B
- the class of the external nodes being wrapped.public abstract class NodeWrappingAxisIterator<B> extends java.lang.Object implements AxisIterator, LookaheadIterator
ATOMIZING, GROUNDED, LAST_POSITION_FINDER, LOOKAHEAD
Constructor and Description |
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NodeWrappingAxisIterator(java.util.Iterator<? extends B> base,
NodeWrappingFunction<? super B,NodeInfo> wrappingFunction)
Create a SequenceIterator over a given iterator
|
Modifier and Type | Method and Description |
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void |
close()
Close the iterator.
|
java.util.Iterator<? extends B> |
getBaseIterator() |
NodeWrappingFunction<? super B,NodeInfo> |
getNodeWrappingFunction() |
int |
getProperties()
Get properties of this iterator, as a bit-significant integer.
|
boolean |
hasNext()
Determine whether there are more items to come.
|
boolean |
isIgnorable(B node) |
NodeInfo |
next()
Get the next item in the sequence.
|
public NodeWrappingAxisIterator(java.util.Iterator<? extends B> base, NodeWrappingFunction<? super B,NodeInfo> wrappingFunction)
base
- the base IteratorwrappingFunction
- a function that wraps objects of type B in a Saxon NodeInfopublic java.util.Iterator<? extends B> getBaseIterator()
public NodeWrappingFunction<? super B,NodeInfo> getNodeWrappingFunction()
public boolean hasNext()
LookaheadIterator
SequenceIterator.LOOKAHEAD
hasNext
in interface LookaheadIterator
public NodeInfo next()
UnfailingIterator
next
in interface SequenceIterator
next
in interface AxisIterator
next
in interface UnfailingIterator
public void close()
SequenceIterator
(Currently, closing an iterator is important only when the data is being "pushed" in another thread. Closing the iterator terminates that thread and means that it needs to do no additional work. Indeed, failing to close the iterator may cause the push thread to hang waiting for the buffer to be emptied.)
close
in interface SequenceIterator
public boolean isIgnorable(B node)
public int getProperties()
getProperties
in interface SequenceIterator
SequenceIterator.GROUNDED
, SequenceIterator.LAST_POSITION_FINDER
,
and SequenceIterator.LOOKAHEAD
. It is always
acceptable to return the value zero, indicating that there are no known special properties.
It is acceptable for the properties of the iterator to change depending on its state.Copyright (c) 2004-2018 Saxonica Limited. All rights reserved.