001 /* ===========================================================
002 * JFreeChart : a free chart library for the Java(tm) platform
003 * ===========================================================
004 *
005 * (C) Copyright 2000-2008, by Object Refinery Limited and Contributors.
006 *
007 * Project Info: http://www.jfree.org/jfreechart/index.html
008 *
009 * This library is free software; you can redistribute it and/or modify it
010 * under the terms of the GNU Lesser General Public License as published by
011 * the Free Software Foundation; either version 2.1 of the License, or
012 * (at your option) any later version.
013 *
014 * This library is distributed in the hope that it will be useful, but
015 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
016 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
017 * License for more details.
018 *
019 * You should have received a copy of the GNU Lesser General Public
020 * License along with this library; if not, write to the Free Software
021 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
022 * USA.
023 *
024 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
025 * in the United States and other countries.]
026 *
027 * -------------
028 * TickType.java
029 * -------------
030 * (C) Copyright 2007, 2008, by Object Refinery Limited.
031 *
032 * Original Author: David Gilbert (for Object Refinery Limited);
033 * Contributor(s): -;
034 *
035 * Changes:
036 * --------
037 * 02-Aug-2007 : Version 1 (DG);
038 *
039 */
040
041 package org.jfree.chart.axis;
042
043 import java.io.ObjectStreamException;
044 import java.io.Serializable;
045
046 /**
047 * Used to indicate the tick type (MAJOR or MINOR).
048 *
049 * @since 1.0.7
050 */
051 public final class TickType implements Serializable {
052
053 /** Major tick. */
054 public static final TickType MAJOR = new TickType("MAJOR");
055
056 /** Minor tick. */
057 public static final TickType MINOR = new TickType("MINOR");
058
059 /** The name. */
060 private String name;
061
062 /**
063 * Private constructor.
064 *
065 * @param name the name.
066 */
067 private TickType(String name) {
068 this.name = name;
069 }
070
071 /**
072 * Returns a string representing the object.
073 *
074 * @return The string.
075 */
076 public String toString() {
077 return this.name;
078 }
079
080 /**
081 * Returns <code>true</code> if this object is equal to the specified
082 * object, and <code>false</code> otherwise.
083 *
084 * @param obj the other object.
085 *
086 * @return A boolean.
087 */
088 public boolean equals(Object obj) {
089 if (this == obj) {
090 return true;
091 }
092 if (!(obj instanceof TickType)) {
093 return false;
094 }
095
096 TickType that = (TickType) obj;
097 if (!this.name.equals(that.name)) {
098 return false;
099 }
100 return true;
101 }
102
103 /**
104 * Ensures that serialization returns the unique instances.
105 *
106 * @return The object.
107 *
108 * @throws ObjectStreamException if there is a problem.
109 */
110 private Object readResolve() throws ObjectStreamException {
111 Object result = null;
112 if (this.equals(TickType.MAJOR)) {
113 result = TickType.MAJOR;
114 }
115 else if (this.equals(TickType.MINOR)) {
116 result = TickType.MINOR;
117 }
118 return result;
119 }
120
121 }