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1   /*
2    * Copyright 2015 Data Archiving and Networked Services (an institute of
3    * Koninklijke Nederlandse Akademie van Wetenschappen), King's College London,
4    * Georg-August-Universitaet Goettingen Stiftung Oeffentlichen Rechts
5    *
6    * Licensed under the EUPL, Version 1.1 or – as soon they will be approved by
7    * the European Commission - subsequent versions of the EUPL (the "Licence");
8    * You may not use this work except in compliance with the Licence.
9    * You may obtain a copy of the Licence at:
10   *
11   * https://joinup.ec.europa.eu/software/page/eupl
12   *
13   * Unless required by applicable law or agreed to in writing, software
14   * distributed under the Licence is distributed on an "AS IS" basis,
15   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16   * See the Licence for the specific language governing
17   * permissions and limitations under the Licence.
18   */
19  
20  package eu.ehri.project.models.base;
21  
22  import com.tinkerpop.blueprints.Direction;
23  import com.tinkerpop.frames.Adjacency;
24  import eu.ehri.project.definitions.Ontology;
25  import eu.ehri.project.models.annotations.Dependent;
26  import eu.ehri.project.models.annotations.Fetch;
27  
28  /**
29   * An entity that can have descriptions.
30   */
31  public interface Described extends PermissionScope, Linkable {
32  
33      /**
34       * Add a description to this item.
35       *
36       * @param description a description frame
37       */
38      @Adjacency(label = Ontology.DESCRIPTION_FOR_ENTITY, direction = Direction.IN)
39      void addDescription(Description description);
40  
41      /**
42       * Remove a description from this item.
43       *
44       * @param description a description frame
45       */
46      @Adjacency(label = Ontology.DESCRIPTION_FOR_ENTITY, direction = Direction.IN)
47      void removeDescription(Description description);
48  
49      /**
50       * Fetch this item's descriptions.
51       *
52       * @return an iterable of description frames
53       */
54      @Fetch(Ontology.DESCRIPTION_FOR_ENTITY)
55      @Dependent
56      @Adjacency(label = Ontology.DESCRIPTION_FOR_ENTITY, direction = Direction.IN)
57      Iterable<Description> getDescriptions();
58  }