Package org.apache.xalan.xsltc.dom
Class FilterIterator
- java.lang.Object
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- org.apache.xml.dtm.ref.DTMAxisIteratorBase
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- org.apache.xalan.xsltc.dom.FilterIterator
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- All Implemented Interfaces:
java.lang.Cloneable
,DTMAxisIterator
public final class FilterIterator extends DTMAxisIteratorBase
Similar to a CurrentNodeListIterator except that the filter has a simpler interface (only needs the node, no position, last, etc.) It takes a source iterator and a Filter object and returns nodes from the source after filtering them by calling filter.test(node).- Author:
- Jacek Ambroziak, Santiago Pericas-Geertsen
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Field Summary
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Fields inherited from interface org.apache.xml.dtm.DTMAxisIterator
END
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Constructor Summary
Constructors Constructor Description FilterIterator(DTMAxisIterator source, DTMFilter filter)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description DTMAxisIterator
cloneIterator()
Returns a deep copy of this iterator.void
gotoMark()
Restores the current node remembered by setMark().boolean
isReverse()
int
next()
Get the next node in the iteration.DTMAxisIterator
reset()
Resets the iterator to the last start node.void
setMark()
Remembers the current node for the next call to gotoMark().void
setRestartable(boolean isRestartable)
Set if restartable.DTMAxisIterator
setStartNode(int node)
Set start to END should 'close' the iterator, i.e. subsequent call to next() should return END.-
Methods inherited from class org.apache.xml.dtm.ref.DTMAxisIteratorBase
getAxis, getLast, getNodeByPosition, getPosition, getStartNode, includeSelf, isDocOrdered
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Constructor Detail
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FilterIterator
public FilterIterator(DTMAxisIterator source, DTMFilter filter)
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Method Detail
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isReverse
public boolean isReverse()
- Specified by:
isReverse
in interfaceDTMAxisIterator
- Overrides:
isReverse
in classDTMAxisIteratorBase
- Returns:
- true if this iterator has a reversed axis, else false
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setRestartable
public void setRestartable(boolean isRestartable)
Description copied from interface:DTMAxisIterator
Set if restartable.- Specified by:
setRestartable
in interfaceDTMAxisIterator
- Overrides:
setRestartable
in classDTMAxisIteratorBase
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cloneIterator
public DTMAxisIterator cloneIterator()
Description copied from class:DTMAxisIteratorBase
Returns a deep copy of this iterator. Cloned iterators may not be restartable. The iterator being cloned may or may not become non-restartable as a side effect of this operation.- Specified by:
cloneIterator
in interfaceDTMAxisIterator
- Overrides:
cloneIterator
in classDTMAxisIteratorBase
- Returns:
- a deep copy of this iterator.
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reset
public DTMAxisIterator reset()
Description copied from interface:DTMAxisIterator
Resets the iterator to the last start node.- Specified by:
reset
in interfaceDTMAxisIterator
- Overrides:
reset
in classDTMAxisIteratorBase
- Returns:
- A DTMAxisIterator which has been reset to the start node, which may or may not be the same as this iterator.
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next
public int next()
Description copied from interface:DTMAxisIterator
Get the next node in the iteration.- Returns:
- The next node handle in the iteration, or END.
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setStartNode
public DTMAxisIterator setStartNode(int node)
Description copied from interface:DTMAxisIterator
Set start to END should 'close' the iterator, i.e. subsequent call to next() should return END.- Parameters:
node
- Sets the root of the iteration.- Returns:
- A DTMAxisIterator set to the start of the iteration.
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setMark
public void setMark()
Description copied from interface:DTMAxisIterator
Remembers the current node for the next call to gotoMark().
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gotoMark
public void gotoMark()
Description copied from interface:DTMAxisIterator
Restores the current node remembered by setMark().
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