Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
IPropertySource |
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| 1.0;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.engine; | |
16 | ||
17 | /** | |
18 | * A source for configuration properties. | |
19 | * | |
20 | * @author Howard Lewis Ship | |
21 | * @since 2.3 | |
22 | */ | |
23 | ||
24 | public interface IPropertySource | |
25 | { | |
26 | ||
27 | /** | |
28 | * Returns the value for a given property, or null if the source does not | |
29 | * provide a value for the named property. Implementations of | |
30 | * IPropertySource may use delegation to resolve the value (that is, if one | |
31 | * property source returns null, it may forward the request to another | |
32 | * source). | |
33 | * | |
34 | * @param propertyName | |
35 | * Name of the property to get. | |
36 | * | |
37 | * @return Value of property or null if none found. | |
38 | */ | |
39 | ||
40 | String getPropertyValue(String propertyName); | |
41 | } |