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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  }