1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
|
/*
* Copyright (C) 2010, Google Inc.
* Copyright (C) 2008, Shawn O. Pearce <spearce@spearce.org>
* and other copyright owners as documented in the project's IP log.
*
* This program and the accompanying materials are made available
* under the terms of the Eclipse Distribution License v1.0 which
* accompanies this distribution, is reproduced below, and is
* available at http://www.eclipse.org/org/documents/edl-v10.php
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* - Neither the name of the Eclipse Foundation, Inc. nor the
* names of its contributors may be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.eclipse.jgit.lib;
/** A {@link Ref} that points directly at an {@link ObjectId}. */
public abstract class ObjectIdRef implements Ref {
/** Any reference whose peeled value is not yet known. */
public static class Unpeeled extends ObjectIdRef {
/**
* Create a new ref pairing.
*
* @param st
* method used to store this ref.
* @param name
* name of this ref.
* @param id
* current value of the ref. May be null to indicate a ref
* that does not exist yet.
*/
public Unpeeled(Storage st, String name, ObjectId id) {
super(st, name, id);
}
public ObjectId getPeeledObjectId() {
return null;
}
public boolean isPeeled() {
return false;
}
}
/** An annotated tag whose peeled object has been cached. */
public static class PeeledTag extends ObjectIdRef {
private final ObjectId peeledObjectId;
/**
* Create a new ref pairing.
*
* @param st
* method used to store this ref.
* @param name
* name of this ref.
* @param id
* current value of the ref.
* @param p
* the first non-tag object that tag {@code id} points to.
*/
public PeeledTag(Storage st, String name, ObjectId id, ObjectId p) {
super(st, name, id);
peeledObjectId = p;
}
public ObjectId getPeeledObjectId() {
return peeledObjectId;
}
public boolean isPeeled() {
return true;
}
}
/** A reference to a non-tag object coming from a cached source. */
public static class PeeledNonTag extends ObjectIdRef {
/**
* Create a new ref pairing.
*
* @param st
* method used to store this ref.
* @param name
* name of this ref.
* @param id
* current value of the ref. May be null to indicate a ref
* that does not exist yet.
*/
public PeeledNonTag(Storage st, String name, ObjectId id) {
super(st, name, id);
}
public ObjectId getPeeledObjectId() {
return null;
}
public boolean isPeeled() {
return true;
}
}
private final String name;
private final Storage storage;
private final ObjectId objectId;
/**
* Create a new ref pairing.
*
* @param st
* method used to store this ref.
* @param name
* name of this ref.
* @param id
* current value of the ref. May be null to indicate a ref that
* does not exist yet.
*/
protected ObjectIdRef(Storage st, String name, ObjectId id) {
this.name = name;
this.storage = st;
this.objectId = id;
}
public String getName() {
return name;
}
public boolean isSymbolic() {
return false;
}
public Ref getLeaf() {
return this;
}
public Ref getTarget() {
return this;
}
public ObjectId getObjectId() {
return objectId;
}
public Storage getStorage() {
return storage;
}
@Override
public String toString() {
StringBuilder r = new StringBuilder();
r.append("Ref[");
r.append(getName());
r.append('=');
r.append(ObjectId.toString(getObjectId()));
r.append(']');
return r.toString();
}
}
|
