ReferenceNodeSetData.java

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 * Licensed to the Apache Software Foundation (ASF) under one
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 * to you under the Apache License, Version 2.0 (the
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 * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
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/*
 * $Id$
 */
package com.sun.org.apache.xml.internal.security.signature.reference;

import java.util.Iterator;

import org.w3c.dom.Node;

/**
 * An abstract representation of a <code>ReferenceData</code> type containing a node-set.
 */
public interface ReferenceNodeSetData extends ReferenceData {

    /**
     * Returns a read-only iterator over the nodes contained in this
     * <code>NodeSetData</code> in
     * <a href="http://www.w3.org/TR/1999/REC-xpath-19991116#dt-document-order">
     * document order</a>. Attempts to modify the returned iterator
     * via the <code>remove</code> method throw
     * <code>UnsupportedOperationException</code>.
     *
     * @return an <code>Iterator</code> over the nodes in this
     *    <code>NodeSetData</code> in document order
     */
    Iterator<Node> iterator();

}