jfreechart example source code file (DateTickMarkPosition.java)

This example jfreechart source code file (DateTickMarkPosition.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - jfreechart tags/keywords

datetickmarkposition, datetickmarkposition, end, io, middle, middle, object, object, objectstreamexception, serializable, start, string, string

The jfreechart DateTickMarkPosition.java source code

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2008, by Object Refinery Limited and Contributors.
 *
 * Project Info:  http://www.jfree.org/jfreechart/index.html
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
 * in the United States and other countries.]
 *
 * -------------------------
 * DateTickMarkPosition.java
 * -------------------------
 * (C) Copyright 2003-2008, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes:
 * --------
 * 30-Apr-2003 : Version 1 (DG);
 *
 */

package org.jfree.chart.axis;

import java.io.ObjectStreamException;
import java.io.Serializable;

/**
 * Used to indicate the required position of tick marks on a date axis relative
 * to the underlying time period.
 */
public final class DateTickMarkPosition implements Serializable {

    /** For serialization. */
    private static final long serialVersionUID = 2540750672764537240L;

    /** Start of period. */
    public static final DateTickMarkPosition START
        = new DateTickMarkPosition("DateTickMarkPosition.START");

    /** Middle of period. */
    public static final DateTickMarkPosition MIDDLE
        = new DateTickMarkPosition("DateTickMarkPosition.MIDDLE");

    /** End of period. */
    public static final DateTickMarkPosition END
        = new DateTickMarkPosition("DateTickMarkPosition.END");

    /** The name. */
    private String name;

    /**
     * Private constructor.
     *
     * @param name  the name.
     */
    private DateTickMarkPosition(String name) {
        this.name = name;
    }

    /**
     * Returns a string representing the object.
     *
     * @return The string.
     */
    public String toString() {
        return this.name;
    }

    /**
     * Returns <code>true if this object is equal to the specified
     * object, and <code>false otherwise.
     *
     * @param obj  the other object.
     *
     * @return A boolean.
     */
    public boolean equals(Object obj) {

        if (this == obj) {
            return true;
        }
        if (!(obj instanceof DateTickMarkPosition)) {
            return false;
        }
        DateTickMarkPosition position = (DateTickMarkPosition) obj;
        if (!this.name.equals(position.toString())) {
            return false;
        }
        return true;

    }

    /**
     * Ensures that serialization returns the unique instances.
     *
     * @return The object.
     *
     * @throws ObjectStreamException if there is a problem.
     */
    private Object readResolve() throws ObjectStreamException {
        if (this.equals(DateTickMarkPosition.START)) {
            return DateTickMarkPosition.START;
        }
        else if (this.equals(DateTickMarkPosition.MIDDLE)) {
            return DateTickMarkPosition.MIDDLE;
        }
        else if (this.equals(DateTickMarkPosition.END)) {
            return DateTickMarkPosition.END;
        }
        return null;
    }


}