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1: /*
2:  * JOPA
3:  * Copyright (C) 2024 Czech Technical University in Prague
4:  *
5:  * This library is free software; you can redistribute it and/or
6:  * modify it under the terms of the GNU Lesser General Public
7:  * License as published by the Free Software Foundation; either
8:  * version 3.0 of the License, or (at your option) any later version.
9:  *
10:  * This library is distributed in the hope that it will be useful,
11:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13:  * Lesser General Public License for more details.
14:  *
15:  * You should have received a copy of the GNU Lesser General Public
16:  * License along with this library.
17:  */
18: package cz.cvut.kbss.jopa.model.metamodel;
19: 
20: /**
21:  * Instances of the type PluralAttribute represent persistent collection-valued attributes.
22:  *
23:  * @param <X> The type the represented collection belongs to
24:  * @param <C> The type of the represented collection
25:  * @param <E> The element type of the represented collection
26:  */
27: public interface PluralAttribute<X, C, E> extends Attribute<X, C>, Bindable<E> {
28: 
29:     /**
30:      * Return the collection type.
31:      *
32:      * @return collection type
33:      */
34:     CollectionType getCollectionType();
35: 
36:     /**
37:      * Return the type representing the element type of the collection.
38:      *
39:      * @return element type
40:      */
41:     Type<E> getElementType();
42: 
43:     /**
44:      * Checks whether this attribute represents an <a href="https://www.w3.org/TR/rdf-schema/#ch_containervocab">RDF
45:      * container</a>.
46:      *
47:      * @return {@code true} if this plural attribute is an RDF container, {@code false} otherwise
48:      */
49:     default boolean isRdfContainer() {return false;}
50: }