| Clover coverage report - gsbase - 2.0.1 |
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| Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
| NotificationList.java | 81.2% | 71.4% | 50% | 67.7% |
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| 1 | /* | |
| 2 | * Copyright (c) 1998, 2005 Gargoyle Software Inc. All rights reserved. | |
| 3 | * | |
| 4 | * Redistribution and use in source and binary forms, with or without | |
| 5 | * modification, are permitted provided that the following conditions are met: | |
| 6 | * | |
| 7 | * 1. Redistributions of source code must retain the above copyright notice, | |
| 8 | * this list of conditions and the following disclaimer. | |
| 9 | * 2. Redistributions in binary form must reproduce the above copyright notice, | |
| 10 | * this list of conditions and the following disclaimer in the documentation | |
| 11 | * and/or other materials provided with the distribution. | |
| 12 | * 3. The end-user documentation included with the redistribution, if any, must | |
| 13 | * include the following acknowledgment: | |
| 14 | * | |
| 15 | * "This product includes software developed by Gargoyle Software Inc. | |
| 16 | * (http://www.GargoyleSoftware.com/)." | |
| 17 | * | |
| 18 | * Alternately, this acknowledgment may appear in the software itself, if | |
| 19 | * and wherever such third-party acknowledgments normally appear. | |
| 20 | * 4. The name "Gargoyle Software" must not be used to endorse or promote | |
| 21 | * products derived from this software without prior written permission. | |
| 22 | * For written permission, please contact info@GargoyleSoftware.com. | |
| 23 | * 5. Products derived from this software may not be called "GSBase", nor may | |
| 24 | * "GSBase" appear in their name, without prior written permission of | |
| 25 | * Gargoyle Software Inc. | |
| 26 | * | |
| 27 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, | |
| 28 | * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND | |
| 29 | * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GARGOYLE | |
| 30 | * SOFTWARE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | |
| 31 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 32 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, | |
| 33 | * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | |
| 34 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
| 35 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, | |
| 36 | * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 37 | */ | |
| 38 | package com.gargoylesoftware.base.collections; | |
| 39 | ||
| 40 | import com.gargoylesoftware.base.util.DetailedNullPointerException; | |
| 41 | import java.util.ArrayList; | |
| 42 | import java.util.Collection; | |
| 43 | import java.util.Collections; | |
| 44 | import java.util.Iterator; | |
| 45 | import java.util.List; | |
| 46 | import java.util.ListIterator; | |
| 47 | ||
| 48 | /** | |
| 49 | * This is a wrapper for a List object that fires | |
| 50 | * {@link com.gargoylesoftware.base.collections.NotificationListEvent}'s | |
| 51 | * whenever the list is modified. | |
| 52 | * | |
| 53 | * @version $Revision: 1.5 $ | |
| 54 | * @author <a href="mailto:mbowler@GargoyleSoftware.com">Mike Bowler</a> | |
| 55 | */ | |
| 56 | public class NotificationList | |
| 57 | implements | |
| 58 | List { | |
| 59 | ||
| 60 | private final List delegate_; | |
| 61 | ||
| 62 | private final List listenerList_ = new ArrayList(); | |
| 63 | ||
| 64 | /** | |
| 65 | * Construct a new NotificationList. | |
| 66 | * @param delegate The list that we will delegate requests to. | |
| 67 | */ | |
| 68 | 13 | public NotificationList( final List delegate ) { |
| 69 | 13 | delegate_ = delegate; |
| 70 | ||
| 71 | 13 | assertNotNull("delegate", delegate); |
| 72 | } | |
| 73 | ||
| 74 | /** | |
| 75 | * Appends the specified element to the end of this list (optional | |
| 76 | * operation). <p> | |
| 77 | * | |
| 78 | * Lists that support this operation may place limitations on what | |
