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java.lang.Object net.sf.saxon.tree.iter.AxisIteratorOverSequence<T>
public class AxisIteratorOverSequence<T extends NodeInfo>
This class wraps any SequenceIterator as an AxisIterator. It must only be used if it is known that the underlying SequenceIterator will always return nodes, and will never throw an exception.
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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AxisIteratorOverSequence(SequenceIterator<T> base)
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Method Summary | |
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Value |
atomize()
Return the atomized value of the current node. |
void |
close()
Close the iterator. |
T |
current()
Get the current node in the sequence. |
AxisIterator<T> |
getAnother()
Get another iterator over the same sequence of items, positioned at the start of the sequence. |
int |
getProperties()
Get properties of this iterator, as a bit-significant integer. |
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. |
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 AxisIteratorOverSequence(SequenceIterator<T> base)
Method Detail |
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public T next()
UnfailingIterator
next
in interface SequenceIterator<T extends NodeInfo>
next
in interface AxisIterator<T extends NodeInfo>
next
in interface UnfailingIterator<T extends NodeInfo>
public AxisIterator<T> getAnother()
UnfailingIterator
getAnother
in interface SequenceIterator<T extends NodeInfo>
getAnother
in interface AxisIterator<T extends NodeInfo>
getAnother
in interface UnfailingIterator<T extends NodeInfo>
public boolean moveNext()
moveNext
in interface AxisIterator<T extends NodeInfo>
public T current()
current
in interface SequenceIterator<T extends NodeInfo>
current
in interface AxisIterator<T extends NodeInfo>
current
in interface UnfailingIterator<T extends NodeInfo>
public final int position()
position
in interface SequenceIterator<T extends NodeInfo>
position
in interface UnfailingIterator<T extends NodeInfo>
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 NodeInfo>
public AxisIterator iterateAxis(byte axis, NodeTest test)
iterateAxis
in interface AxisIterator<T extends NodeInfo>
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
in interface AxisIterator<T extends NodeInfo>
NullPointerException
- if there is no current node
XPathException
- if the current node
cannot be atomized, for example because it is an element node with
element-only content.public CharSequence getStringValue()
getStringValue
in interface AxisIterator<T extends NodeInfo>
NullPointerException
- if there is no current nodepublic int getProperties()
getProperties
in interface SequenceIterator<T extends NodeInfo>
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.
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