cdmlib-model/src/main/java/eu/etaxonomy/cdm/hibernate/UUIDUserType.java

   1 /**
   2 * Copyright (C) 2007 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9
  10 package eu.etaxonomy.cdm.hibernate;
  11
  12 import java.io.Serializable;
  13 import java.sql.PreparedStatement;
  14 import java.sql.ResultSet;
  15 import java.sql.SQLException;
  16 import java.sql.Types;
  17 import java.util.UUID;
  18
  19 import org.apache.log4j.Logger;
  20 import org.hibernate.HibernateException;
  21 import org.hibernate.engine.spi.SessionImplementor;
  22 import org.hibernate.type.StandardBasicTypes;
  23 import org.hibernate.usertype.UserType;
  24 import org.jadira.usertype.dateandtime.shared.spi.AbstractSingleColumnUserType;
  25 import org.jadira.usertype.dateandtime.shared.spi.AbstractUserType;
  26 import org.jadira.usertype.dateandtime.shared.spi.ColumnMapper;
  27
  28 /**
  29  * @author a.mueller
  30  * @created 22.07.2008
  31  * @version 2.0
  32  */
  33 public class UUIDUserType  extends AbstractUserType implements UserType {
  34         static final long serialVersionUID = -3959049831344758708L;
  35
  36         @SuppressWarnings("unused")
  37         private static final Logger logger = Logger.getLogger(UUIDUserType.class);
  38
  39         private static final int[] SQL_TYPES = { Types.VARCHAR };
  40
  41         /* (non-Javadoc)
  42          * @see org.hibernate.usertype.UserType#deepCopy(java.lang.Object)
  43          */
  44         public Object deepCopy(Object o) throws HibernateException {
  45                 if (o == null) {
  46             return null;
  47         }
  48
  49                 UUID uuid = (UUID) o;
  50
  51         try {
  52                         return UUID.fromString(uuid.toString());
  53                 } catch (IllegalArgumentException e) {
  54                         throw new HibernateException(e);
  55                 }
  56         }
  57
  58         /* (non-Javadoc)
  59          * @see org.hibernate.usertype.UserType#disassemble(java.lang.Object)
  60          */
  61         public Serializable disassemble(Object value) throws HibernateException {
  62                 if(value == null) {
  63                         return null;
  64                 } else {
  65                     UUID uuid = (UUID) value;
  66                     return uuid.toString();
  67                 }
  68         }
  69
  70         @Override
  71         public UUID nullSafeGet(ResultSet rs, String[] names, SessionImplementor session, Object owner)
  72                         throws HibernateException, SQLException {
  73         String val = (String) StandardBasicTypes.STRING.nullSafeGet(rs, names, session, owner);
  74
  75                 if(val == null) {
  76                         return null;
  77                 } else {
  78
  79             try {
  80                             return UUID.fromString(val);
  81                     } catch (IllegalArgumentException e) {
  82                             throw new HibernateException(e);
  83                     }
  84                 }
  85         }
  86
  87         @Override
  88         public void nullSafeSet(PreparedStatement statement, Object value, int index, SessionImplementor session)
  89                         throws HibernateException, SQLException {
  90                 if (value == null) {
  91 //            statement.setNull(index, Types.VARCHAR); old version
  92             StandardBasicTypes.STRING.nullSafeSet(statement, value, index, session);
  93         } else {
  94                 UUID uuid = (UUID)value;
  95 //            statement.setString(index, uuid.toString()); //old version
  96             StandardBasicTypes.STRING.nullSafeSet(statement, uuid.toString(), index, session);
  97         }
  98         }
  99
 100
 101         /* (non-Javadoc)
 102          * @see org.jadira.usertype.dateandtime.shared.spi.AbstractSingleColumnUserType#returnedClass()
 103          */
 104         @Override
 105         public Class returnedClass() {
 106                 return UUID.class;
 107         }
 108
 109         @Override
 110         public int[] sqlTypes() {
 111                 return SQL_TYPES;
 112         }
 113
 114
 115
 116
 117
 118 }