src/java/org/mxchange/jphone/phonenumbers/phone/AddressbookPhoneSessionBean.java

   1 /*
   2  * Copyright (C) 2016 Roland Haeder
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU Affero General Public License as
   6  * published by the Free Software Foundation, either version 3 of the
   7  * License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU Affero General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Affero General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17 package org.mxchange.jphone.phonenumbers.phone;
  18
  19 import java.text.MessageFormat;
  20 import javax.ejb.Stateless;
  21 import javax.persistence.NoResultException;
  22 import javax.persistence.Query;
  23 import org.mxchange.jcoreee.database.BaseDatabaseBean;
  24 import org.mxchange.jphone.exceptions.PhoneEntityNotFoundException;
  25 import org.mxchange.jphone.phonenumbers.cellphone.CellphoneNumber;
  26 import org.mxchange.jphone.phonenumbers.cellphone.DialableCellphoneNumber;
  27
  28 /**
  29  * A general phone EJB
  30  * <p>
  31  * @author Roland Haeder<roland@mxchange.org>
  32  */
  33 @Stateless (name = "phone", description = "A bean handling phone data")
  34 public class AddressbookPhoneSessionBean extends BaseDatabaseBean implements PhoneSessionBeanRemote {
  35
  36         /**
  37          * Serial number
  38          */
  39         private static final long serialVersionUID = 134_945_698_127_601L;
  40
  41         /**
  42          * Default constructor
  43          */
  44         public AddressbookPhoneSessionBean () {
  45         }
  46
  47         @Override
  48         public DialableCellphoneNumber findCellphoneById (final Long cellphoneId) throws PhoneEntityNotFoundException {
  49                 // The id number should be valid
  50                 if (null == cellphoneId) {
  51                         // Throw NPE
  52                         throw new NullPointerException("cellphoneId is null"); //NOI18N
  53                 } else if (cellphoneId < 1) {
  54                         // Not valid
  55                         throw new IllegalArgumentException(MessageFormat.format("cellphoneId={0} is not valid.", cellphoneId)); //NOI18N
  56                 }
  57
  58                 // Now find it
  59                 Query query = this.getEntityManager().createNamedQuery("SearchCellphoneId", CellphoneNumber.class); //NOI18N
  60
  61                 // Set parameter
  62                 query.setParameter("cellphoneId", cellphoneId); //NOI18N
  63
  64                 // Init instance
  65                 DialableCellphoneNumber cellphone = null;
  66
  67                 // Try to get a result
  68                 try {
  69                         // Get a single result
  70                         cellphone = (DialableCellphoneNumber) query.getSingleResult();
  71                 } catch (NoResultException ex) {
  72                         // The entry was not found, so throw it again
  73                         throw new PhoneEntityNotFoundException(cellphoneId, ex);
  74                 }
  75
  76                 // Return found instance
  77                 return cellphone;
  78         }
  79
  80 }