| 79 | * elements may be added to this list. In particular, some | |
| 80 | * lists will refuse to add null elements, and others will impose | |
| 81 | * restrictions on the type of elements that may be added. List | |
| 82 | * classes should clearly specify in their documentation any restrictions | |
| 83 | * on what elements may be added. | |
| 84 | * | |
| 85 | * @param object element to be appended to this list. | |
| 86 | * @return <tt>true</tt> (as per the general contract of the | |
| 87 | * <tt>Collection.add</tt> method). | |
| 88 | * | |
| 89 | * @throws UnsupportedOperationException if the <tt>add</tt> method is not | |
| 90 | * supported by this list. | |
| 91 | */ | |
| 92 | 12 | public boolean add( final Object object ) throws UnsupportedOperationException { |
| 93 | 12 | final int startIndex = delegate_.size(); |
| 94 | 12 | final boolean rc = delegate_.add(object); |
| 95 | 12 | fireInsert( startIndex, 1 ); |
| 96 | 12 | return rc; |
| 97 | } | |
| 98 | ||
| 99 | /** | |
| 100 | * Inserts the specified element at the specified position in this list | |
| 101 | * (optional operation). Shifts the element currently at that position | |
| 102 | * (if any) and any subsequent elements to the right (adds one to their | |
| 103 | * indices). | |
| 104 | * | |
| 105 | * @param index index at which the specified element is to be inserted. | |
| 106 | * @param element element to be inserted. | |
| 107 | * | |
| 108 | * @throws UnsupportedOperationException if the <tt>add</tt> method is not | |
| 109 | * supported by this list. | |
| 110 | */ | |
| 111 | 1 | public void add(final int index, final Object element) throws UnsupportedOperationException { |
| 112 | 1 | delegate_.add(index, element); |
| 113 | 1 | fireInsert( index, 1 ); |
| 114 | } | |
| 115 | ||
| 116 | /** | |
| 117 | * Appends all of the elements in the specified collection to the end of | |
| 118 | * this list, in the order that they are returned by the specified | |
| 119 | * collection's iterator (optional operation). The behavior of this | |
| 120 | * operation is unspecified if the specified collection is modified while | |
| 121 | * the operation is in progress. (Note that this will occur if the | |
| 122 | * specified collection is this list, and it's nonempty.) | |
| 123 | * | |
| 124 | * @param collection collection whose elements are to be added to this list. | |
| 125 | * @return <tt>true</tt> if this list changed as a result of the call. | |
| 126 | * | |
| 127 | * @throws UnsupportedOperationException if the <tt>addAll</tt> method is | |
| 128 | * not supported by this list. | |
| 129 | * @see #add(Object) | |
| 130 | */ | |
| 131 | 5 | public boolean addAll( final Collection collection ) throws UnsupportedOperationException { |
| 132 | 5 | assertNotNull("collection", collection); |
| 133 | 4 | final int startIndex = delegate_.size(); |
| 134 | 4 | final boolean rc = delegate_.addAll(collection); |
| 135 | 4 | fireInsert( startIndex, collection.size() ); |
| 136 | 4 | return rc; |
| 137 | } | |
| 138 | ||
| 139 | /** | |
| 140 | * Inserts all of the elements in the specified collection into this | |
| 141 | * list at the specified position (optional operation). Shifts the | |
| 142 | * element currently at that position (if any) and any subsequent | |
| 143 | * elements to the right (increases their indices). The new elements | |
| 144 | * will appear in this list in the order that they are returned by the | |
| 145 | * specified collection's iterator. The behavior of this operation is | |
| 146 | * unspecified if the specified collection is modified while the | |
| 147 | * operation is in progress. (Note that this will occur if the specified | |
| 148 | * collection is this list, and it's nonempty.) | |
| 149 | * | |
| 150 | * @param index index at which to insert first element from the specified | |
| 151 | * collection. | |
| 152 | * @param collection elements to be inserted into this list. | |
