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 }