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 * AreaRendererEndType.java 029 * ------------------------ 030 * (C) Copyright 2004-2008, by Object Refinery Limited. 031 * 032 * Original Author: David Gilbert (for Object Refinery Limited); 033 * Contributor(s): -; 034 * 035 * Changes: 036 * -------- 037 * 29-April-2004 : Version 1 (DG); 038 * 039 */ 040 041 package org.jfree.chart.renderer; 042 043 import java.io.ObjectStreamException; 044 import java.io.Serializable; 045 046 /** 047 * An enumeration of the 'end types' for an area renderer. 048 */ 049 public final class AreaRendererEndType implements Serializable { 050 051 /** For serialization. */ 052 private static final long serialVersionUID = -1774146392916359839L; 053 054 /** 055 * The area tapers from the first or last value down to zero. 056 */ 057 public static final AreaRendererEndType TAPER = new AreaRendererEndType( 058 "AreaRendererEndType.TAPER"); 059 060 /** 061 * The area is truncated at the first or last value. 062 */ 063 public static final AreaRendererEndType TRUNCATE = new AreaRendererEndType( 064 "AreaRendererEndType.TRUNCATE"); 065 066 /** 067 * The area is levelled at the first or last value. 068 */ 069 public static final AreaRendererEndType LEVEL = new AreaRendererEndType( 070 "AreaRendererEndType.LEVEL"); 071 072 /** The name. */ 073 private String name; 074 075 /** 076 * Private constructor. 077 * 078 * @param name the name. 079 */ 080 private AreaRendererEndType(String name) { 081 this.name = name; 082 } 083 084 /** 085 * Returns a string representing the object. 086 * 087 * @return The string. 088 */ 089 public String toString() { 090 return this.name; 091 } 092 093 /** 094 * Returns <code>true</code> if this object is equal to the specified 095 * object, and <code>false</code> otherwise. 096 * 097 * @param obj the object (<code>null</code> permitted). 098 * 099 * @return A boolean. 100 */ 101 public boolean equals(Object obj) { 102 103 if (this == obj) { 104 return true; 105 } 106 if (!(obj instanceof AreaRendererEndType)) { 107 return false; 108 } 109 110 AreaRendererEndType t = (AreaRendererEndType) obj; 111 if (!this.name.equals(t.toString())) { 112 return false; 113 } 114 115 return true; 116 117 } 118 119 /** 120 * Ensures that serialization returns the unique instances. 121 * 122 * @return The object. 123 * 124 * @throws ObjectStreamException if there is a problem. 125 */ 126 private Object readResolve() throws ObjectStreamException { 127 Object result = null; 128 if (this.equals(AreaRendererEndType.LEVEL)) { 129 result = AreaRendererEndType.LEVEL; 130 } 131 else if (this.equals(AreaRendererEndType.TAPER)) { 132 result = AreaRendererEndType.TAPER; 133 } 134 else if (this.equals(AreaRendererEndType.TRUNCATE)) { 135 result = AreaRendererEndType.TRUNCATE; 136 } 137 return result; 138 } 139 140 }