| 153 | * @return <tt>true</tt> if this list changed as a result of the call. | |
| 154 | * | |
| 155 | * @throws UnsupportedOperationException if the <tt>addAll</tt> method is | |
| 156 | * not supported by this list. | |
| 157 | */ | |
| 158 | 2 | public boolean addAll(int index, final Collection collection) throws UnsupportedOperationException { |
| 159 | 2 | assertNotNull("collection", collection); |
| 160 | ||
| 161 | 1 | final boolean rc = delegate_.addAll(index, collection); |
| 162 | 1 | fireInsert( index, collection.size() ); |
| 163 | 1 | return rc; |
| 164 | } | |
| 165 | ||
| 166 | /** | |
| 167 | * Returns the element at the specified position in this list. | |
| 168 | * | |
| 169 | * @param index index of element to return. | |
| 170 | * @return the element at the specified position in this list. | |
| 171 | */ | |
| 172 | 22 | public Object get(final int index) { |
| 173 | 22 | return delegate_.get(index); |
| 174 | } | |
| 175 | ||
| 176 | /** | |
| 177 | * Replaces the element at the specified position in this list with the | |
| 178 | * specified element (optional operation). | |
| 179 | * | |
| 180 | * @param index index of element to replace. | |
| 181 | * @param element element to be stored at the specified position. | |
| 182 | * @return the element previously at the specified position. | |
| 183 | * | |
| 184 | * @throws UnsupportedOperationException if the <tt>set</tt> method is not | |
| 185 | * supported by this list. | |
| 186 | */ | |
| 187 | 1 | public Object set(final int index, final Object element) throws UnsupportedOperationException { |
| 188 | 1 | final List oldValues = new ArrayList(1); |
| 189 | 1 | oldValues.add(delegate_.get(index)); |
| 190 | ||
| 191 | 1 | final List newValues = new ArrayList(1); |
| 192 | 1 | newValues.add(element); |
| 193 | ||
| 194 | 1 | Object rc = delegate_.set(index, element); |
| 195 | ||
| 196 | 1 | fireChanged( index, oldValues, newValues ); |
| 197 | 1 | return rc; |
| 198 | } | |
| 199 | ||
| 200 | /** | |
| 201 | * Removes the element at the specified position in this list (optional | |
| 202 | * operation). Shifts any subsequent elements to the left (subtracts one | |
| 203 | * from their indices). Returns the element that was removed from the | |
| 204 | * list. | |
| 205 | * | |
| 206 | * @param index the index of the element to removed. | |
| 207 | * @return the element previously at the specified position. | |
| 208 | * | |
| 209 | * @throws UnsupportedOperationException if the <tt>remove</tt> method is | |
| 210 | * not supported by this list. | |
| 211 | */ | |
| 212 | 1 | public Object remove(final int index) throws UnsupportedOperationException { |
| 213 | 1 | final List objectsRemoved = new ArrayList(1); |
| 214 | 1 | objectsRemoved.add(delegate_.get(index)); |
| 215 | ||
| 216 | 1 | final Object rc = delegate_.remove(index); |
| 217 | 1 | fireRemove( index, index, objectsRemoved ); |
| 218 | 1 | return rc; |
| 219 | } | |
| 220 | ||
| 221 | /** | |
| 222 | * Removes the first occurrence in this list of the specified element | |
| 223 | * (optional operation). If this list does not contain the element, it is | |
| 224 | * unchanged. More formally, removes the element with the lowest index i | |
| 225 | * such that <tt>(o==null ? get(i)==null : o.equals(get(i)))</tt> (if | |
| 226 | * such an element exists). | |
| 227 | * | |
| 228 | * @param object element to be removed from this list, if present. | |
| 229 | * @return <tt>true</tt> if this list contained the specified element. | |
| 230 | * | |
| 231 | * @throws UnsupportedOperationException if the <tt>remove</tt> method is | |
| 232 | * not supported by this list. | |
| 233 | */ | |
| 234 | 0 | public boolean remove( final Object object ) throws UnsupportedOperationException { |
| 235 | 0 | final List objectsRemoved = new ArrayList(1); |
| 236 | 0 | objectsRemoved.add(object); |
| 237 | ||
| 238 | 0 | final int index = delegate_.indexOf(object); |
| 239 | 0 | final boolean rc = delegate_.remove(object); |
