Coverage Report - org.apache.tapestry.event.ObservedChangeEvent
 
Classes in this File Line Coverage Branch Coverage Complexity
ObservedChangeEvent
0%
0/9
N/A
1
 
 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  
 
 31  
     private static final long serialVersionUID = -7693394232554811975L;
 32  
 
 33  
     private IComponent _component;
 34  
 
 35  
     private String _propertyName;
 36  
 
 37  
     private Object _newValue;
 38  
 
 39  
     /**
 40  
      * Creates the event. The new value must be null, or be a serializable
 41  
      * object. (It is declared as Object as a concession to the Java 2
 42  
      * collections framework, where the implementations are serializable but the
 43  
      * interfaces (Map, List, etc.) don't extend Serializable ... so we wait
 44  
      * until runtime to check).
 45  
      * 
 46  
      * @param component
 47  
      *            The component (not necessarily a page) whose property changed.
 48  
      * @param propertyName
 49  
      *            the name of the property which was changed.
 50  
      * @param newValue
 51  
      *            The new value of the property.
 52  
      * @throws IllegalArgumentException
 53  
      *             if propertyName is null, or if the new value is not
 54  
      *             serializable
 55  
      */
 56  
 
 57  
     public ObservedChangeEvent(IComponent component, String propertyName, Object newValue)
 58  
     {
 59  0
         super(component);
 60  
 
 61  0
         Defense.notNull(propertyName, "propertyName");
 62  
 
 63  0
         _component = component;
 64  0
         _propertyName = propertyName;
 65  0
         _newValue = newValue;
 66  0
     }
 67  
 
 68  
     public IComponent getComponent()
 69  
     {
 70  0
         return _component;
 71  
     }
 72  
 
 73  
     public Object getNewValue()
 74  
     {
 75  0
         return _newValue;
 76  
     }
 77  
 
 78  
     public String getPropertyName()
 79  
     {
 80  0
         return _propertyName;
 81  
     }
 82  
 
 83  
 }