Source for org.jfree.data.xy.XYIntervalSeriesCollection

   1: /* ===========================================================
   2:  * JFreeChart : a free chart library for the Java(tm) platform
   3:  * ===========================================================
   4:  *
   5:  * (C) Copyright 2000-2007, by Object Refinery Limited and Contributors.
   6:  *
   7:  * Project Info:  http://www.jfree.org/jfreechart/index.html
   8:  *
   9:  * This library is free software; you can redistribute it and/or modify it 
  10:  * under the terms of the GNU Lesser General Public License as published by 
  11:  * the Free Software Foundation; either version 2.1 of the License, or 
  12:  * (at your option) any later version.
  13:  *
  14:  * This library is distributed in the hope that it will be useful, but 
  15:  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
  16:  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 
  17:  * License for more details.
  18:  *
  19:  * You should have received a copy of the GNU Lesser General Public
  20:  * License along with this library; if not, write to the Free Software
  21:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
  22:  * USA.  
  23:  *
  24:  * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
  25:  * in the United States and other countries.]
  26:  *
  27:  * -------------------------------
  28:  * XYIntervalSeriesCollection.java
  29:  * -------------------------------
  30:  * (C) Copyright 2006, 2007, by Object Refinery Limited.
  31:  *
  32:  * Original Author:  David Gilbert (for Object Refinery Limited);
  33:  * Contributor(s):   -;
  34:  *
  35:  * $Id: XYIntervalSeriesCollection.java,v 1.1.2.5 2007/02/13 16:12:46 mungady Exp $
  36:  *
  37:  * Changes
  38:  * -------
  39:  * 20-Oct-2006 : Version 1 (DG);
  40:  * 13-Feb-2007 : Provided a number of method overrides that enhance 
  41:  *               performance, and added a proper clone() 
  42:  *               implementation (DG);
  43:  *
  44:  */
  45: 
  46: package org.jfree.data.xy;
  47: 
  48: import java.io.Serializable;
  49: import java.util.List;
  50: 
  51: import org.jfree.data.general.DatasetChangeEvent;
  52: import org.jfree.util.ObjectUtilities;
  53: 
  54: /**
  55:  * A collection of {@link XYIntervalSeries} objects.
  56:  *
  57:  * @since 1.0.3
  58:  *
  59:  * @see XYIntervalSeries
  60:  */
  61: public class XYIntervalSeriesCollection extends AbstractIntervalXYDataset
  62:                                 implements IntervalXYDataset, Serializable {
  63: 
  64:     /** Storage for the data series. */
  65:     private List data;
  66:     
  67:     /** 
  68:      * Creates a new instance of <code>XIntervalSeriesCollection</code>. 
  69:      */
  70:     public XYIntervalSeriesCollection() {
  71:         this.data = new java.util.ArrayList();
  72:     }
  73: 
  74:     /**
  75:      * Adds a series to the collection and sends a {@link DatasetChangeEvent} 
  76:      * to all registered listeners.
  77:      *
  78:      * @param series  the series (<code>null</code> not permitted).
  79:      */
  80:     public void addSeries(XYIntervalSeries series) {
  81:         if (series == null) {
  82:             throw new IllegalArgumentException("Null 'series' argument.");
  83:         }
  84:         this.data.add(series);
  85:         series.addChangeListener(this);
  86:         fireDatasetChanged();
  87:     }
  88: 
  89:     /**
  90:      * Returns the number of series in the collection.
  91:      *
  92:      * @return The series count.
  93:      */
  94:     public int getSeriesCount() {
  95:         return this.data.size();
  96:     }
  97: 
  98:     /**
  99:      * 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: }