1 package org.apache.onami.persist;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import javax.inject.Inject;
23 import javax.inject.Singleton;
24 import javax.persistence.EntityManagerFactory;
25
26 import static org.apache.onami.persist.Preconditions.checkNotNull;
27
28 /**
29 * Source for {@link javax.persistence.EntityManagerFactory}.
30 * The sourced instance is looked up via a JNDI call.
31 */
32 @Singleton
33 class EntityManagerFactorySourceByJndiLookup
34 implements EntityManagerFactorySource
35 {
36
37 /**
38 * The JNDI name of the persistence unit.
39 */
40 private final String jndiName;
41
42 /**
43 * Helper for JNDI lookup.
44 */
45 private final JndiLookupHelper jndiLookupHelper;
46
47 /**
48 * Constructor.
49 *
50 * @param jndiName jndi name of the entity manager factory. Must not be {@code null}.
51 * @param jndiLookupHelper the lookup helper. Must not be {@code null}.
52 */
53 @Inject
54 EntityManagerFactorySourceByJndiLookup( @ForContainerManaged String jndiName, JndiLookupHelper jndiLookupHelper )
55 {
56 this.jndiName = checkNotNull( jndiName, "jndiName is mandatory!" );
57 this.jndiLookupHelper = checkNotNull( jndiLookupHelper, "jndiLookupHelper is mandatory!" );
58 }
59
60 /**
61 * Gets a {@link javax.persistence.EntityManagerFactory} by looking it up in the JNDI context.
62 *
63 * @return the found entity manager factory
64 * @throws RuntimeException when no entity manager factory was found.
65 */
66 //@Override
67 public EntityManagerFactory getEntityManagerFactory()
68 {
69 return jndiLookupHelper.doJndiLookup( EntityManagerFactory.class, jndiName );
70 }
71
72 }