jfreechart example source code file (KeyedValueComparatorType.java)

This example jfreechart source code file (KeyedValueComparatorType.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

by_key, by_key, by_value, by_value, keyedvaluecomparatortype, keyedvaluecomparatortype, string, string

The jfreechart KeyedValueComparatorType.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.]
 *
 * -----------------------------
 * KeyedValueComparatorType.java
 * -----------------------------
 * (C) Copyright 2003-2008, by Object Refinery Limited.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes:
 * --------
 * 05-Mar-2003 : Version 1 (DG);
 *
 */

package org.jfree.data;


/**
 * Used to indicate the type of a {@link KeyedValueComparator} : 'by key' or
 * 'by value'.
 */
public final class KeyedValueComparatorType {

    /** An object representing 'by key' sorting. */
    public static final KeyedValueComparatorType BY_KEY
        = new KeyedValueComparatorType("KeyedValueComparatorType.BY_KEY");

    /** An object representing 'by value' sorting. */
    public static final KeyedValueComparatorType BY_VALUE
        = new KeyedValueComparatorType("KeyedValueComparatorType.BY_VALUE");

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

    /**
     * Private constructor.
     *
     * @param name  the name.
     */
    private KeyedValueComparatorType(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 o  the other object.
     *
     * @return A boolean.
     */
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (!(o instanceof KeyedValueComparatorType)) {
            return false;
        }

        KeyedValueComparatorType type = (KeyedValueComparatorType) o;
        if (!this.name.equals(type.name)) {
            return false;
        }

        return true;
    }

    /**
     * Returns a hash code.
     *
     * @return A hash code.
     */
    public int hashCode() {
        return this.name.hashCode();
    }
}