1 /**
2 * Copyright (c) 2008-2012, http://www.snakeyaml.org
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package org.yaml.snakeyaml.nodes;
17
18 import org.yaml.snakeyaml.error.Mark;
19
20 /**
21 * Represents a scalar node.
22 * <p>
23 * Scalar nodes form the leaves in the node graph.
24 * </p>
25 */
26 public class ScalarNode extends Node {
27 private Character style;
28 private String value;
29
30 public ScalarNode(Tag tag, String value, Mark startMark, Mark endMark, Character style) {
31 this(tag, true, value, startMark, endMark, style);
32 }
33
34 public ScalarNode(Tag tag, boolean resolved, String value, Mark startMark, Mark endMark,
35 Character style) {
36 super(tag, startMark, endMark);
37 if (value == null) {
38 throw new NullPointerException("value in a Node is required.");
39 }
40 this.value = value;
41 this.style = style;
42 this.resolved = resolved;
43 }
44
45 /**
46 * Get scalar style of this node.
47 *
48 * @see org.yaml.snakeyaml.events.ScalarEvent
49 * @see <a href="http://yaml.org/spec/1.1/#id903915">Chapter 9. Scalar
50 * Styles</a>
51 */
52 public Character getStyle() {
53 return style;
54 }
55
56 @Override
57 public NodeId getNodeId() {
58 return NodeId.scalar;
59 }
60
61 /**
62 * Value of this scalar.
63 *
64 * @return Scalar's value.
65 */
66 public String getValue() {
67 return value;
68 }
69
70 public String toString() {
71 return "<" + this.getClass().getName() + " (tag=" + getTag() + ", value=" + getValue()
72 + ")>";
73 }
74 }