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 /**
19 * Stores one key value pair used in a map.
20 */
21 public final class NodeTuple {
22
23 private Node keyNode;
24 private Node valueNode;
25
26 public NodeTuple(Node keyNode, Node valueNode) {
27 if (keyNode == null || valueNode == null) {
28 throw new NullPointerException("Nodes must be provided.");
29 }
30 this.keyNode = keyNode;
31 this.valueNode = valueNode;
32 }
33
34 /**
35 * Key node.
36 */
37 final public Node getKeyNode() {
38 return keyNode;
39 }
40
41 /**
42 * Value node.
43 *
44 * @return value
45 */
46 final public Node getValueNode() {
47 return valueNode;
48 }
49
50 @Override
51 public String toString() {
52 return "<NodeTuple keyNode=" + keyNode.toString() + "; valueNode=" + valueNode.toString()
53 + ">";
54 }
55 }