|
||||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | |||||||||
java.lang.Objectnet.sf.saxon.om.EmptyIterator
EmptyIterator: an iterator over an empty sequence. Since such an iterator has no state, only one instance is required; therefore a singleton instance is available via the static getInstance() method.
| Field Summary |
| Fields inherited from interface net.sf.saxon.om.SequenceIterator |
ATOMIZABLE, GROUNDED, LAST_POSITION_FINDER, LOOKAHEAD |
| Constructor Summary | |
EmptyIterator()
|
|
| Method Summary | |
Item |
current()
Get the current item, that is, the item returned by the most recent call of next(). |
SequenceIterator |
getAnother()
Get another iterator over the same items, positioned at the start. |
static EmptyIterator |
getInstance()
Get an EmptyIterator, an iterator over an empty sequence. |
int |
getLastPosition()
Get the position of the last item in the sequence. |
int |
getProperties()
Get properties of this iterator, as a bit-significant integer. |
SequenceIterator |
getReverseIterator()
Get another iterator over the same items, in reverse order. |
boolean |
hasNext()
Determine whether there are more items to come. |
Value |
materialize()
Return a Value containing all the items in the sequence returned by this SequenceIterator. |
Item |
next()
Get the next item. |
int |
position()
Get the position of the current item. |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
public EmptyIterator()
| Method Detail |
public static EmptyIterator getInstance()
public Item next()
next in interface AxisIteratorpublic Item current()
current in interface AxisIteratorpublic int position()
position in interface AxisIteratorpublic int getLastPosition()
getLastPosition in interface LastPositionFinderpublic SequenceIterator getAnother()
getAnother in interface AxisIteratorpublic SequenceIterator getReverseIterator()
getReverseIterator in interface ReversibleIteratorpublic int getProperties()
getProperties in interface SequenceIteratorSequenceIterator.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.public Value materialize()
materialize in interface GroundedIteratorpublic boolean hasNext()
hasNext in interface LookaheadIterator
|
||||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
| SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | |||||||||