valueobjelement.java

Java的面向对象数据库系统的源代码

// You can redistribute this software and/or modify it under the terms of
// the Ozone Core License version 1 published by ozone-db.org.
//
// The original code and portions created by SMB are
// Copyright (C) 1997-@year@ by SMB GmbH. All rights reserved.
//
// $Id: ValueObjElement.java,v 1.3 2002/09/18 06:54:17 per_nyfelt Exp $

package org.ozoneDB.core.xml;

import org.xml.sax.*;
import org.ozoneDB.OzoneProxy;

/**
 * This class saves all attributes of the valueObjElement.
 *
 * @version $Revision: 1.3 $
 * @author <a href="http://www.softwarebuero.de">SMB</a>
 */
public class ValueObjElement implements Consts {

    //
    // member
    //

    /**
     * The type of the valueObj.
     */
	private String type;

    /**
     * The id of the valueObj.
     */
	private String id;

    /**
     */
	private Object obj;

    //
    // constructor
    //

    /**
     * The constructor creates a new instance of the obj with this className.
     */
	public ValueObjElement () {
	}

    /**
     * This constructor creates a proper ValueObjElement object,
     * containing an OzoneProxy.
     *
     * @param proxy (an OzoneProxy)
     */
	public ValueObjElement (OzoneProxy proxy) {
	   this.obj = proxy;
	   this.type = proxy.getClass().getName();
	}

    /**
     * The constructor creates a new instance of the obj with this className.
     *
     * @param atts (the attributes)
     */
	public ValueObjElement (Attributes atts)
	throws ClassNotFoundException, InstantiationException, IllegalAccessException {
		type = atts.getValue(ATTR_TYPE);
		id = atts.getValue(ATTR_ID);

		Class objClass = Thread.currentThread().getContextClassLoader().loadClass(type);
		obj = objClass.newInstance();
	}

    //
    // methods
    //

    /**
     */
	public String getType() {
		return type;
	}

    /**
     */
	public String getId() {
		return id;
	}

    /**
     */
	public Object getObject() {
	    return obj;
	}

    /**
     */
	public String toString() {
		return ("ValueObjElement: " + type);
	}
}