Method: initItems()

1: /**
2: * Copyright (C) 2016 Czech Technical University in Prague
3: *
4: * This program is free software: you can redistribute it and/or modify it under
5: * the terms of the GNU General Public License as published by the Free Software
6: * Foundation, either version 3 of the License, or (at your option) any
7: * later version.
8: *
9: * This program is distributed in the hope that it will be useful, but WITHOUT
10: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11: * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
12: * details. You should have received a copy of the GNU General Public License
13: * along with this program. If not, see <http://www.gnu.org/licenses/>.
14: */
15: package cz.cvut.kbss.jsonld.serialization.model;
16:
17: import cz.cvut.kbss.jsonld.JsonLd;
18: import cz.cvut.kbss.jsonld.serialization.JsonGenerator;
19:
20: import java.io.IOException;
21: import java.util.ArrayList;
22: import java.util.Collection;
23:
24: /**
25: * Represents a node serialized as a JSON-LD list.
26: * <p>
27: * I.e., it is serialized as an object with a single attribute - {@code @list} and its value is a JSON array.
28: */
29: public class ListNode extends CollectionNode {
30:
31: public ListNode() {
32: }
33:
34: public ListNode(String name) {
35: super(name);
36: }
37:
38: @Override
39: Collection<JsonNode> initItems() {
40: return new ArrayList<>();
41: }
42:
43: @Override
44: void writeValue(final JsonGenerator writer) throws IOException {
45: writer.writeObjectStart();
46: writer.writeFieldName(JsonLd.LIST);
47: writer.writeArrayStart();
48: items.forEach(item -> item.write(writer));
49: writer.writeArrayEnd();
50: writer.writeObjectEnd();
51: }
52: }