IncrementalIterator

java.lang.Object
- net.sf.saxon.tree.iter.IncrementalIterator

All Implemented Interfaces:

java.io.Closeable, 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 Summary
  
  Constructors
  Constructor Description
  
  IncrementalIterator(NodeInfo start, java.util.function.Function<NodeInfo,NodeInfo> stepper)
  Create an IncrementalIterator
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  NodeInfo next()
  Get the next item in the sequence
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
  - Methods inherited from interface net.sf.saxon.om.SequenceIterator
    close

- Constructor Detail
  - IncrementalIterator
```
public IncrementalIterator(NodeInfo start,
                           java.util.function.Function<NodeInfo,NodeInfo> stepper)
```
    Create an IncrementalIterator
    
    Parameters:
    
    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
    
    Returns:
    
    the next item, or null if there are no more items to be returned.