Package: PersistenceUnitUtil

PersistenceUnitUtil

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;
16:
17: public interface PersistenceUnitUtil {
18:
19:         public boolean isLoaded(Object entity, String attributeName);
20:
21:         public boolean isLoaded(Object entity);
22:
23:         /**
24:          * Return the id of the entity. A generated id is not guaranteed to be
25:          * available until after the database insert has occurred. Returns null if
26:          * the entity does not yet have an id.
27:          *
28:          * @param entity
29:          * entity instance
30:          * @return id of the entity
31:          * @throws IllegalArgumentException
32:          * if the object is found not to be an entity
33:          */
34:         public Object getIdentifier(Object entity);
35: }