namednodemapimpl.java

数据仓库工具

/*
    Copyright (C) 2003  Together

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

package org.enhydra.xml;

import java.util.Iterator;
import java.util.List;

import org.w3c.dom.Document;
import org.w3c.dom.DOMException;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;


/**
 *
 * @version 1.0
 */
class NamedNodeMapImpl implements NamedNodeMap {

	/**
	 * List of <code>Node</code>s.
	 */
	List nodes;


	/**
	 * Constructs new <code>NamedNodeMapImpl</code> with the given list of nodes.
	 * @param nodes list of nodes.
	 */
	public NamedNodeMapImpl(List nodes) {
		this.nodes = nodes;
	}

	/**
	 * Returns the count of nodes.
	 *
	 * @return the count of nodes.
	 */
	public int getLength() {
		return nodes.size();
	}


	/**
	 * Returns the <code>Node</code> with the given name.
	 *
	 * @param name the node name.
	 *
	 * @return the <code>Node</code> with the given name.
	 */
    public Node getNamedItem(String name) {
        Iterator iter = nodes.iterator();
        while (iter.hasNext()) {
            Node node = (Node)iter.next();
            if (name.equals(node.getNodeName())) {
                return node;
            }
        }

        return null;
    }

	/**
	 * Returns the <code>Node</code> with the given index.
	 *
	 * @param index index of a node.
	 * @return the <code>Node</code> with the given index.
	 */
	public Node item(int index) {
		Node node = (Node) nodes.get(index);
		return node;
	}

	public Node removeNamedItem(java.lang.String name) {
		throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR, "This NamedNodeMap is read-only!");
	}

	public Node setNamedItem(Node arg) {
		throw new DOMException(DOMException.NO_MODIFICATION_ALLOWED_ERR, "This NamedNodeMap is read-only!");
	}

	public Node getNamedItemNS(String namespaceURI, String localName) {
		return getNamedItem(localName);
	}


	/**
	 * Equivalent to <code>setNamedItem(arg)</code>.
         * @param arg is node
         * @return node
	 */
	public Node setNamedItemNS(Node arg) {
		return setNamedItem(arg);
	}


	/**
	 * Equivalent to <code>removeNamedItem(localName)</code>.
         * @param namespaceURI is name space
         * @param localName is string
         * @return node
	 */
	public Node removeNamedItemNS(String namespaceURI, String localName) {
		return removeNamedItem(localName);
	}

}