Package com.icl.saxon.om
Class EmptyEnumeration
- java.lang.Object
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- com.icl.saxon.om.EmptyEnumeration
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- All Implemented Interfaces:
LastPositionFinder
,AxisEnumeration
,NodeEnumeration
public class EmptyEnumeration extends java.lang.Object implements AxisEnumeration
EmptyEnumeration: an enumeration of an empty node-set
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Constructor Summary
Constructors Constructor Description EmptyEnumeration()
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static EmptyEnumeration
getInstance()
Return an instance of an EmptyEnumerationint
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 node in sequence.
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Method Detail
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getInstance
public static EmptyEnumeration getInstance()
Return an instance of an EmptyEnumeration
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hasMoreElements
public boolean hasMoreElements()
Description copied from interface:AxisEnumeration
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()
Description copied from interface:AxisEnumeration
Get the next node in sequence.
(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:
nextElement
in interfaceAxisEnumeration
- Specified by:
nextElement
in interfaceNodeEnumeration
- Returns:
- the next NodeInfo
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isSorted
public boolean isSorted()
Description copied from interface:NodeEnumeration
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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isReverseSorted
public boolean isReverseSorted()
Description copied from interface:NodeEnumeration
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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isPeer
public boolean isPeer()
Description copied from interface:NodeEnumeration
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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getLastPosition
public int getLastPosition()
Description copied from interface:AxisEnumeration
Get the last position- Specified by:
getLastPosition
in interfaceAxisEnumeration
- Specified by:
getLastPosition
in interfaceLastPositionFinder
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