| 240 | 0 | fireRemove( index, index, objectsRemoved ); |
| 241 | 0 | return rc; |
| 242 | } | |
| 243 | ||
| 244 | /** | |
| 245 | * Removes from this list all the elements that are contained in the | |
| 246 | * specified collection (optional operation). | |
| 247 | * | |
| 248 | * <b>Implementation note</b> This is currently unsupported. | |
| 249 | * | |
| 250 | * @param collection collection that defines which elements will be removed from | |
| 251 | * this list. | |
| 252 | * @return <tt>true</tt> if this list changed as a result of the call. | |
| 253 | * | |
| 254 | * @throws UnsupportedOperationException if the <tt>removeAll</tt> method | |
| 255 | * is not supported by this list. | |
| 256 | * | |
| 257 | * @see #remove(Object) | |
| 258 | * @see #contains(Object) | |
| 259 | */ | |
| 260 | 0 | public boolean removeAll( final Collection collection ) throws UnsupportedOperationException { |
| 261 | 0 | throw new UnsupportedOperationException("Not implemented yet"); |
| 262 | //TODO: Implement this. | |
| 263 | // return delegate_.removeAll(collection); | |
| 264 | } | |
| 265 | ||
| 266 | /** | |
| 267 | * Retains only the elements in this list that are contained in the | |
| 268 | * specified collection (optional operation). In other words, removes | |
| 269 | * from this list all the elements that are not contained in the specified | |
| 270 | * collection. | |
| 271 | * | |
| 272 | * <b>Implementation note</b> This is currently unsupported. | |
| 273 | * | |
| 274 | * @param collection collection that defines which elements this set will retain. | |
| 275 | * | |
| 276 | * @return <tt>true</tt> if this list changed as a result of the call. | |
| 277 | * | |
| 278 | * @throws UnsupportedOperationException if the <tt>retainAll</tt> method | |
| 279 | * is not supported by this list. | |
| 280 | * | |
| 281 | * @see #remove(Object) | |
| 282 | * @see #contains(Object) | |
| 283 | */ | |
| 284 | 0 | public boolean retainAll( final Collection collection ) throws UnsupportedOperationException { |
| 285 | 0 | throw new UnsupportedOperationException("Not implemented yet"); |
| 286 | //TODO: Implement this. | |
| 287 | // return delegate_.retainAll(collection); | |
| 288 | } | |
| 289 | ||
| 290 | /** | |
| 291 | * Returns the index in this list of the first occurrence of the specified | |
| 292 | * element, or -1 if this list does not contain this element. | |
| 293 | * More formally, returns the lowest index <tt>i</tt> such that | |
| 294 | * <tt>(o==null ? get(i)==null : o.equals(get(i)))</tt>, | |
| 295 | * or -1 if there is no such index. | |
| 296 | * | |
| 297 | * @param object element to search for. | |
| 298 | * @return the index in this list of the first occurrence of the specified | |
| 299 | * element, or -1 if this list does not contain this element. | |
| 300 | */ | |
| 301 | 0 | public int indexOf(final Object object) { |
| 302 | 0 | return delegate_.indexOf(object); |
| 303 | } | |
| 304 | ||
| 305 | /** | |
| 306 | * Returns the index in this list of the last occurrence of the specified | |
| 307 | * element, or -1 if this list does not contain this element. | |
| 308 | * More formally, returns the highest index <tt>i</tt> such that | |
| 309 | * <tt>(o==null ? get(i)==null : o.equals(get(i)))</tt>, | |
| 310 | * or -1 if there is no such index. | |
| 311 | * | |
| 312 | * @param object element to search for. | |
| 313 | * @return the index in this list of the last occurrence of the specified | |
| 314 | * element, or -1 if this list does not contain this element. | |
| 315 | */ | |
| 316 | 0 | public int lastIndexOf(final Object object) { |
| 317 | 0 | return delegate_.lastIndexOf(object); |
| 318 | } | |
| 319 | ||
| 320 | /** | |
| 321 | * Returns a list iterator of the elements in this list (in proper | |
| 322 | * sequence). | |
| 323 | * | |
| 324 | * @return a list iterator of the elements in this list (in proper | |
| 325 | * sequence). | |
| 326 | */ | |
| 327 | 0 | public synchronized ListIterator listIterator() { |
