public class SingleNodeIterator extends java.lang.Object implements AxisIterator, UnfailingIterator, ReversibleIterator, LastPositionFinder, GroundedIterator, LookaheadIterator
GROUNDED, LAST_POSITION_FINDER, LOOKAHEAD
?????? | ????? |
---|---|
Value |
atomize()
Return the atomized value of the current node.
|
void |
close()
Close the iterator.
|
Item |
current()
Get the current item in the sequence.
|
SequenceIterator |
getAnother()
Get another iterator over the same sequence of items, positioned at the
start of the sequence.
|
int |
getLastPosition()
Get the last position (that is, the number of items in the sequence).
|
int |
getProperties()
Get properties of this iterator, as a bit-significant integer.
|
SequenceIterator |
getReverseIterator()
Get a new SequenceIterator that returns the same items in reverse order.
|
java.lang.CharSequence |
getStringValue()
Return the string value of the current node.
|
Item |
getValue() |
boolean |
hasNext()
Determine whether there are more items to come.
|
AxisIterator |
iterateAxis(byte axis,
NodeTest test)
Return an iterator over an axis, starting at the current node.
|
static AxisIterator |
makeIterator(NodeInfo item)
Factory method.
|
GroundedValue |
materialize()
Return a Value containing all the items in the sequence returned by this
SequenceIterator
|
boolean |
moveNext()
Move to the next node, without returning it.
|
Item |
next()
Get the next item in the sequence.
|
int |
position()
Return the current position in the sequence.
|
public static AxisIterator makeIterator(NodeInfo item)
item
- the item to iterate overpublic boolean hasNext()
hasNext
???? LookaheadIterator
public boolean moveNext()
moveNext
???? AxisIterator
public Item next()
UnfailingIterator
next
???? SequenceIterator
next
???? UnfailingIterator
public Item current()
UnfailingIterator
current
???? SequenceIterator
current
???? UnfailingIterator
public int position()
position
???? SequenceIterator
position
???? UnfailingIterator
public int getLastPosition()
LastPositionFinder
SequenceIterator.LAST_POSITION_FINDER
getLastPosition
???? LastPositionFinder
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 SequenceIterator getAnother()
UnfailingIterator
getAnother
???? SequenceIterator
getAnother
???? UnfailingIterator
public SequenceIterator getReverseIterator()
ReversibleIterator
getReverseIterator
???? ReversibleIterator
public Item getValue()
public GroundedValue materialize()
materialize
???? GroundedIterator
public 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.