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Java > Open Source Codes > org > apache > geronimo > kernel > repository > ImportType


1 /**
2  * Licensed to the Apache Software Foundation (ASF) under one or more
3  * contributor license agreements. See the NOTICE file distributed with
4  * this work for additional information regarding copyright ownership.
5  * The ASF licenses this file to You under the Apache License, Version 2.0
6  * (the "License"); you may not use this file except in compliance with
7  * the License. You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 package org.apache.geronimo.kernel.repository;
18
19 import java.io.Serializable JavaDoc;
20 import java.util.Map JavaDoc;
21 import java.util.HashMap JavaDoc;
22
23 /**
24  * @version $Rev: 476049 $ $Date: 2006-11-16 23:35:17 -0500 (Thu, 16 Nov 2006) $
25  */
26 public class ImportType implements Serializable JavaDoc {
27     private static final long serialVersionUID = 9084371394522950958L;
28
29     private static final Map JavaDoc typesByName = new HashMap JavaDoc();
30
31     // todo this class imples that there are only classes and services... is that true?
32 public static final ImportType ALL = new ImportType("ALL");
33     public static final ImportType CLASSES = new ImportType("CLASSES");
34     public static final ImportType SERVICES = new ImportType("SERVICES");
35
36     public static Object JavaDoc getByName(String JavaDoc name) {
37         ImportType type = (ImportType) typesByName.get(name);
38         if (type == null) throw new IllegalStateException JavaDoc("Unknown import type: " + name);
39         return type;
40     }
41
42     private final String JavaDoc name;
43
44     private ImportType(String JavaDoc name) {
45         this.name = name;
46         typesByName.put(name, this);
47     }
48
49     public String JavaDoc getName() {
50         return name;
51     }
52
53     public String JavaDoc toString() {
54         return name;
55     }
56
57     protected Object JavaDoc readResolve() {
58         String JavaDoc name = this.name;
59         return getByName(name);
60     }
61 }
62
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