Class IncrementalIterator

  • All Implemented Interfaces:, java.lang.AutoCloseable, SequenceIterator, AxisIterator

    public class IncrementalIterator
    extends java.lang.Object
    implements AxisIterator
    This class implements an AxisIterator by providing a start item, and a function that selects the next item as a function of the previous item.
    • Constructor Detail

      • IncrementalIterator

        public IncrementalIterator​(NodeInfo start,
                                   java.util.function.Function<NodeInfo,​NodeInfo> stepper)
        Create an IncrementalIterator
        start - the first item to be returned by the iterator
        stepper - a function that computes the next item, given the current item, or returns null at the end of the sequence.
    • Method Detail

      • next

        public NodeInfo next()
        Get the next item in the sequence
        Specified by:
        next in interface AxisIterator
        Specified by:
        next in interface SequenceIterator
        the next item, or null if there are no more items to be returned.