simpledateformatobjectdescription.java

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/* ===================================================
 * JCommon : a free general purpose Java class library
 * ===================================================
 *
 * Project Info:  http://www.jfree.org/jcommon/index.html
 * Project Lead:  David Gilbert ([e-mail]);
 *
 * (C) Copyright 2000-2003, by Object Refinery Limited and Contributors.
 *
 * 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.
 *
 * --------------------------
 * LongObjectDescription.java
 * --------------------------
 * (C)opyright 2003, by Thomas Morgner and Contributors.
 *
 * Original Author:  Thomas Morgner;
 * Contributor(s):   David Gilbert (for Object Refinery Limited);
 *
 * $Id: SimpleDateFormatObjectDescription.java,v 1.3 2003/06/03 21:49:28 mungady Exp $
 *
 * Changes (from 19-Feb-2003)
 * -------------------------
 * 19-Feb-2003 : Added standard header and Javadocs (DG);
 * 29-Apr-2003 : Destilled from the JFreeReport project and moved into JCommon
 *
 */

package org.jfree.xml.factory.objects;

import java.text.SimpleDateFormat;

/**
 * An object-description for a <code>SimpleDateFormat</code> object.
 *
 * @author Thomas Morgner
 */

public class SimpleDateFormatObjectDescription extends BeanObjectDescription {

    /**
     * Creates a new object description.
     */
    public SimpleDateFormatObjectDescription() {
        this(SimpleDateFormat.class);
    }

    /**
     * Creates a new object description.
     *
     * @param className  the class.
     */
    public SimpleDateFormatObjectDescription(Class className) {
        this(className, true);
    }

    /**
     * Creates a new object description.
     *
     * @param className  the class.
     * @param init  initialise?
     */
    public SimpleDateFormatObjectDescription(Class className, boolean init) {
        super(className, init);
        setParameterDefinition("localizedPattern", String.class);
        setParameterDefinition("pattern", String.class);
    }

    /**
     * Sets the parameters of this description object to match the supplied object.
     *
     * @param o  the object.
     *
     * @throws ObjectFactoryException if there is a problem while reading the
     * properties of the given object.
     */
    public void setParameterFromObject(Object o)
        throws ObjectFactoryException {
        super.setParameterFromObject(o);
        SimpleDateFormat format = (SimpleDateFormat) o;
        setParameter("localizedPattern", format.toLocalizedPattern());
        setParameter("pattern", format.toPattern());
    }

    /**
     * Creates an object based on this description.
     *
     * @return The object.
     */
    public Object createObject() {
        SimpleDateFormat format = (SimpleDateFormat) super.createObject();
        if (getParameter("pattern") != null) {
            format.applyPattern((String) getParameter("pattern"));
        }
        if (getParameter("localizedPattern") != null) {
            format.applyLocalizedPattern((String) getParameter("localizedPattern"));
        }
        return format;
    }

}