Source Code Cross Referenced for XYItemEntity.java in  » Chart » jfreechart » org » jfree » chart » entity » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Chart » jfreechart » org.jfree.chart.entity 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /* ===========================================================
002:         * JFreeChart : a free chart library for the Java(tm) platform
003:         * ===========================================================
004:         *
005:         * (C) Copyright 2000-2005, 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:         * XYItemEntity.java
029:         * -----------------
030:         * (C) Copyright 2002-2005, by Object Refinery Limited.
031:         *
032:         * Original Author:  David Gilbert (for Object Refinery Limited);
033:         * Contributor(s):   Richard Atkinson;
034:         *                   Christian W. Zuckschwerdt;
035:         *
036:         * $Id: XYItemEntity.java,v 1.5.2.1 2005/10/25 20:41:59 mungady Exp $
037:         *
038:         * Changes:
039:         * --------
040:         * 23-May-2002 : Version 1 (DG);
041:         * 12-Jun-2002 : Added accessor methods and Javadoc comments (DG);
042:         * 26-Jun-2002 : Added getImageMapAreaTag() method (DG);
043:         * 05-Aug-2002 : Added new constructor to populate URLText
044:         *               Moved getImageMapAreaTag() to ChartEntity (superclass) (RA);
045:         * 03-Oct-2002 : Fixed errors reported by Checkstyle (DG);
046:         * 30-Jun-2003 : Added XYDataset reference (CZ);
047:         * 20-May-2004 : Added equals() and clone() methods and implemented 
048:         *               Serializable (DG);
049:         * 11-Jan-2005 : Removed deprecated code in preparation for 1.0.0 release (DG);
050:         *
051:         */
052:
053:        package org.jfree.chart.entity;
054:
055:        import java.awt.Shape;
056:
057:        import org.jfree.data.xy.XYDataset;
058:
059:        /**
060:         * A chart entity that represents one item within an 
061:         * {@link org.jfree.chart.plot.XYPlot}.
062:         */
063:        public class XYItemEntity extends ChartEntity {
064:
065:            /** For serialization. */
066:            private static final long serialVersionUID = -3870862224880283771L;
067:
068:            /** The dataset. */
069:            private transient XYDataset dataset;
070:
071:            /** The series. */
072:            private int series;
073:
074:            /** The item. */
075:            private int item;
076:
077:            /**
078:             * Creates a new entity.
079:             *
080:             * @param area  the area.
081:             * @param dataset  the dataset.
082:             * @param series  the series (zero-based index).
083:             * @param item  the item (zero-based index).
084:             * @param toolTipText  the tool tip text.
085:             * @param urlText  the URL text for HTML image maps.
086:             */
087:            public XYItemEntity(Shape area, XYDataset dataset, int series,
088:                    int item, String toolTipText, String urlText) {
089:                super (area, toolTipText, urlText);
090:                this .dataset = dataset;
091:                this .series = series;
092:                this .item = item;
093:            }
094:
095:            /**
096:             * Returns the dataset this entity refers to.
097:             *
098:             * @return The dataset.
099:             */
100:            public XYDataset getDataset() {
101:                return this .dataset;
102:            }
103:
104:            /**
105:             * Sets the dataset this entity refers to.
106:             *
107:             * @param dataset  the dataset.
108:             */
109:            public void setDataset(XYDataset dataset) {
110:                this .dataset = dataset;
111:            }
112:
113:            /**
114:             * Returns the series index.
115:             *
116:             * @return The series index.
117:             */
118:            public int getSeriesIndex() {
119:                return this .series;
120:            }
121:
122:            /**
123:             * Sets the series index.
124:             *
125:             * @param series the series index (zero-based).
126:             */
127:            public void setSeriesIndex(int series) {
128:                this .series = series;
129:            }
130:
131:            /**
132:             * Returns the item index.
133:             *
134:             * @return The item index.
135:             */
136:            public int getItem() {
137:                return this .item;
138:            }
139:
140:            /**
141:             * Sets the item index.
142:             *
143:             * @param item the item index (zero-based).
144:             */
145:            public void setItem(int item) {
146:                this .item = item;
147:            }
148:
149:            /**
150:             * Tests the entity for equality with an arbitrary object.
151:             * 
152:             * @param obj  the object (<code>null</code> permitted).
153:             * 
154:             * @return A boolean.
155:             */
156:            public boolean equals(Object obj) {
157:                if (obj == this ) {
158:                    return true;
159:                }
160:                if (obj instanceof  XYItemEntity && super .equals(obj)) {
161:                    XYItemEntity ie = (XYItemEntity) obj;
162:                    if (this .series != ie.series) {
163:                        return false;
164:                    }
165:                    if (this .item != ie.item) {
166:                        return false;
167:                    }
168:                    return true;
169:                }
170:                return false;
171:            }
172:
173:            /**
174:             * Returns a string representation of this instance, useful for debugging
175:             * purposes.
176:             * 
177:             * @return A string.
178:             */
179:            public String toString() {
180:                return "XYItemEntity: series = " + getSeriesIndex()
181:                        + ", item = " + getItem() + ", dataset = "
182:                        + getDataset();
183:            }
184:
185:        }
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