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java.lang.Object net.sf.saxon.tree.iter.ListIterator<T>
public class ListIterator<T extends Item>
Class ListIterator, iterates over a sequence of items held in a Java List
Field Summary |
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Fields inherited from interface net.sf.saxon.om.SequenceIterator |
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GROUNDED, LAST_POSITION_FINDER, LOOKAHEAD |
Constructor Summary | |
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ListIterator(List<T> list)
Create a ListIterator over a given List |
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ListIterator(List<T> list,
int length)
Create a ListIterator over the leading part of a given List |
Method Summary | |
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void |
close()
Close the iterator. |
T |
current()
Get the current item in the sequence. |
ListIterator<T> |
getAnother()
Get another iterator over the same sequence of items, positioned at the start of the sequence. |
int |
getLength()
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. |
boolean |
hasNext()
Determine whether there are more items to come. |
GroundedValue<T> |
materialize()
Return a SequenceValue containing all the items in the sequence returned by this SequenceIterator |
T |
next()
Get the next item in the sequence. |
int |
position()
Get the current position |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public ListIterator(List<T> list)
list
- the list: all objects in the list must be instances of Item
public ListIterator(List<T> list, int length)
list
- the list: all objects in the list must be instances of Item
length
- the number of items to be includedMethod Detail |
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public boolean hasNext()
LookaheadIterator
SequenceIterator.LOOKAHEAD
hasNext
in interface LookaheadIterator<T extends Item>
public T next()
UnfailingIterator
next
in interface SequenceIterator<T extends Item>
next
in interface UnfailingIterator<T extends Item>
public T current()
UnfailingIterator
current
in interface SequenceIterator<T extends Item>
current
in interface UnfailingIterator<T extends Item>
public int position()
UnfailingIterator
position
in interface SequenceIterator<T extends Item>
position
in interface UnfailingIterator<T extends Item>
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<T extends Item>
public int getLength()
LastPositionFinder
SequenceIterator.LAST_POSITION_FINDER
getLength
in interface LastPositionFinder<T extends Item>
public ListIterator<T> getAnother()
UnfailingIterator
getAnother
in interface SequenceIterator<T extends Item>
getAnother
in interface UnfailingIterator<T extends Item>
public int getProperties()
getProperties
in interface SequenceIterator<T extends Item>
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.public GroundedValue<T> materialize()
materialize
in interface GroundedIterator<T extends Item>
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