Package com.icl.saxon.om
Class PrependIterator
- java.lang.Object
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- com.icl.saxon.om.PrependIterator
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- All Implemented Interfaces:
LastPositionFinder
,AxisEnumeration
,NodeEnumeration
public class PrependIterator extends java.lang.Object implements AxisEnumeration
An iterator over nodes, that prepends a given node to the nodes returned by another iterator. Used to modify an iterator over axis A to one that iterates over A-OR-SELF.
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Field Summary
Fields Modifier and Type Field Description (package private) AxisEnumeration
base
(package private) int
position
(package private) NodeInfo
start
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Constructor Summary
Constructors Constructor Description PrependIterator(NodeInfo start, AxisEnumeration base)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description int
getLastPosition()
Get the last positionboolean
hasMoreElements()
Determine whether there are more nodes to come.boolean
isPeer()
Determine whether the nodes returned by this enumeration are known to be peers, that is, no node is a descendant or ancestor of another node.boolean
isReverseSorted()
Determine whether the nodes returned by this enumeration are known to be in reverse document order.boolean
isSorted()
Determine whether the nodes returned by this enumeration are known to be in document orderNodeInfo
nextElement()
Get the next item in the sequence.
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Field Detail
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start
NodeInfo start
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base
AxisEnumeration base
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position
int position
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Constructor Detail
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PrependIterator
public PrependIterator(NodeInfo start, AxisEnumeration base)
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Method Detail
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hasMoreElements
public boolean hasMoreElements()
Determine whether there are more nodes to come.
(Note the term "Element" is used here in the sense of the standard Java Enumeration class, it has nothing to do with XML elements).- Specified by:
hasMoreElements
in interfaceAxisEnumeration
- Specified by:
hasMoreElements
in interfaceNodeEnumeration
- Returns:
- true if there are more nodes
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nextElement
public NodeInfo nextElement()
Get the next item in the sequence.- Specified by:
nextElement
in interfaceAxisEnumeration
- Specified by:
nextElement
in interfaceNodeEnumeration
- Returns:
- the next Item. If there are no more nodes, return null.
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isPeer
public boolean isPeer()
Determine whether the nodes returned by this enumeration are known to be peers, that is, no node is a descendant or ancestor of another node. This significance of this property is that if a peer enumeration is applied to each node in a set derived from another peer enumeration, and if both enumerations are sorted, then the result is also sorted.- Specified by:
isPeer
in interfaceNodeEnumeration
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isReverseSorted
public boolean isReverseSorted()
Determine whether the nodes returned by this enumeration are known to be in reverse document order.- Specified by:
isReverseSorted
in interfaceNodeEnumeration
- Returns:
- true if the nodes are guaranteed to be in document order.
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isSorted
public boolean isSorted()
Determine whether the nodes returned by this enumeration are known to be in document order- Specified by:
isSorted
in interfaceNodeEnumeration
- Returns:
- true if the nodes are guaranteed to be in document order.
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getLastPosition
public int getLastPosition()
Get the last position- Specified by:
getLastPosition
in interfaceAxisEnumeration
- Specified by:
getLastPosition
in interfaceLastPositionFinder
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