Method: buildInstanceFieldValue(Object)

1: /*
2: * JOPA
3: * Copyright (C) 2023 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.oom.query;
19:
20: import cz.cvut.kbss.jopa.model.metamodel.EntityType;
21: import cz.cvut.kbss.jopa.model.metamodel.PluralQueryAttributeImpl;
22: import cz.cvut.kbss.jopa.model.query.TypedQuery;
23: import cz.cvut.kbss.jopa.utils.CollectionFactory;
24:
25: import java.util.Collection;
26:
27: public class PluralQueryAttributeStrategy<X> extends QueryFieldStrategy<PluralQueryAttributeImpl<? super X, ?, ?>, X> {
28:
29: private final Collection<Object> values;
30:
31: public PluralQueryAttributeStrategy(EntityType<X> et, PluralQueryAttributeImpl<? super X, ?, ?> attribute) {
32: super(et, attribute);
33: this.values = CollectionFactory.createDefaultCollection(attribute.getCollectionType());
34: }
35:
36: @Override
37: public void addValueFromTypedQuery(TypedQuery<?> typedQuery) {
38: typedQuery.getResultStream().map(this::toAttributeValue).forEach(values::add);
39: }
40:
41: @Override
42: public void buildInstanceFieldValue(Object instance) {
43:• if (!values.isEmpty()) {
44: setValueOnInstance(instance, values);
45: }
46: }
47: }