001/* =========================================================== 002 * JFreeChart : a free chart library for the Java(tm) platform 003 * =========================================================== 004 * 005 * (C) Copyright 2000-2013, 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 * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 025 * Other names may be trademarks of their respective owners.] 026 * 027 * ------------------------- 028 * LengthConstraintType.java 029 * ------------------------- 030 * (C) Copyright 2005-2008, by Object Refinery Limited. 031 * 032 * Original Author: David Gilbert (for Object Refinery Limited); 033 * Contributor(s): -; 034 * 035 * Changes: 036 * -------- 037 * 08-Feb-2004 : Version 1 (DG); 038 * 039 */ 040 041package org.jfree.chart.block; 042 043import java.io.ObjectStreamException; 044import java.io.Serializable; 045 046/** 047 * Defines tokens used to indicate a length constraint type. 048 */ 049public final class LengthConstraintType implements Serializable { 050 051 /** For serialization. */ 052 private static final long serialVersionUID = -1156658804028142978L; 053 054 /** NONE. */ 055 public static final LengthConstraintType NONE 056 = new LengthConstraintType("LengthConstraintType.NONE"); 057 058 /** Range. */ 059 public static final LengthConstraintType RANGE 060 = new LengthConstraintType("RectangleConstraintType.RANGE"); 061 062 /** FIXED. */ 063 public static final LengthConstraintType FIXED 064 = new LengthConstraintType("LengthConstraintType.FIXED"); 065 066 /** The name. */ 067 private String name; 068 069 /** 070 * Private constructor. 071 * 072 * @param name the name. 073 */ 074 private LengthConstraintType(String name) { 075 this.name = name; 076 } 077 078 /** 079 * Returns a string representing the object. 080 * 081 * @return The string. 082 */ 083 @Override 084 public String toString() { 085 return this.name; 086 } 087 088 /** 089 * Returns <code>true</code> if this object is equal to the specified 090 * object, and <code>false</code> otherwise. 091 * 092 * @param obj the object (<code>null</code> permitted). 093 * 094 * @return A boolean. 095 */ 096 @Override 097 public boolean equals(Object obj) { 098 if (this == obj) { 099 return true; 100 } 101 if (!(obj instanceof LengthConstraintType)) { 102 return false; 103 } 104 LengthConstraintType that = (LengthConstraintType) obj; 105 if (!this.name.equals(that.toString())) { 106 return false; 107 } 108 return true; 109 } 110 111 /** 112 * Returns a hash code value for the object. 113 * 114 * @return The hashcode 115 */ 116 @Override 117 public int hashCode() { 118 return this.name.hashCode(); 119 } 120 121 /** 122 * Ensures that serialization returns the unique instances. 123 * 124 * @return The object. 125 * 126 * @throws ObjectStreamException if there is a problem. 127 */ 128 private Object readResolve() throws ObjectStreamException { 129 if (this.equals(LengthConstraintType.NONE)) { 130 return LengthConstraintType.NONE; 131 } 132 else if (this.equals(LengthConstraintType.RANGE)) { 133 return LengthConstraintType.RANGE; 134 } 135 else if (this.equals(LengthConstraintType.FIXED)) { 136 return LengthConstraintType.FIXED; 137 } 138 return null; 139 } 140 141}