hashmapnamednodemap.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.ArrayList;
import java.util.HashMap;

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



/**
 * @author Tweety
 *
 * A class representing a node in a meta-data tree, which implements
 * the <a href="../../../../api/org/w3c/dom/NamedNodeMap.html">
 *
 * @version 1.0
 */
class HashMapNamedNodeMap extends NamedNodeMapImpl {


	/**
	 * HashMap of <code>Node</code> items.
	 */
	HashMap hNodes;


	/**
	 * Constructs a <code>HashMapNamedNodeMap</code> from the given <code>HashMap</code>.
	 *
	 * @param nodes , as a <code>HashMap</code>.
	 */
	public HashMapNamedNodeMap(HashMap nodes) {
		super(new ArrayList(nodes.values()));
		this.hNodes = nodes;
	}


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


	/**
	 * Returns the <code>Node</code> item with the given name.
	 *
	 * @param name <code>Node</code> name.
	 *
	 * @return <code>Node</code> item with the given name.
	 */
	public Node getNamedItem(String name) {
		return (Node) hNodes.get(name);
	}

}