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.Link;
26
27 /**
28 * An entity that can hold incoming links.
29 */
30 public interface Linkable extends Accessible {
31 /**
32 * Fetch links attached to this item.
33 *
34 * @return an iterable of link frames
35 */
36 @Adjacency(label = Ontology.LINK_HAS_TARGET, direction = Direction.IN)
37 Iterable<Link> getLinks();
38
39 /**
40 * Add a link to this item.
41 *
42 * @param link a link frame
43 */
44 @Adjacency(label = Ontology.LINK_HAS_TARGET, direction = Direction.IN)
45 void addLink(Link link);
46 }