1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18 package org.apache.any23.vocab;
19
20 /**
21 * Vocabulary definition for <a href="http://schema.org/">schema.org</a>.
22 *
23 * @author Michele Mostarda (mostarda@fbk.eu)
24 */
25 public class SchemaOrg extends Vocabulary {
26
27 /**
28 * The namespace of the vocabulary as a string.
29 */
30 public static final String NS = "http://schema.org/";
31
32 private static SchemaOrg instance;
33
34 public static SchemaOrg getInstance() {
35 if (instance == null) {
36 instance = new SchemaOrg();
37 }
38 return instance;
39 }
40
41 private SchemaOrg() {
42 super(NS);
43 }
44
45 }