1 /*
2 * ModeShape (http://www.modeshape.org)
3 * See the COPYRIGHT.txt file distributed with this work for information
4 * regarding copyright ownership. Some portions may be licensed
5 * to Red Hat, Inc. under one or more contributor license agreements.
6 * See the AUTHORS.txt file in the distribution for a full listing of
7 * individual contributors.
8 *
9 * ModeShape is free software. Unless otherwise indicated, all code in ModeShape
10 * is licensed to you under the terms of the GNU Lesser General Public License as
11 * published by the Free Software Foundation; either version 2.1 of
12 * the License, or (at your option) any later version.
13 *
14 * ModeShape is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this software; if not, write to the Free
21 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
22 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
23 */
24 package org.modeshape.graph.connector.inmemory;
25
26 import java.util.List;
27 import java.util.Map;
28 import java.util.UUID;
29 import org.modeshape.graph.connector.base.MapNode;
30 import org.modeshape.graph.property.Name;
31 import org.modeshape.graph.property.Property;
32 import org.modeshape.graph.property.Path.Segment;
33
34 /**
35 * A specialization of the {@link MapNode}.
36 */
37 public class InMemoryNode extends MapNode {
38
39 private static final long serialVersionUID = 1L;
40
41 /**
42 * Create a new in-memory node.
43 *
44 * @param uuid the desired UUID; never null
45 * @param name the name of the new node; may be null if the name is not known and there is no parent
46 * @param parent the UUID of the parent node; may be null if this is the root node and there is no name
47 * @param properties the properties; may be null if there are no properties
48 * @param children the list of child nodes; may be null
49 */
50 public InMemoryNode( UUID uuid,
51 Segment name,
52 UUID parent,
53 Map<Name, Property> properties,
54 List<UUID> children ) {
55 super(uuid, name, parent, properties, children);
56 }
57
58 /**
59 * Create a new in-memory node.
60 *
61 * @param uuid the desired UUID; never null
62 * @param name the name of the new node; may be null if the name is not known and there is no parent
63 * @param parent the UUID of the parent node; may be null if this is the root node and there is no name
64 * @param properties the properties; may be null if there are no properties
65 * @param children the list of child nodes; may be null
66 */
67 public InMemoryNode( UUID uuid,
68 Segment name,
69 UUID parent,
70 Iterable<Property> properties,
71 List<UUID> children ) {
72 super(uuid, name, parent, properties, children);
73 }
74
75 /**
76 * Create a new in-memory node.
77 *
78 * @param uuid the desired UUID; never null
79 */
80 public InMemoryNode( UUID uuid ) {
81 super(uuid);
82 }
83
84 /**
85 * {@inheritDoc}
86 *
87 * @see org.modeshape.graph.connector.base.MapNode#freeze()
88 */
89 @Override
90 public InMemoryNode freeze() {
91 if (!hasChanges()) return this;
92 return new InMemoryNode(getUuid(), getName(), getParent(), changes.getUnmodifiableProperties(),
93 changes.getUnmodifiableChildren());
94 }
95
96 /**
97 * {@inheritDoc}
98 * <p>
99 * This method never clones the {@link #hasChanges() changes}.
100 * </p>
101 *
102 * @see java.lang.Object#clone()
103 */
104 @Override
105 public InMemoryNode clone() {
106 return new InMemoryNode(getUuid(), getName(), getParent(), getProperties(), getChildren());
107 }
108 }