Package net.sf.saxon.expr
Interface LastPositionFinder
- All Known Subinterfaces:
ConstrainedIterator<T>
- All Known Implementing Classes:
ARegexIterator
,ArrayIterator
,ArrayIterator.OfNodes
,BigRangeIterator
,EmptyIterator
,FocusTrackingIterator
,GroupAdjacentIterator
,GroupByIterator
,GroupEndingIterator
,GroupMatchingIterator
,GroupStartingIterator
,ItemMappingIterator
,JRegexIterator
,ListIterator
,ListIterator.Atomic
,ListIterator.OfNodes
,ManualIterator
,MemoSequence.ProgressiveIterator
,MergeGroupingIterator
,RangeIterator
,Remove.RemoveIterator
,ReverseListIterator
,ReverseRangeIterator
,SingleAtomicIterator
,SingleNodeIterator
,SingletonIterator
,SortedGroupIterator
,SortedIterator
,SubsequenceIterator
,TailIterator
,UntypedAtomizingIterator
- Functional Interface:
- This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
A LastPositionFinder is an interface implemented by any SequenceIterator that is
able to return the position of the last item in the sequence.
-
Method Summary
Modifier and TypeMethodDescriptionint
Get the last position (that is, the number of items in the sequence).
-
Method Details
-
getLength
Get the last position (that is, the number of items in the sequence). This method is non-destructive: it does not change the state of the iterator. The result is undefined if the next() method of the iterator has already returned null. This method must not be called unless the result of getProperties() on the iterator includes the bit settingSequenceIterator.Property.LAST_POSITION_FINDER
- Returns:
- the number of items in the sequence
- Throws:
XPathException
- if an error occurs evaluating the sequence in order to determine the number of items
-