Package: PersistenceProviderResolverHolder

PersistenceProviderResolverHolder

name	instruction	branch	complexity	line	method
PersistenceProviderResolverHolder()	M: 6 C: 0 0%	M: 0 C: 0 100%	M: 1 C: 0 0%	M: 2 C: 0 0%	M: 1 C: 0 0%
getPersistenceProviderResolver()	M: 4 C: 4 50%	M: 1 C: 1 50%	M: 1 C: 1 50%	M: 1 C: 2 67%	M: 0 C: 1 100%
setPersistenceProviderResolver(PersistenceProviderResolver)	M: 3 C: 0 0%	M: 0 C: 0 100%	M: 1 C: 0 0%	M: 2 C: 0 0%	M: 1 C: 0 0%
static {...}	M: 0 C: 5 100%	M: 0 C: 0 100%	M: 0 C: 1 100%	M: 0 C: 1 100%	M: 0 C: 1 100%

Coverage

1: /**
2: * Copyright (C) 2020 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: /**
18: * Holds the global {@link PersistenceProviderResolver} instance.
19: * <p>
20: * If no {@code PersistenceProviderResolver} is set by the environment, the default {@code PersistenceProviderResolver}
21: * is used. Implementations must be thread-safe.
22: */
23: public class PersistenceProviderResolverHolder {
24:
25: private static PersistenceProviderResolver instance = new DefaultPersistenceProviderResolver();
26:
27: private PersistenceProviderResolverHolder() {
28: throw new AssertionError();
29: }
30:
31: /**
32: * Returns the current persistence provider resolver.
33: *
34: * @return the current persistence provider resolver
35: */
36: public static synchronized PersistenceProviderResolver getPersistenceProviderResolver() {
37:• if (instance == null) {
38: instance = new DefaultPersistenceProviderResolver();
39: }
40: return instance;
41: }
42:
43: /**
44: * Defines the persistence provider resolver used.
45: *
46: * @param resolver persistence provider resolver to be used
47: */
48: public static synchronized void setPersistenceProviderResolver(final PersistenceProviderResolver resolver) {
49: instance = resolver;
50: }
51: }