| 328 | 0 | return delegate_.listIterator(); |
| 329 | } | |
| 330 | ||
| 331 | /** | |
| 332 | * Returns a list iterator of the elements in this list (in proper | |
| 333 | * sequence), starting at the specified position in this list. The | |
| 334 | * specified index indicates the first element that would be returned by | |
| 335 | * an initial call to the <tt>next</tt> method. An initial call to | |
| 336 | * the <tt>previous</tt> method would return the element with the | |
| 337 | * specified index minus one. | |
| 338 | * | |
| 339 | * @param index index of first element to be returned from the | |
| 340 | * list iterator (by a call to the <tt>next</tt> method). | |
| 341 | * @return a list iterator of the elements in this list (in proper | |
| 342 | * sequence), starting at the specified position in this list. | |
| 343 | */ | |
| 344 | 0 | public ListIterator listIterator(final int index) { |
| 345 | 0 | return delegate_.listIterator(index); |
| 346 | } | |
| 347 | ||
| 348 | /** | |
| 349 | * Returns a view of the portion of this list between the specified | |
| 350 | * <tt>fromIndex</tt>, inclusive, and <tt>toIndex</tt>, exclusive. (If | |
| 351 | * <tt>fromIndex</tt> and <tt>toIndex</tt> are equal, the returned list is | |
| 352 | * empty.) The returned list is backed by this list, so changes in the | |
| 353 | * returned list are reflected in this list, and vice-versa. The returned | |
| 354 | * list supports all of the optional list operations supported by this | |
| 355 | * list.<p> | |
| 356 | * | |
| 357 | * This method eliminates the need for explicit range operations (of | |
| 358 | * the sort that commonly exist for arrays). Any operation that expects | |
| 359 | * a list can be used as a range operation by passing a subList view | |
| 360 | * instead of a whole list. For example, the following idiom | |
| 361 | * removes a range of elements from a list: | |
| 362 | * <pre> | |
| 363 | * list.subList(from, to).clear(); | |
| 364 | * </pre> | |
| 365 | * Similar idioms may be constructed for <tt>indexOf</tt> and | |
| 366 | * <tt>lastIndexOf</tt>, and all of the algorithms in the | |
| 367 | * <tt>Collections</tt> class can be applied to a subList.<p> | |
| 368 | * | |
| 369 | * The semantics of this list returned by this method become undefined if | |
| 370 | * the backing list (i.e., this list) is <i>structurally modified</i> in | |
| 371 | * any way other than via the returned list. (Structural modifications are | |
| 372 | * those that change the size of this list, or otherwise perturb it in such | |
| 373 | * a fashion that iterations in progress may yield incorrect results.) | |
| 374 | * | |
| 375 | * @param fromIndex low endpoint (inclusive) of the subList. | |
| 376 | * @param toIndex high endpoint (exclusive) of the subList. | |
| 377 | * @return a view of the specified range within this list. | |
| 378 | */ | |
| 379 | 0 | public List subList(final int fromIndex, final int toIndex) { |
| 380 | 0 | return delegate_.subList(fromIndex, toIndex); |
| 381 | } | |
| 382 | ||
| 383 | /** | |
| 384 | * Returns an iterator over the elements in this list in proper sequence. | |
| 385 | * | |
| 386 | * @return an iterator over the elements in this list in proper sequence. | |
| 387 | */ | |
| 388 | 0 | public Iterator iterator() { |
| 389 | 0 | return delegate_.iterator(); |
| 390 | } | |
| 391 | ||
| 392 | /** | |
| 393 | * Returns <tt>true</tt> if this list contains all of the elements of the | |
| 394 | * specified collection. | |
| 395 | * | |
| 396 | * @param collection collection to be checked for containment in this list. | |
| 397 | * @return <tt>true</tt> if this list contains all of the elements of the | |
| 398 | * specified collection. | |
| 399 | * | |
| 400 | * @see #contains(Object) | |
| 401 | */ | |
| 402 | 0 | public boolean containsAll( final Collection collection ) { |
| 403 | 0 | return delegate_.containsAll(collection); |
| 404 | } | |
| 405 | ||
| 406 | /** | |
