com.icl.saxon.om
Interface NodeEnumeration
- All Known Subinterfaces:
- AxisEnumeration
- All Known Implementing Classes:
- AncestorEnumeration, AncestorEnumeration, ArrayEnumeration, AttributeEnumeration, AttributeEnumeration, ChildEnumeration, DescendantEnumeration, DescendantEnumeration, DifferenceEnumeration, DistinctEnumeration, EmptyEnumeration, FilterEnumerator, FollowingEnumeration, FollowingEnumeration, FollowingSiblingEnumeration, GroupActivation, IntersectionEnumeration, LookaheadEnumerator, NamespaceEnumeration, NamespaceEnumeration, NodeWrapper.AncestorEnumeration, PrecedingEnumeration, PrecedingEnumeration, PrecedingOrAncestorEnumeration, PrecedingSiblingEnumeration, PrecedingSiblingEnumeration, PrependIterator, SiblingEnumeration, SingletonEnumeration, SortKeyEnumeration, TreeEnumeration, UnionEnumeration
public interface NodeEnumeration
A NodeEnumeration is used to iterate over a list of nodes. It is very similar to
the standard Java Enumeration interface, except that it throws exceptions and returns
NodeInfo objects rather than general Objects. It also has extra properties allowing the
client to determine whether the nodes are in document order, etc.
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. |
hasMoreElements
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).
- Returns:
- true if there are more nodes
nextElement
NodeInfo nextElement()
throws XPathException
- 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).
- Returns:
- the next NodeInfo
- Throws:
XPathException
isSorted
boolean isSorted()
- Determine whether the nodes returned by this enumeration are known to be in document order
- Returns:
- true if the nodes are guaranteed to be in document order.
isReverseSorted
boolean isReverseSorted()
- Determine whether the nodes returned by this enumeration are known to be in
reverse document order.
- Returns:
- true if the nodes are guaranteed to be in document order.
isPeer
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.