Class Sets

java.lang.Object
net.sf.saxon.option.exslt.Sets

public abstract class Sets extends Object
This class implements extension functions in the http://exslt.org/sets namespace.
  • Method Details

    • intersection

      public static SequenceIterator intersection(SequenceIterator p1, SequenceIterator p2) throws XPathException
      Return the intersection of two node-sets (interpreted as sequences of nodes that must be supplied in document order)
      Parameters:
      p1 - The first node-set
      p2 - The second node-set
      Returns:
      A node-set containing all nodes that are in both p1 and p2
      Throws:
      XPathException
    • difference

      public static SequenceIterator difference(SequenceIterator p1, SequenceIterator p2) throws XPathException
      Return the difference of two node-sets (interpreted as sequences of nodes that must be supplied in document order)
      Parameters:
      p1 - The first node-set
      p2 - The second node-set
      Returns:
      A node-set containing all nodes that are in p1 and not in p2
      Throws:
      XPathException
    • hasSameNode

      public static boolean hasSameNode(SequenceIterator p1, SequenceIterator p2) throws XPathException
      Determine whether two node-sets (interpreted as sequences of nodes that must be supplied in document order) contain at least one node in common
      Parameters:
      p1 - The first node-set
      p2 - The second node-set
      Returns:
      true if p1 and p2 contain at least one node in common (i.e. if the intersection is not empty)
      Throws:
      XPathException
    • leading

      public static SequenceIterator leading(XPathContext context, SequenceIterator ns1, SequenceIterator ns2) throws XPathException
      Find all the nodes in ns1 that are before the first node in ns2. Return empty set if ns2 is empty. For this function, Saxon does not assume that the two sequences of nodes are supplied in document order.
      Parameters:
      ns1 - The first node-set
      ns2 - The second node-set
      Returns:
      the nodes in the node set passed as the first argument that precede, in document order, the first node in the node set passed as the second argument.
      Throws:
      XPathException
    • trailing

      public static SequenceIterator trailing(XPathContext context, SequenceIterator ns1, SequenceIterator ns2) throws XPathException
      Find all the nodes in ns1 that are after the first node in ns2. Return ns1 if ns2 is empty,
      Parameters:
      ns1 - The first node-set
      ns2 - The second node-set
      Returns:
      the nodes in the node set passed as the first argument that follow, in document order, the first node in the node set passed as the second argument.
      Throws:
      XPathException