Package net.sf.saxon.tree.util
Class Navigator.DescendantEnumeration
java.lang.Object
net.sf.saxon.tree.util.Navigator.DescendantEnumeration
- All Implemented Interfaces:
Closeable,AutoCloseable,SequenceIterator,AxisIterator,UnfailingIterator
- Enclosing class:
Navigator
General-purpose implementation of the descendant and descendant-or-self axes,
in terms of the child axis.
But it also has the option to return the descendants in reverse document order;
this is used when evaluating the preceding axis. Note that the includeSelf option
should not be used when scanning in reverse order, as the self node will always be
returned first.
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Nested Class Summary
Nested classes/interfaces inherited from interface net.sf.saxon.om.SequenceIterator
SequenceIterator.Property -
Constructor Summary
ConstructorsConstructorDescriptionDescendantEnumeration(NodeInfo start, boolean includeSelf, boolean forwards) Create an iterator over the descendant or descendant-or-self axis -
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, getProperties, materializeMethods inherited from interface net.sf.saxon.tree.iter.UnfailingIterator
forEach, toList
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Constructor Details
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DescendantEnumeration
Create an iterator over the descendant or descendant-or-self axis- Parameters:
start- the initial context nodeincludeSelf- true if the "self" node is to be includedforwards- true for a forwards iteration, false for reverse order
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Method Details
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next
Description copied from interface:UnfailingIteratorGet the next item in the sequence.- Specified by:
nextin interfaceAxisIterator- Specified by:
nextin interfaceSequenceIterator- Specified by:
nextin interfaceUnfailingIterator- Returns:
- the next Item. If there are no more items, return null.
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advance
public void advance()
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