Package: Fetch

Fetch

Coverage

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.jopa.model.query.criteria;
16:
17: import cz.cvut.kbss.jopa.model.metamodel.Attribute;
18:
19: /**
20: * Represents a join-fetched association or attribute.
21: *
22: * @param <Z>
23: * the source type of the fetch
24: * @param <X>
25: * the target type of the fetch
26: */
27: public interface Fetch<Z, X> extends FetchParent<Z, X> {
28:         /**
29:          * Return the metamodel attribute corresponding to the fetch join.
30:          *
31:          * @return metamodel attribute for the join
32:          */
33:         Attribute<? super Z, ?> getAttribute();
34:
35:         /**
36:          * Return the parent of the fetched item.
37:          *
38:          * @return fetch parent
39:          */
40:         FetchParent<?, Z> getParent();
41:
42:         /**
43:          * Return the join type used in the fetch join.
44:          *
45:          * @return join type
46:          */
47:         JoinType getJoinType();
48: }