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1   /**
2    * Copyright (C) 2014-2015 Philip Helger (www.helger.com)
3    * philip[at]helger[dot]com
4    *
5    * Licensed under the Apache License, Version 2.0 (the "License");
6    * you may not use this file except in compliance with the License.
7    * 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  package com.helger.schematron.pure.model;
18  
19  import javax.annotation.Nullable;
20  
21  /**
22   * Base interface for objects having a rich group.
23   * 
24   * @author Philip Helger
25   */
26  public interface IPSHasRichGroup
27  {
28    /**
29     * Overwrite any existing rich group.
30     * 
31     * @param aRich
32     *        The new rich group to set. May be <code>null</code>.
33     */
34    void setRich (@Nullable PSRichGroup aRich);
35  
36    /**
37     * @return <code>true</code> if a rich group is present, <code>false</code>
38     *         otherwise.
39     */
40    boolean hasRich ();
41  
42    /**
43     * @return Get the existing rich group or <code>null</code> if none is
44     *         present.
45     */
46    @Nullable
47    PSRichGroup getRich ();
48  
49    /**
50     * @return Get a clone of the rich group or <code>null</code> if no rich group
51     *         is present at this object.
52     */
53    @Nullable
54    PSRichGroup getRichClone ();
55  }