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Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
PropertyChangeImpl.java | 100% | 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.record; | |
16 | ||
17 | import org.apache.hivemind.util.Defense; | |
18 | import org.apache.hivemind.util.ToStringBuilder; | |
19 | ||
20 | /** | |
21 | * Represents a change to a component on a page. | |
22 | * | |
23 | * @author Howard Lewis Ship | |
24 | */ | |
25 | ||
26 | public class PropertyChangeImpl implements PropertyChange | |
27 | { | |
28 | private String _componentPath; | |
29 | ||
30 | private String _propertyName; | |
31 | ||
32 | private Object _newValue; | |
33 | ||
34 | 75 | public PropertyChangeImpl(String componentPath, String propertyName, Object newValue) |
35 | { | |
36 | 75 | Defense.notNull(propertyName, "propertyName"); |
37 | ||
38 | // TODO: This breaks some tests, but those tests are wrong. | |
39 | // Defense.notNull(newValue, "newValue"); | |
40 | ||
41 | 75 | _componentPath = componentPath; |
42 | 75 | _propertyName = propertyName; |
43 | 75 | _newValue = newValue; |
44 | } | |
45 | ||
46 | /** | |
47 | * The path to the component on the page, or null if the property is a property of the page. | |
48 | */ | |
49 | ||
50 | 40 | public String getComponentPath() |
51 | { | |
52 | 40 | return _componentPath; |
53 | } | |
54 | ||
55 | /** | |
56 | * The new value for the property, which may be null. | |
57 | */ | |
58 | ||
59 | 40 | public Object getNewValue() |
60 | { | |
61 | 40 | return _newValue; |
62 | } | |
63 | ||
64 | /** | |
65 | * The name of the property that changed. | |
66 | */ | |
67 | ||
68 | 40 | public String getPropertyName() |
69 | { | |
70 | 40 | return _propertyName; |
71 | } | |
72 | ||
73 | 1 | public String toString() |
74 | { | |
75 | 1 | ToStringBuilder builder = new ToStringBuilder(this); |
76 | ||
77 | 1 | builder.append("componentPath", _componentPath); |
78 | 1 | builder.append("propertyName", _propertyName); |
79 | 1 | builder.append("newValue", _newValue); |
80 | ||
81 | 1 | return builder.toString(); |
82 | } | |
83 | ||
84 | 31 | public boolean equals(Object object) |
85 | { | |
86 | 31 | if (this == object) |
87 | 1 | return true; |
88 | ||
89 | 30 | if (object == null || object.getClass() != this.getClass()) |
90 | 1 | return false; |
91 | ||
92 | 29 | PropertyChangeImpl other = (PropertyChangeImpl) object; |
93 | ||
94 | 29 | return same(_componentPath, other._componentPath) |
95 | && same(_propertyName, other._propertyName) && same(_newValue, other._newValue); | |
96 | } | |
97 | ||
98 | 85 | private boolean same(Object o1, Object o2) |
99 | { | |
100 | 85 | return o1 == o2 || (o1 != null && o1.equals(o2)); |
101 | } | |
102 | } |
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