Navigator.PrecedingEnumeration

java.lang.Object
- net.sf.saxon.tree.util.Navigator.PrecedingEnumeration

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, SequenceIterator, AxisIterator

Enclosing class:

Navigator
```
public static final class Navigator.PrecedingEnumeration
extends java.lang.Object
implements AxisIterator
```
Helper method to iterate over the preceding axis, or Saxon's internal preceding-or-ancestor axis, by making use of the ancestor, descendant, and preceding-sibling axes.

Constructor Summary

Constructors
Constructor	Description
`PrecedingEnumeration(NodeInfo start, boolean includeAncestors)`	Create an iterator for the preceding or "preceding-or-ancestor" axis (the latter being used internall to support xsl:number)

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, discharge

- Constructor Detail
  - PrecedingEnumeration
```
public PrecedingEnumeration(NodeInfo start,
                            boolean includeAncestors)
```
    Create an iterator for the preceding or "preceding-or-ancestor" axis (the latter being used internall to support xsl:number)
    
    Parameters:
    
    start - the initial context node
    
    includeAncestors - true if ancestors of the initial context node are to be included in the result
- Method Detail
  - next
```
public final NodeInfo next()
```
    Description copied from interface: SequenceIterator
    
    Get the next item in the sequence. This method changes the state of the iterator.
    
    Specified by:
    
    next in interface AxisIterator
    
    Specified by:
    
    next in interface SequenceIterator
    
    Returns:
    
    the next item, or null if there are no more items. Once a call on next() has returned null, no further calls should be made. The preferred action for an iterator if subsequent calls on next() are made is to return null again, and all implementations within Saxon follow this rule.