Method: of(Object)

1: /*
2: * *********************************************************************************************************************
3: *
4: * TheseFoolishThings: Miscellaneous utilities
5: * http://tidalwave.it/projects/thesefoolishthings
6: *
7: * Copyright (C) 2009 - 2023 by Tidalwave s.a.s. (http://tidalwave.it)
8: *
9: * *********************************************************************************************************************
10: *
11: * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
12: * the License. You may obtain a copy of the License at
13: *
14: * http://www.apache.org/licenses/LICENSE-2.0
15: *
16: * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
17: * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
18: * specific language governing permissions and limitations under the License.
19: *
20: * *********************************************************************************************************************
21: *
22: * git clone https://bitbucket.org/tidalwave/thesefoolishthings-src
23: * git clone https://github.com/tidalwave-it/thesefoolishthings-src
24: *
25: * *********************************************************************************************************************
26: */
27: package it.tidalwave.util;
28:
29: import javax.annotation.Nonnull;
30: import javax.annotation.concurrent.Immutable;
31: import java.util.UUID;
32: import java.io.Serializable;
33: import lombok.EqualsAndHashCode;
34: import lombok.RequiredArgsConstructor;
35:
36: /***********************************************************************************************************************
37: *
38: * An opaque wrapper for identifiers.
39: *
40: * @author Fabrizio Giudici
41: * @it.tidalwave.javadoc.stable
42: *
43: **********************************************************************************************************************/
44: @Immutable @RequiredArgsConstructor @EqualsAndHashCode
45: public class Id implements Serializable, Comparable<Id>, StringValue
46: {
47: private static final long serialVersionUID = 3309234234279593043L;
48:
49: @Nonnull
50: private final Object value;
51:
52: /*******************************************************************************************************************
53: *
54: * @param value the id value
55: * @return the new instance
56: * @since 3.2-ALPHA-2
57: *
58: ******************************************************************************************************************/
59: @Nonnull
60: public static Id of (@Nonnull final Object value)
61: {
62: return new Id(value);
63: }
64:
65: /*******************************************************************************************************************
66: *
67: * @return the new instance
68: * @since 3.2-ALPHA-9
69: *
70: ******************************************************************************************************************/
71: @Nonnull
72: public static Id ofUuid()
73: {
74: return Id.of(UUID.randomUUID().toString());
75: }
76:
77: /*******************************************************************************************************************
78: *
79: * {@inheritDoc}
80: *
81: ******************************************************************************************************************/
82: @Override @Nonnull
83: public String stringValue()
84: {
85: return (value instanceof StringValue) ? ((StringValue)value).stringValue() : value.toString();
86: }
87:
88: /*******************************************************************************************************************
89: *
90: * {@inheritDoc}
91: *
92: ******************************************************************************************************************/
93: // @Override
94: public int compareTo (final Id other)
95: {
96: return stringValue().compareTo(other.stringValue());
97: }
98:
99: /*******************************************************************************************************************
100: *
101: * {@inheritDoc}
102: *
103: ******************************************************************************************************************/
104: @Override @Nonnull
105: public String toString()
106: {
107: return stringValue();
108: }
109: }