1 /**
2  * Copyright (c) 2008, 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 
ScalarNode(Tag tag, String value, Mark startMark, Mark endMark, Character style)30     public ScalarNode(Tag tag, String value, Mark startMark, Mark endMark, Character style) {
31         this(tag, true, value, startMark, endMark, style);
32     }
33 
ScalarNode(Tag tag, boolean resolved, String value, Mark startMark, Mark endMark, Character style)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      */
getStyle()52     public Character getStyle() {
53         return style;
54     }
55 
56     @Override
getNodeId()57     public NodeId getNodeId() {
58         return NodeId.scalar;
59     }
60 
61     /**
62      * Value of this scalar.
63      *
64      * @return Scalar's value.
65      */
getValue()66     public String getValue() {
67         return value;
68     }
69 
toString()70     public String toString() {
71         return "<" + this.getClass().getName() + " (tag=" + getTag() + ", value=" + getValue()
72                 + ")>";
73     }
74 }
75