        a SequenceIterator that can be used to iterate over the result of the expression
        Throws:
        XPathException - if any dynamic error occurs evaluating the expression
      • itemAt

        public Item itemAt​(int n)
                    throws XPathException
        Get the n'th item in the sequence (starting from 0). This is defined for all Values, but its real benefits come for a sequence Value stored extensionally (or for a MemoClosure, once all the values have been read)
        Overrides:
        itemAt in class Value
        Throws:
        XPathException
      • display

        public void display​(int level,
                            java.io.PrintStream out,
                            Configuration config)
        Diagnostic display of the expression
        Specified by:
        display in interface Expression
        Overrides:
        display in class Value
        Parameters:
        level - indentation level for this expression
        out - Output destination