PrecedingOrAncestorEnumeration.java

package client.net.sf.saxon.ce.tree.linked;
import client.net.sf.saxon.ce.om.SequenceIterator;
import client.net.sf.saxon.ce.pattern.NodeTest;

/**
* This axis cannot be requested directly in an XPath expression
* but is used when evaluating xsl:number. It is provided because
* taking the union of the two axes would be very inefficient
*/

final class PrecedingOrAncestorEnumeration extends TreeEnumeration {


    public PrecedingOrAncestorEnumeration(NodeImpl node, NodeTest nodeTest) {
        super(node, nodeTest);
        advance();   
    }

    protected void step() {
        next = next.getPreviousInDocument();
    }

    /**
    * Get another iterator over the same nodes
    */
    
    public SequenceIterator getAnother() {
        return new PrecedingOrAncestorEnumeration(start, nodeTest);
    }

}

// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. 
// If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
// This Source Code Form is “Incompatible With Secondary Licenses”, as defined by the Mozilla Public License, v. 2.0.