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1   /*
2    * JBoss, Home of Professional Open Source
3    * Copyright 2014, Red Hat, Inc. and/or its affiliates, and individual
4    * contributors by the @authors tag. See the copyright.txt in the
5    * distribution for a full listing of individual contributors.
6    *
7    * Licensed under the Apache License, Version 2.0 (the "License");
8    * you may not use this file except in compliance with the License.
9    * You may obtain a copy of the License at
10   * http://www.apache.org/licenses/LICENSE-2.0
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.jboss.as.quickstarts.cmt.ejb;
18  
19  import java.rmi.RemoteException;
20  import java.util.List;
21  
22  import javax.ejb.Stateless;
23  import javax.ejb.TransactionAttribute;
24  import javax.ejb.TransactionAttributeType;
25  import javax.jms.JMSException;
26  import javax.naming.NamingException;
27  import javax.persistence.EntityManager;
28  import javax.persistence.PersistenceContext;
29  import javax.transaction.HeuristicMixedException;
30  import javax.transaction.HeuristicRollbackException;
31  import javax.transaction.NotSupportedException;
32  import javax.transaction.RollbackException;
33  import javax.transaction.SystemException;
34  
35  import org.jboss.as.quickstarts.cmt.model.LogMessage;
36  
37  @Stateless
38  public class LogMessageManagerEJB {
39      @PersistenceContext
40      private EntityManager entityManager;
41  
42      @TransactionAttribute(TransactionAttributeType.REQUIRES_NEW)
43      public void logCreateCustomer(String name) throws RemoteException, JMSException {
44          LogMessage lm = new LogMessage();
45          lm.setMessage("Attempt to create record for customer: '" + name + "'");
46          entityManager.persist(lm);
47      }
48  
49      @TransactionAttribute(TransactionAttributeType.REQUIRED)
50      public void blaMethod() throws RemoteException, JMSException {
51          logCreateCustomer("Niks");
52      }
53  
54      /**
55       * List all the log-messages.
56       * 
57       * @return
58       * @throws NamingException
59       * @throws NotSupportedException
60       * @throws SystemException
61       * @throws SecurityException
62       * @throws IllegalStateException
63       * @throws RollbackException
64       * @throws HeuristicMixedException
65       * @throws HeuristicRollbackException
66       */
67      @TransactionAttribute(TransactionAttributeType.NEVER)
68      @SuppressWarnings("unchecked")
69      public List<LogMessage> listLogMessages() {
70          return entityManager.createQuery("select lm from LogMessage lm").getResultList();
71      }
72  }