| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| StandardPostModificationEvent |
|
| 1.0;1 |
| 1 | /* | |
| 2 | * Copyright 2003-2004 The Apache Software Foundation | |
| 3 | * | |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
| 5 | * you may not use this file except in compliance with the License. | |
| 6 | * You may obtain a copy of the License at | |
| 7 | * | |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 9 | * | |
| 10 | * Unless required by applicable law or agreed to in writing, software | |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 13 | * See the License for the specific language governing permissions and | |
| 14 | * limitations under the License. | |
| 15 | */ | |
| 16 | package org.apache.commons.events.observable.standard; | |
| 17 | ||
| 18 | import org.apache.commons.events.observable.ModificationHandler; | |
| 19 | import org.apache.commons.events.observable.ObservableCollection; | |
| 20 | ||
| 21 | /** | |
| 22 | * Event class that encapsulates all the event information for a | |
| 23 | * standard collection event. | |
| 24 | * <p> | |
| 25 | * The information stored in this event is all that is available as | |
| 26 | * parameters or return values. | |
| 27 | * In addition, the <code>size</code> method is used on the collection. | |
| 28 | * All objects used are the real objects from the method calls, not clones. | |
| 29 | * | |
| 30 | * @since Commons Events 1.0 | |
| 31 | * @version $Revision: 155443 $ $Date: 2005-02-26 13:19:51 +0000 (Sat, 26 Feb 2005) $ | |
| 32 | * | |
| 33 | * @author Stephen Colebourne | |
| 34 | */ | |
| 35 | public class StandardPostModificationEvent extends StandardModificationEvent { | |
| 36 | ||
| 37 | /** The size after the event */ | |
| 38 | protected final int postSize; | |
| 39 | ||
| 40 | // Constructor | |
| 41 | //----------------------------------------------------------------------- | |
| 42 | /** | |
| 43 | * Constructor. | |
| 44 | * | |
| 45 | * @param obsCollection the event source | |
| 46 | * @param handler the handler | |
| 47 | * @param type the event type | |
| 48 | * @param preSize the size before the change | |
| 49 | * @param index the index that changed | |
| 50 | * @param object the value that changed | |
| 51 | * @param repeat the number of repeats | |
| 52 | * @param previous the previous value being removed/replaced | |
| 53 | * @param view the view collection, null if event from main collection | |
| 54 | * @param viewOffset the offset within the main collection of the view, -1 if unknown | |
| 55 | */ | |
| 56 | public StandardPostModificationEvent( | |
| 57 | final ObservableCollection obsCollection, | |
| 58 | final ModificationHandler handler, | |
| 59 | final int type, | |
| 60 | final int preSize, | |
| 61 | final int index, | |
| 62 | final Object object, | |
| 63 | final int repeat, | |
| 64 | final Object previous, | |
| 65 | final ObservableCollection view, | |
| 66 | final int viewOffset) { | |
| 67 | ||
| 68 | 0 | super(obsCollection, handler, type, preSize, index, |
| 69 | object, repeat, previous, view, viewOffset); | |
| 70 | 0 | postSize = collection.size(); |
| 71 | 0 | } |
| 72 | ||
| 73 | // Size info | |
| 74 | //----------------------------------------------------------------------- | |
| 75 | /** | |
| 76 | * Gets the size after the change. | |
| 77 | * | |
| 78 | * @return the size after the change | |
| 79 | */ | |
| 80 | public int getPostSize() { | |
| 81 | 0 | return postSize; |
| 82 | } | |
| 83 | ||
| 84 | /** | |
| 85 | * Gets the size change, negative for remove/clear. | |
| 86 | * | |
| 87 | * @return the size before the change | |
| 88 | */ | |
| 89 | public int getSizeChange() { | |
| 90 | 0 | return postSize - preSize; |
| 91 | } | |
| 92 | ||
| 93 | /** | |
| 94 | * Returns true if the size of the collection changed. | |
| 95 | * | |
| 96 | * @return true is the size changed | |
| 97 | */ | |
| 98 | public boolean isSizeChanged() { | |
| 99 | 0 | return (preSize != postSize); |
| 100 | } | |
| 101 | ||
| 102 | } |