| 407 | * Returns <tt>true</tt> if this list contains the specified element. | |
| 408 | * More formally, returns <tt>true</tt> if and only if this list contains | |
| 409 | * at least one element <tt>e</tt> such that | |
| 410 | * <tt>(o==null ? e==null : o.equals(e))</tt>. | |
| 411 | * | |
| 412 | * @param object element whose presence in this list is to be tested. | |
| 413 | * @return <tt>true</tt> if this list contains the specified element. | |
| 414 | */ | |
| 415 | 0 | public boolean contains( final Object object ) { |
| 416 | 0 | return delegate_.contains(object); |
| 417 | } | |
| 418 | ||
| 419 | /** | |
| 420 | * Removes all of the elements from this list (optional operation). This | |
| 421 | * list will be empty after this call returns (unless it throws an | |
| 422 | * exception). | |
| 423 | * | |
| 424 | * @throws UnsupportedOperationException if the <tt>clear</tt> method is | |
| 425 | * not supported by this list. | |
| 426 | */ | |
| 427 | 0 | public void clear() throws UnsupportedOperationException { |
| 428 | 0 | delegate_.clear(); |
| 429 | } | |
| 430 | ||
| 431 | /** | |
| 432 | * Returns <tt>true</tt> if this list contains no elements. | |
| 433 | * | |
| 434 | * @return <tt>true</tt> if this list contains no elements. | |
| 435 | */ | |
| 436 | 0 | public boolean isEmpty() { |
| 437 | 0 | return delegate_.isEmpty(); |
| 438 | } | |
| 439 | ||
| 440 | /** | |
| 441 | * Returns the number of elements in this list. If this list contains | |
| 442 | * more than <tt>Integer.MAX_VALUE</tt> elements, returns | |
| 443 | * <tt>Integer.MAX_VALUE</tt>. | |
| 444 | * | |
| 445 | * @return the number of elements in this list. | |
| 446 | */ | |
| 447 | 5 | public int size() { |
| 448 | 5 | return delegate_.size(); |
| 449 | } | |
| 450 | ||
| 451 | /** | |
| 452 | * Returns an array containing all of the elements in this list in proper | |
| 453 | * sequence. Obeys the general contract of the | |
| 454 | * <tt>List.toArray</tt> method. | |
| 455 | * | |
| 456 | * @return an array containing all of the elements in this list in proper | |
| 457 | * sequence. | |
| 458 | * @see List#toArray(Object[]) | |
| 459 | */ | |
| 460 | 0 | public Object[] toArray() { |
| 461 | 0 | return delegate_.toArray(); |
| 462 | } | |
| 463 | ||
| 464 | /** | |
| 465 | * Returns an array containing all of the elements in this list in proper | |
| 466 | * sequence; the runtime type of the returned array is that of the | |
| 467 | * specified array. Obeys the general contract of the | |
| 468 | * <tt>Collection.toArray(Object[])</tt> method. | |
| 469 | * | |
| 470 | * @param array the array into which the elements of this list are to | |
| 471 | * be stored, if it is big enough; otherwise, a new array of the | |
| 472 | * same runtime type is allocated for this purpose. | |
| 473 | * @return an array containing the elements of this list. | |
| 474 | * | |
| 475 | * @throws ArrayStoreException if the runtime type of the specified array | |
| 476 | * is not a supertype of the runtime type of every element in | |
| 477 | * this list. | |
| 478 | */ | |
| 479 | 0 | public Object[] toArray( Object array[] ) throws ArrayStoreException { |
| 480 | 0 | return delegate_.toArray(array); |
| 481 | } | |
| 482 | ||
| 483 | /** | |
| 484 | * Add a NotificationListListener. | |
| 485 | * @param listener The listener to add. | |
| 486 | */ | |
| 487 | 9 | public synchronized void addNotificationListListener( |
| 488 | final NotificationListListener listener ) { | |
| 489 | ||
| 490 | 9 | assertNotNull("listener", listener); |
| 491 | ||
| 492 | 8 | listenerList_.add( listener ); |
| 493 | } | |
| 494 | ||
| 495 | /** | |
| 496 | * Remove a NotificationListListener. | |
| 497 | * @param listener The listener to remove. | |
| 498 | */ | |
| 499 | 1 | public synchronized void removeNotificationListListener( |
| 500 | final NotificationListListener listener ) { | |
| 501 | ||
| 502 | 1 | assertNotNull("listener", listener); |
| 503 | 0 | listenerList_.remove( listener ); |
| 504 | } | |
