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java.lang.Objectnet.sf.saxon.evpull.EventMappingIterator
public final class EventMappingIterator
MappingIterator merges a sequence of sequences into a single sequence.
It takes as inputs an iteration, and a mapping function to be
applied to each Item returned by that iteration. The mapping function itself
returns another iteration. The result is an iteration of iterators. To convert this
int a single flat iterator over a uniform sequence of events, the result must be wrapped
in an EventStackIterator
| Constructor Summary | |
|---|---|
EventMappingIterator(SequenceIterator base,
EventMappingFunction action)
Construct a MappingIterator that will apply a specified MappingFunction to each Item returned by the base iterator. |
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| Method Summary | |
|---|---|
boolean |
isFlatSequence()
Determine whether the EventIterator returns a flat sequence of events, or whether it can return nested event iterators |
PullEvent |
next()
Get the next event in the sequence |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public EventMappingIterator(SequenceIterator base,
EventMappingFunction action)
base - the base iteratoraction - the mapping function to be applied| Method Detail |
|---|
public PullEvent next()
throws XPathException
EventIterator
next in interface EventIteratorXPathException - if a dynamic evaluation error occurspublic boolean isFlatSequence()
isFlatSequence in interface EventIterator
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