1 /*
2 * Copyright 2012-2013 smartics, Kronseder & Reiner GmbH
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package de.smartics.properties.spi.config.resolve;
17
18 import java.util.List;
19
20 /**
21 * Signals that a property resolvement is not possible since a placeholder has a
22 * <code>null</code> value.
23 */
24 public class NullValuePropertyException extends UnresolvablePropertyException
25 {
26 // ********************************* Fields *********************************
27
28 // --- constants ------------------------------------------------------------
29
30 /**
31 * The class version identifier.
32 * <p>
33 * The value of this constant is {@value}.
34 * </p>
35 */
36 private static final long serialVersionUID = 1L;
37
38 // --- members --------------------------------------------------------------
39
40 // ****************************** Initializer *******************************
41
42 // ****************************** Constructors ******************************
43
44 /**
45 * Convenience constructor without root cause.
46 *
47 * @param propertyKey the key to the unknown property.
48 * @param path the path to the unknown property point.
49 */
50 public NullValuePropertyException(final String propertyKey,
51 final List<String> path)
52 {
53 this(null, propertyKey, path);
54 }
55
56 /**
57 * Default Constructor.
58 *
59 * @param cause the cause (which is saved for later retrieval by the
60 * {@link #getCause()} method). (A <tt>null</tt> value is permitted,
61 * and indicates that the cause is nonexistent or unknown.)
62 * @param propertyKey the key to the unknown property.
63 * @param path the path to the unknown property point.
64 */
65 public NullValuePropertyException(final Throwable cause,
66 final String propertyKey, final List<String> path)
67 {
68 super(cause, propertyKey, path);
69 }
70
71 // ****************************** Inner Classes *****************************
72
73 // ********************************* Methods ********************************
74
75 // --- init -----------------------------------------------------------------
76
77 // --- get&set --------------------------------------------------------------
78
79 // --- business -------------------------------------------------------------
80
81 // --- object basics --------------------------------------------------------
82
83 }