1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.myfaces.shared.resource;
20
21 /**
22 * ResourceLoaders that are able to handle contract aware resources
23 * must extends from this class.
24 */
25 public abstract class ContractResourceLoader extends ResourceLoader
26 {
27
28 public static final String VERSION_INVALID = "INVALID";
29
30 public ContractResourceLoader(String prefix)
31 {
32 super(prefix);
33 }
34
35 public String getResourceVersion(String path)
36 {
37 return null;
38 }
39
40 public String getLibraryVersion(String path)
41 {
42 return null;
43 }
44
45 public abstract String getResourceVersion(String path, String contractName);
46
47 /**
48 * Return the max available version found (if exists) or
49 * return null if no version available.
50 */
51 public abstract String getLibraryVersion(String path, String contractName);
52
53 public ResourceMeta createResourceMeta(String prefix, String libraryName,
54 String libraryVersion, String resourceName, String resourceVersion)
55 {
56 return null;
57 }
58
59 public abstract ResourceMeta createResourceMeta(String prefix, String libraryName,
60 String libraryVersion, String resourceName, String resourceVersion, String contractName);
61
62 public boolean libraryExists(String libraryName)
63 {
64 return false;
65 }
66
67 public abstract boolean libraryExists(String libraryName, String contractName);
68
69 }