Package net.sf.saxon.tree.tiny
Class NamedChildIterator
java.lang.Object
net.sf.saxon.tree.tiny.NamedChildIterator
- All Implemented Interfaces:
Closeable,AutoCloseable,AtomizedValueIterator,SequenceIterator,AxisIterator,LookaheadIterator,UnfailingIterator
final class NamedChildIterator
extends Object
implements AxisIterator, LookaheadIterator, AtomizedValueIterator
This class is a fast path iterator for the child axis in the TinyTree, where the axis specifies
an explicit name test for the required element nodes.
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Nested Class Summary
Nested classes/interfaces inherited from interface net.sf.saxon.om.SequenceIterator
SequenceIterator.Property -
Constructor Summary
ConstructorsConstructorDescriptionNamedChildIterator(TinyTree tree, TinyNodeImpl node, int fingerprint) Return an enumeration over children or siblings of the context node -
Method Summary
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitMethods inherited from interface net.sf.saxon.tree.iter.AxisIterator
asIterator, forEachNodeMethods inherited from interface net.sf.saxon.om.SequenceIterator
close, forEachOrFail, materializeMethods inherited from interface net.sf.saxon.tree.iter.UnfailingIterator
forEach, toList
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Constructor Details
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NamedChildIterator
NamedChildIterator(TinyTree tree, TinyNodeImpl node, int fingerprint) Return an enumeration over children or siblings of the context node- Parameters:
tree- The TinyTree containing the context nodenode- The context node, the start point for the iterationfingerprint- The fingerprint of the required element children
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Method Details
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next
Return the next node in the sequence- Specified by:
nextin interfaceAxisIterator- Specified by:
nextin interfaceSequenceIterator- Specified by:
nextin interfaceUnfailingIterator- Returns:
- the next node, or null if the end of the sequence is reached
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nextAtomizedValue
Deliver the atomic value that is next in the atomized result- Specified by:
nextAtomizedValuein interfaceAtomizedValueIterator- Returns:
- the next atomic value
- Throws:
XPathException- if a failure occurs reading or atomizing the next value
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hasNext
public boolean hasNext()Test whether there are any more nodes to come. This method is used only when testing whether the current item is the last in the sequence. It's not especially efficient, but is more efficient than the alternative strategy which involves counting how many nodes there are in the sequence.- Specified by:
hasNextin interfaceLookaheadIterator- Returns:
- true if there are more items in the sequence
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getProperties
Description copied from interface:SequenceIteratorGet properties of this iterator.- Specified by:
getPropertiesin interfaceSequenceIterator- Returns:
- the properties of this iterator. This will be some combination of
properties such as
SequenceIterator.Property.GROUNDED,SequenceIterator.Property.LAST_POSITION_FINDER, andSequenceIterator.Property.LOOKAHEAD. It is always acceptable to return the default valueEnumSet.noneOf(Property.class), indicating that there are no known special properties. It is acceptable (though unusual) for the properties of the iterator to change depending on its state.
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