| Clover coverage report - Code Coverage for tapestry release 4.0.3 |
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| Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
| ObservedChangeEvent.java | - | 100% | 100% | 100% |
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| 1 | // Copyright 2004, 2005 The Apache Software Foundation | |
| 2 | // | |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); | |
| 4 | // you may not use this file except in compliance with the License. | |
| 5 | // You may obtain a copy of the License at | |
| 6 | // | |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 | |
| 8 | // | |
| 9 | // Unless required by applicable law or agreed to in writing, software | |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, | |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 12 | // See the License for the specific language governing permissions and | |
| 13 | // limitations under the License. | |
| 14 | ||
| 15 | package org.apache.tapestry.event; | |
| 16 | ||
| 17 | import java.util.EventObject; | |
| 18 | ||
| 19 | import org.apache.hivemind.util.Defense; | |
| 20 | import org.apache.tapestry.IComponent; | |
| 21 | ||
| 22 | /** | |
| 23 | * Event which describes a change to a particular {@link IComponent}. | |
| 24 | * | |
| 25 | * @author Howard Ship | |
| 26 | */ | |
| 27 | ||
| 28 | public class ObservedChangeEvent extends EventObject | |
| 29 | { | |
| 30 | private static final long serialVersionUID = -7693394232554811975L; | |
| 31 | ||
| 32 | private IComponent _component; | |
| 33 | ||
| 34 | private String _propertyName; | |
| 35 | ||
| 36 | private Object _newValue; | |
| 37 | ||
| 38 | /** | |
| 39 | * Creates the event. The new value must be null, or be a serializable object. (It is declared | |
| 40 | * as Object as a concession to the Java 2 collections framework, where the implementations are | |
| 41 | * serializable but the interfaces (Map, List, etc.) don't extend Serializable ... so we wait | |
| 42 | * until runtime to check). | |
| 43 | * | |
| 44 | * @param component | |
| 45 | * The component (not necessarily a page) whose property changed. | |
| 46 | * @param propertyName | |
| 47 | * the name of the property which was changed. | |
| 48 | * @param newValue | |
| 49 | * The new value of the property. | |
| 50 | * @throws IllegalArgumentException | |
| 51 | * if propertyName is null, or if the new value is not serializable | |
| 52 | */ | |
| 53 | ||
| 54 | 69 | public ObservedChangeEvent(IComponent component, String propertyName, Object newValue) |
| 55 | { | |
| 56 | 69 | super(component); |
| 57 | ||
| 58 | 69 | Defense.notNull(propertyName, "propertyName"); |
| 59 | ||
| 60 | 69 | _component = component; |
| 61 | 69 | _propertyName = propertyName; |
| 62 | 69 | _newValue = newValue; |
| 63 | } | |
| 64 | ||
| 65 | 69 | public IComponent getComponent() |
| 66 | { | |
| 67 | 69 | return _component; |
| 68 | } | |
| 69 | ||
| 70 | 63 | public Object getNewValue() |
| 71 | { | |
| 72 | 63 | return _newValue; |
| 73 | } | |
| 74 | ||
| 75 | 69 | public String getPropertyName() |
| 76 | { | |
| 77 | 69 | return _propertyName; |
| 78 | } | |
| 79 | ||
| 80 | } |
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