001 /* =========================================================== 002 * JFreeChart : a free chart library for the Java(tm) platform 003 * =========================================================== 004 * 005 * (C) Copyright 2000-2007, 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 * XYIntervalSeriesCollection.java 029 * ------------------------------- 030 * (C) Copyright 2006, 2007, by Object Refinery Limited. 031 * 032 * Original Author: David Gilbert (for Object Refinery Limited); 033 * Contributor(s): -; 034 * 035 * $Id: XYIntervalSeriesCollection.java,v 1.1.2.5 2007/02/13 16:12:46 mungady Exp $ 036 * 037 * Changes 038 * ------- 039 * 20-Oct-2006 : Version 1 (DG); 040 * 13-Feb-2007 : Provided a number of method overrides that enhance 041 * performance, and added a proper clone() 042 * implementation (DG); 043 * 044 */ 045 046 package org.jfree.data.xy; 047 048 import java.io.Serializable; 049 import java.util.List; 050 051 import org.jfree.data.general.DatasetChangeEvent; 052 import org.jfree.util.ObjectUtilities; 053 054 /** 055 * A collection of {@link XYIntervalSeries} objects. 056 * 057 * @since 1.0.3 058 * 059 * @see XYIntervalSeries 060 */ 061 public class XYIntervalSeriesCollection extends AbstractIntervalXYDataset 062 implements IntervalXYDataset, Serializable { 063 064 /** Storage for the data series. */ 065 private List data; 066 067 /** 068 * Creates a new instance of <code>XIntervalSeriesCollection</code>. 069 */ 070 public XYIntervalSeriesCollection() { 071 this.data = new java.util.ArrayList(); 072 } 073 074 /** 075 * Adds a series to the collection and sends a {@link DatasetChangeEvent} 076 * to all registered listeners. 077 * 078 * @param series the series (<code>null</code> not permitted). 079 */ 080 public void addSeries(XYIntervalSeries series) { 081 if (series == null) { 082 throw new IllegalArgumentException("Null 'series' argument."); 083 } 084 this.data.add(series); 085 series.addChangeListener(this); 086 fireDatasetChanged(); 087 } 088 089 /** 090 * Returns the number of series in the collection. 091 * 092 * @return The series count. 093 */ 094 public int getSeriesCount() { 095 return this.data.size(); 096 } 097 098 /** 099 * Returns a series from the collection. 100 * 101 * @param series the series index (zero-based). 102 * 103 * @return The series. 104 * 105 * @throws IllegalArgumentException if <code>series</code> is not in the 106 * range <code>0</code> to <code>getSeriesCount() - 1</code>. 107 */ 108 public XYIntervalSeries getSeries(int series) { 109 if ((series < 0) || (series >= getSeriesCount())) { 110 throw new IllegalArgumentException("Series index out of bounds"); 111 } 112 return (XYIntervalSeries) this.data.get(series); 113 } 114 115 /** 116 * Returns the key for a series. 117 * 118 * @param series the series index (in the range <code>0</code> to 119 * <code>getSeriesCount() - 1</code>). 120 * 121 * @return The key for a series. 122 * 123 * @throws IllegalArgumentException if <code>series</code> is not in the 124 * specified range. 125 */ 126 public Comparable getSeriesKey(int series) { 127 // defer argument checking 128 return getSeries(series).getKey(); 129 } 130 131 /** 132 * Returns the number of items in the specified series. 133 * 134 * @param series the series (zero-based index). 135 * 136 * @return The item count. 137 * 138 * @throws IllegalArgumentException if <code>series</code> is not in the 139 * range <code>0</code> to <code>getSeriesCount() - 1</code>. 140 */ 141 public int getItemCount(int series) { 142 // defer argument checking 143 return getSeries(series).getItemCount(); 144 } 145 146 /** 147 * Returns the x-value for an item within a series. 148 * 149 * @param series the series index. 150 * @param item the item index. 151 * 152 * @return The x-value. 153 */ 154 public Number getX(int series, int item) { 155 XYIntervalSeries s = (XYIntervalSeries) this.data.get(series); 156 return s.getX(item); 157 } 158 159 /** 160 * Returns the start x-value (as a double primitive) for an item within a 161 * series. 162 * 163 * @param series the series index (zero-based). 164 * @param item the item index (zero-based). 165 * 166 * @return The value. 