: Class UnionEnumeration
com.icl.saxon.expr
Class UnionEnumeration
java.lang.Object
|
+--com.icl.saxon.expr.UnionEnumeration
All Implemented Interfaces: NodeEnumeration
public class UnionEnumeration extends java.lang.Objectimplements NodeEnumeration
An enumeration representing a nodeset that is a union of two other NodeSets.
Method Summary
boolean
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 order
NodeInfo
nextElement ()
Get the next node in sequence.
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
UnionEnumeration
public UnionEnumeration (NodeEnumeration p1,
NodeEnumeration p2,
Controller controller)
throws XPathException
hasMoreElements
public boolean hasMoreElements ()
Description copied from interface: NodeEnumeration
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 interface NodeEnumeration
Following copied from interface: com.icl.saxon.om.NodeEnumeration
Returns: true if there are more nodes
nextElement
public NodeInfo nextElement ()
throws XPathException
Description copied from interface: NodeEnumeration
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 interface NodeEnumeration
Following copied from interface: com.icl.saxon.om.NodeEnumeration
Returns: the next NodeInfo
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 interface NodeEnumeration
Following copied from interface: com.icl.saxon.om.NodeEnumeration
Returns: true if the nodes are guaranteed to be in document order.
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 interface NodeEnumeration
Following copied from interface: com.icl.saxon.om.NodeEnumeration
Returns: true if the nodes are guaranteed to be in document order.
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 interface NodeEnumeration