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IExtensionSpecification.java | - | - | - | - |
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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.spec; | |
16 | ||
17 | import java.util.Map; | |
18 | ||
19 | import org.apache.hivemind.LocationHolder; | |
20 | import org.apache.tapestry.util.IPropertyHolder; | |
21 | ||
22 | /** | |
23 | * Defines an "extension", which is much like a helper bean, but is part of a library or application | |
24 | * specification (and has the same lifecycle as the application). | |
25 | * | |
26 | * @author glongman@intelligentworks.com | |
27 | */ | |
28 | public interface IExtensionSpecification extends IPropertyHolder, LocationHolder | |
29 | { | |
30 | public abstract String getClassName(); | |
31 | ||
32 | public abstract void setClassName(String className); | |
33 | ||
34 | public abstract void addConfiguration(String propertyName, String value); | |
35 | ||
36 | /** | |
37 | * Returns an immutable Map of the configuration; keyed on property name, with values as | |
38 | * properties to assign. | |
39 | */ | |
40 | public abstract Map getConfiguration(); | |
41 | ||
42 | /** | |
43 | * Invoked to instantiate an instance of the extension and return it. It also configures | |
44 | * properties of the extension. | |
45 | */ | |
46 | public abstract Object instantiateExtension(); | |
47 | ||
48 | /** | |
49 | * Returns true if the extensions should be instantiated immediately after the containing | |
50 | * {@link org.apache.tapestry.spec.LibrarySpecification}if parsed. Non-immediate extensions are | |
51 | * instantiated only as needed. | |
52 | */ | |
53 | public abstract boolean isImmediate(); | |
54 | ||
55 | public abstract void setImmediate(boolean immediate); | |
56 | } |
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