package org.orbeon.saxon.tree;
import org.orbeon.saxon.om.SequenceIterator;
import org.orbeon.saxon.pattern.NodeTest;

final class PrecedingSiblingEnumeration extends TreeEnumeration {
    
    public PrecedingSiblingEnumeration(NodeImpl node, NodeTest nodeTest) {
        super(node, nodeTest);
        advance();      
    }

    protected void step() {
        next = (NodeImpl)next.getPreviousSibling();
    }

    /**
    * Get another enumeration of the same nodes
    */
    
    public SequenceIterator getAnother() {
        return new PrecedingSiblingEnumeration(start, nodeTest);
    }

}

//
// The contents of this file are subject to the Mozilla Public License Version 1.0 (the "License");
// you may not use this file except in compliance with the License. You may obtain a copy of the
// License at http://www.mozilla.org/MPL/ 
//
// Software distributed under the License is distributed on an "AS IS" basis,
// WITHOUT WARRANTY OF ANY KIND, either express or implied.
// See the License for the specific language governing rights and limitations under the License. 
//
// The Original Code is: all this file. 
//
// The Initial Developer of the Original Code is Michael H. Kay.
//
// Portions created by (your name) are Copyright (C) (your legal entity). All Rights Reserved. 
//
// Contributor(s): none. 
//