167 */ 168 public double getStartXValue(int series, int item) { 169 XYIntervalSeries s = (XYIntervalSeries) this.data.get(series); 170 return s.getXLowValue(item); 171 } 172 173 /** 174 * Returns the end x-value (as a double primitive) for an item within a 175 * series. 176 * 177 * @param series the series index (zero-based). 178 * @param item the item index (zero-based). 179 * 180 * @return The value. 181 */ 182 public double getEndXValue(int series, int item) { 183 XYIntervalSeries s = (XYIntervalSeries) this.data.get(series); 184 return s.getXHighValue(item); 185 } 186 187 /** 188 * Returns the y-value (as a double primitive) for an item within a 189 * series. 190 * 191 * @param series the series index (zero-based). 192 * @param item the item index (zero-based). 193 * 194 * @return The value. 195 */ 196 public double getYValue(int series, int item) { 197 XYIntervalSeries s = (XYIntervalSeries) this.data.get(series); 198 return s.getYValue(item); 199 } 200 201 /** 202 * Returns the start y-value (as a double primitive) for an item within a 203 * series. 204 * 205 * @param series the series index (zero-based). 206 * @param item the item index (zero-based). 207 * 208 * @return The value. 209 */ 210 public double getStartYValue(int series, int item) { 211 XYIntervalSeries s = (XYIntervalSeries) this.data.get(series); 212 return s.getYLowValue(item); 213 } 214 215 /** 216 * Returns the end y-value (as a double primitive) for an item within a 217 * series. 218 * 219 * @param series the series (zero-based index). 220 * @param item the item (zero-based index). 221 * 222 * @return The value. 223 */ 224 public double getEndYValue(int series, int item) { 225 XYIntervalSeries s = (XYIntervalSeries) this.data.get(series); 226 return s.getYHighValue(item); 227 } 228 229 /** 230 * Returns the y-value for an item within a series. 231 * 232 * @param series the series index. 233 * @param item the item index. 234 * 235 * @return The y-value. 236 */ 237 public Number getY(int series, int item) { 238 return new Double(getYValue(series, item)); 239 } 240 241 /** 242 * Returns the start x-value for an item within a series. 243 * 244 * @param series the series index. 245 * @param item the item index. 246 * 247 * @return The x-value. 248 */ 249 public Number getStartX(int series, int item) { 250 return new Double(getStartXValue(series, item)); 251 } 252 253 /** 254 * Returns the end x-value for an item within a series. 255 * 256 * @param series the series index. 257 * @param item the item index. 258 * 259 * @return The x-value. 260 */ 261 public Number getEndX(int series, int item) { 262 return new Double(getEndXValue(series, item)); 263 } 264 265 /** 266 * Returns the start y-value for an item within a series. This method 267 * maps directly to {@link #getY(int, int)}. 268 * 269 * @param series the series index. 270 * @param item the item index. 271 * 272 * @return The start y-value. 273 */ 274 public Number getStartY(int series, int item) { 275 return new Double(getStartYValue(series, item)); 276 } 277 278 /** 279 * Returns the end y-value for an item within a series. This method 280 * maps directly to {@link #getY(int, int)}. 281 * 282 * @param series the series index. 283 * @param item the item index. 284 * 285 * @return The end y-value. 286 */ 287 public Number getEndY(int series, int item) { 288 return new Double(getEndYValue(series, item)); 289 } 290 291 /** 292 * Tests this instance for equality with an arbitrary object. 293 * 294 * @param obj the object (<code>null</code> permitted). 295 * 296 * @return A boolean. 297 */ 298 public boolean equals(Object obj) { 299 if (obj == this) { 300 return true; 301 } 302 if (!(obj instanceof XYIntervalSeriesCollection)) { 303 return false; 304 } 305 XYIntervalSeriesCollection that = (XYIntervalSeriesCollection) obj; 306 return ObjectUtilities.equal(this.data, that.data); 307 } 308 309 /** 310 * Returns a clone of this dataset. 311 * 312 * @return A clone of this dataset. 313 * 314 * @throws CloneNotSupportedException if there is a problem cloning. 315 */ 316 public Object clone() throws CloneNotSupportedException { 317 XYIntervalSeriesCollection clone 318 = (XYIntervalSeriesCollection) super.clone(); 319 int seriesCount = getSeriesCount(); 320 clone.data = new java.util.ArrayList(seriesCount); 321 for (int i = 0; i < this.data.size(); i++) { 322 clone.data.set(i, getSeries(i).clone()); 323 } 324 return clone; 325 } 326 327 }