| 505 | ||
| 506 | /** | |
| 507 | * Fire an insert event. | |
| 508 | * @param startIndex The first index | |
| 509 | * @param insertCount The number of items being inserted | |
| 510 | */ | |
| 511 | 18 | private synchronized void fireInsert( final int startIndex, |
| 512 | final int insertCount ) { | |
| 513 | ||
| 514 | // Is there anything to do? | |
| 515 | 18 | if( listenerList_.isEmpty() ) { |
| 516 | 2 | return; |
| 517 | } | |
| 518 | ||
| 519 | 16 | final int endIndex = startIndex + insertCount; |
| 520 | 16 | final NotificationListEvent event |
| 521 | = new NotificationListEvent( this, | |
| 522 | NotificationListEvent.INSERT, | |
| 523 | startIndex, | |
| 524 | startIndex, | |
| 525 | Collections.EMPTY_LIST, | |
| 526 | delegate_.subList(startIndex, endIndex) ); | |
| 527 | ||
| 528 | 16 | final NotificationListListener listeners[] |
| 529 | = new NotificationListListener[listenerList_.size()]; | |
| 530 | 16 | listenerList_.toArray( listeners ); |
| 531 | ||
| 532 | 16 | int i; |
| 533 | 16 | for( i=0; i<listeners.length; i++ ) { |
| 534 | 16 | listeners[i].listElementsAdded(event); |
| 535 | } | |
| 536 | } | |
| 537 | ||
| 538 | /** | |
| 539 | * Fire a remove event. | |
| 540 | * @param startIndex The first index | |
| 541 | * @param endIndex The last index | |
| 542 | * @param objectsRemoved A list of all the objects that have been removd. | |
| 543 | */ | |
| 544 | 1 | private synchronized void fireRemove( final int startIndex, |
| 545 | final int endIndex, | |
| 546 | final List objectsRemoved) { | |
| 547 | ||
| 548 | // Is there anything to do? | |
| 549 | 1 | if( listenerList_.isEmpty() ) { |
| 550 | 0 | return; |
| 551 | } | |
| 552 | ||
| 553 | 1 | final NotificationListEvent event |
| 554 | = new NotificationListEvent( this, | |
| 555 | NotificationListEvent.REMOVE, | |
| 556 | startIndex, | |
| 557 | endIndex, | |
| 558 | objectsRemoved, | |
| 559 | Collections.EMPTY_LIST); | |
| 560 | ||
| 561 | 1 | final NotificationListListener listeners[] |
| 562 | = new NotificationListListener[listenerList_.size()]; | |
| 563 | 1 | listenerList_.toArray( listeners ); |
| 564 | ||
| 565 | 1 | int i; |
| 566 | 1 | for( i=0; i<listeners.length; i++ ) { |
| 567 | 1 | listeners[i].listElementsRemoved(event); |
| 568 | } | |
| 569 | } | |
| 570 | ||
| 571 | /** | |
| 572 | * Fire a changed event. | |
| 573 | * @param startIndex The first index | |
| 574 | * @param oldValues The old values | |
| 575 | * @param newValues The new values | |
| 576 | */ | |
| 577 | 1 | private synchronized void fireChanged( final int startIndex, |
| 578 | final List oldValues, | |
| 579 | final List newValues ) { | |
| 580 | 1 | if( oldValues.size() != newValues.size() ) { |
| 581 | 0 | throw new IllegalArgumentException("Lists must be the same size:" |
| 582 | + " oldValues.size()=" | |
| 583 | + oldValues.size() | |
| 584 | + " newValues.size()=" | |
| 585 | + newValues.size() ); | |
| 586 | } | |
| 587 | ||
| 588 | // Is there anything to do? | |
| 589 | 1 | if( listenerList_.isEmpty() ) { |
| 590 | 0 | return; |
| 591 | } | |
| 592 | ||
| 593 | 1 | final NotificationListEvent event |
| 594 | = new NotificationListEvent( this, | |
| 595 | NotificationListEvent.CHANGE, | |
| 596 | startIndex, | |
| 597 | startIndex, | |
| 598 | oldValues, | |
| 599 | newValues); | |
| 600 | ||
| 601 | 1 | final NotificationListListener listeners[] |
| 602 | = new NotificationListListener[listenerList_.size()]; | |
| 603 | 1 | listenerList_.toArray( listeners ); |
| 604 | ||
| 605 | 1 | int i; |
| 606 | 1 | for( i=0; i<listeners.length; i++ ) { |
| 607 | 1 | listeners[i].listElementsChanged(event); |
| 608 | } | |
| 609 | ||
| 610 | } | |
| 611 | ||
| 612 | ||
| 613 | 30 | private void assertNotNull( final String fieldName, final Object object ) { |
| 614 | 30 | if( object == null ) { |
| 615 | 5 | throw new DetailedNullPointerException(fieldName); |
| 616 | } | |
| 617 | } | |
| 618 | } | |
| 619 |
|
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