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
18 package org.apache.commons.proxy2.provider;
19
20 import java.io.Serializable;
21
22 import org.apache.commons.proxy2.ObjectProvider;
23
24 /**
25 * Always returns the same object.
26 *
27 * @since 1.0
28 */
29 public class ConstantProvider<T> implements ObjectProvider<T>, Serializable
30 {
31 /** Serialization version */
32 private static final long serialVersionUID = 1L;
33
34 //******************************************************************************************************************
35 // Fields
36 //******************************************************************************************************************
37
38 private final T constant;
39
40 //******************************************************************************************************************
41 // Constructors
42 //******************************************************************************************************************
43
44 /**
45 * Create a new ConstantProvider instance.
46 *
47 * @param constant
48 */
49 public ConstantProvider(T constant)
50 {
51 this.constant = constant;
52 }
53
54 //******************************************************************************************************************
55 // ObjectProvider Implementation
56 //******************************************************************************************************************
57
58 /**
59 * {@inheritDoc}
60 */
61 @Override
62 public T getObject()
63 {
64 return constant;
65 }
66 }