Class Sets


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

    • Method Detail

      • 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