source: josm/trunk/src/javax/json/JsonValueImpl.java@ 13611

Last change on this file since 13611 was 13231, checked in by Don-vip, 7 years ago

see #15682 - upgrade to JSR 374 (JSON Processing) API 1.1.2

File size: 3.7 KB
Line 
1/*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright (c) 2016-2017 Oracle and/or its affiliates. All rights reserved.
5 *
6 * The contents of this file are subject to the terms of either the GNU
7 * General Public License Version 2 only ("GPL") or the Common Development
8 * and Distribution License("CDDL") (collectively, the "License"). You
9 * may not use this file except in compliance with the License. You can
10 * obtain a copy of the License at
11 * https://oss.oracle.com/licenses/CDDL+GPL-1.1
12 * or LICENSE.txt. See the License for the specific
13 * language governing permissions and limitations under the License.
14 *
15 * When distributing the software, include this License Header Notice in each
16 * file and include the License file at LICENSE.txt.
17 *
18 * GPL Classpath Exception:
19 * Oracle designates this particular file as subject to the "Classpath"
20 * exception as provided by Oracle in the GPL Version 2 section of the License
21 * file that accompanied this code.
22 *
23 * Modifications:
24 * If applicable, add the following below the License Header, with the fields
25 * enclosed by brackets [] replaced by your own identifying information:
26 * "Portions Copyright [year] [name of copyright owner]"
27 *
28 * Contributor(s):
29 * If you wish your version of this file to be governed by only the CDDL or
30 * only the GPL Version 2, indicate your decision by adding "[Contributor]
31 * elects to include this software in this distribution under the [CDDL or GPL
32 * Version 2] license." If you don't indicate a single choice of license, a
33 * recipient has the option to distribute your version of this file under
34 * either the CDDL, the GPL Version 2 or to extend the choice of license to
35 * its licensees as provided above. However, if you add GPL Version 2 code
36 * and therefore, elected the GPL Version 2 license, then the option applies
37 * only if the new code is made subject to such option by the copyright
38 * holder.
39 */
40
41package javax.json;
42
43import java.io.Serializable;
44
45/**
46 * Private implementation of {@link JsonValue} for simple {@link ValueType}s
47 * allowing their usage in constants which are better to implement {@link Serializable}.
48 *
49 * @author Lukas Jungmann
50 */
51final class JsonValueImpl implements JsonValue, Serializable {
52
53 private final ValueType valueType;
54
55 JsonValueImpl(ValueType valueType) {
56 this.valueType = valueType;
57 }
58
59 /**
60 * Returns the value type of this JSON value.
61 *
62 * @return JSON value type
63 */
64 @Override
65 public ValueType getValueType() {
66 return valueType;
67 }
68
69 /**
70 * Compares the specified object with this {@link JsonValue}
71 * object for equality. Returns {@code true} if and only if the
72 * specified object is also a JsonValue, and their
73 * {@link #getValueType()} objects are <i>equal</i>.
74 *
75 * @param obj the object to be compared for equality with this JsonValue
76 * @return {@code true} if the specified object is equal to this
77 * JsonValue
78 */
79 @Override
80 public boolean equals(Object obj) {
81 if (this == obj) {
82 return true;
83 }
84 if (obj instanceof JsonValue) {
85 return getValueType().equals(((JsonValue) obj).getValueType());
86 }
87 return false;
88 }
89
90 /**
91 * Returns the hash code value for this {@link JsonValue} object.
92 * The hash code of the {@link JsonValue} object is defined to be
93 * its {@link #getValueType()} object's hash code.
94 *
95 * @return the hash code value for this {@link JsonValue} object
96 */
97 @Override
98 public int hashCode() {
99 return valueType.hashCode();
100 }
101
102 @Override
103 public String toString() {
104 return valueType.name().toLowerCase();
105 }
106
107}
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