public abstract class AxisIteratorImpl extends java.lang.Object implements AxisIterator
?????? | ????? |
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protected NodeInfo |
current |
protected int |
position |
GROUNDED, LAST_POSITION_FINDER, LOOKAHEAD
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AxisIteratorImpl() |
?????? | ????? |
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Value |
atomize()
Return the atomized value of the current node.
|
void |
close()
Close the iterator.
|
Item |
current()
Get the current node in the sequence.
|
int |
getProperties()
Get properties of this iterator, as a bit-significant integer.
|
java.lang.CharSequence |
getStringValue()
Return the string value of the current node.
|
AxisIterator |
iterateAxis(byte axis,
NodeTest test)
Return an iterator over an axis, starting at the current node.
|
boolean |
moveNext()
Move to the next node, without returning it.
|
int |
position()
Get the current position
|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
getAnother, next
protected int position
protected NodeInfo current
public boolean moveNext()
moveNext
???? AxisIterator
public Item current()
current
???? SequenceIterator
current
???? UnfailingIterator
public final int position()
position
???? SequenceIterator
position
???? 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
???? SequenceIterator
public AxisIterator iterateAxis(byte axis, NodeTest test)
iterateAxis
???? AxisIterator
axis
- the axis to iterate over, using a constant such as
Axis.CHILD
test
- a predicate to apply to the nodes before returning them.public Value atomize() throws XPathException
atomize
???? AxisIterator
java.lang.NullPointerException
- if there is no current nodeXPathException
public java.lang.CharSequence getStringValue()
getStringValue
???? AxisIterator
java.lang.NullPointerException
- if there is no current nodepublic int getProperties()
getProperties
???? 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.