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
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
/*
* Copyright (c) 2008-2013 Eike Stepper (Berlin, Germany) and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Simon McDuff - initial API and implementation
* Eike Stepper - maintenance
*/
package org.eclipse.emf.cdo.internal.common.revision;
import org.eclipse.emf.cdo.common.model.CDOModelUtil;
import org.eclipse.emf.cdo.common.model.CDOType;
import org.eclipse.emf.cdo.common.revision.CDOList;
import org.eclipse.emf.cdo.common.revision.CDOListFactory;
import org.eclipse.emf.cdo.spi.common.revision.CDOReferenceAdjuster;
import org.eclipse.emf.cdo.spi.common.revision.InternalCDOList;
import org.eclipse.emf.common.util.BasicEList;
import org.eclipse.emf.ecore.EClassifier;
import org.eclipse.emf.ecore.EStructuralFeature;
import java.util.Collection;
/**
* @author Simon McDuff
*/
public class CDOListImpl extends BasicEList<Object>implements InternalCDOList.ConfigurableEquality
{
public static final CDOListFactory FACTORY = new CDOListFactory()
{
public CDOList createList(int initialCapacity, int size, int initialChunk)
{
return new CDOListImpl(initialCapacity, size);
}
};
private static final byte FROZEN_FLAG = 1;
private static final byte USE_EQUALS_FLAG = 2;
private static final long serialVersionUID = 1L;
private transient byte flags = USE_EQUALS_FLAG;
public CDOListImpl(int initialCapacity, int size)
{
super(initialCapacity);
for (int j = 0; j < size; j++)
{
this.add(UNINITIALIZED);
}
}
public InternalCDOList clone(EClassifier classifier)
{
CDOType type = CDOModelUtil.getType(classifier);
int size = size();
CDOListImpl list = new CDOListImpl(size, 0);
list.setUseEquals(useEquals());
for (int j = 0; j < size; j++)
{
Object value = this.get(j);
list.add(j, type.copyValue(value));
}
return list;
}
public Object get(int index, boolean resolve)
{
return super.get(index);
}
/**
* There's a duplicate of this method in WrappedHibernateList!!!
*/
public boolean adjustReferences(CDOReferenceAdjuster revisionAdjuster, EStructuralFeature feature)
{
boolean changed = false;
CDOType type = CDOModelUtil.getType(feature);
int size = size();
for (int i = 0; i < size; i++)
{
Object element = super.get(i);
handleAdjustReference(i, element);
Object newID = type.adjustReferences(revisionAdjuster, element, feature, i);
if (newID != element) // Just an optimization for NOOP adjusters
{
super.set(i, newID);
changed = true;
}
}
return changed;
}
protected void handleAdjustReference(int index, Object element)
{
}
public void freeze()
{
flags |= FROZEN_FLAG;
}
private void checkFrozen()
{
if ((flags & FROZEN_FLAG) != 0)
{
throw new IllegalStateException("Cannot modify a frozen list");
}
}
@Override
public boolean add(Object o)
{
checkFrozen();
return super.add(o);
}
@Override
public boolean remove(Object o)
{
checkFrozen();
return super.remove(o);
}
@Override
public boolean addAll(Collection<? extends Object> c)
{
checkFrozen();
return super.addAll(c);
}
@Override
public boolean addAll(int index, Collection<? extends Object> c)
{
checkFrozen();
return super.addAll(index, c);
}
@Override
public boolean removeAll(Collection<?> c)
{
checkFrozen();
return super.removeAll(c);
}
@Override
public boolean retainAll(Collection<?> c)
{
checkFrozen();
return super.retainAll(c);
}
@Override
public void clear()
{
checkFrozen();
super.clear();
}
@Override
public Object set(int index, Object element)
{
checkFrozen();
return super.set(index, element);
}
@Override
public void add(int index, Object element)
{
checkFrozen();
super.add(index, element);
}
@Override
public Object remove(int index)
{
checkFrozen();
return super.remove(index);
}
public void setWithoutFrozenCheck(int index, Object element)
{
super.set(index, element);
}
@Override
public final boolean useEquals()
{
return (flags & USE_EQUALS_FLAG) != 0;
}
public final void setUseEquals(boolean useEquals)
{
if (useEquals)
{
flags |= USE_EQUALS_FLAG;
}
else
{
flags &= ~USE_EQUALS_FLAG;
}
}
}
|
