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

   1 /**
   2 * Copyright (C) 2009 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 package eu.etaxonomy.cdm.hibernate;
  10
  11 import java.io.Serializable;
  12 import java.sql.PreparedStatement;
  13 import java.sql.ResultSet;
  14 import java.sql.SQLException;
  15
  16 import org.hibernate.HibernateException;
  17 import org.hibernate.engine.spi.SessionImplementor;
  18 import org.hibernate.usertype.UserType;
  19
  20 import eu.etaxonomy.cdm.model.validation.EntityConstraintViolation;
  21 import eu.etaxonomy.cdm.model.validation.Severity;
  22
  23
  24 /**
  25  * A hibernate {@code UserType} for persisting {@link Severity} instances.
  26  *
  27  * @see EntityConstraintViolation
  28  *
  29  * @author ayco_holleman
  30  *
  31  */
  32 public class SeverityUserType implements UserType {
  33
  34         @Override
  35         public int[] sqlTypes(){
  36                 return new int[] { java.sql.Types.VARCHAR };
  37         }
  38
  39
  40         @SuppressWarnings("rawtypes")
  41         @Override
  42         public Class returnedClass(){
  43                 return Severity.class;
  44
  45         }
  46
  47
  48         @Override
  49         public boolean equals(Object x, Object y) throws HibernateException{
  50                 if (x == null) {
  51                         if (y == null) {
  52                                 return true;
  53                         }
  54                         return false;
  55                 }
  56                 if (y == null) {
  57                         return false;
  58                 }
  59                 return ((Severity) x).equals(y);
  60         }
  61
  62
  63         @Override
  64         public int hashCode(Object x) throws HibernateException{
  65                 return x.getClass().hashCode();
  66         }
  67
  68
  69         @Override
  70         public Object nullSafeGet(ResultSet rs, String[] names, SessionImplementor session, Object owner) throws HibernateException, SQLException{
  71                 String severity = rs.getString(names[0]);
  72                 return rs.wasNull() ? null : Severity.forName(severity);
  73         }
  74
  75
  76         @Override
  77         public void nullSafeSet(PreparedStatement st, Object value, int index, SessionImplementor session) throws HibernateException, SQLException{
  78                 st.setString(index, value == null ? null : value.toString());
  79         }
  80
  81
  82         @Override
  83         public Object deepCopy(Object value) throws HibernateException{
  84                 return value;
  85         }
  86
  87
  88         @Override
  89         public boolean isMutable(){
  90                 return false;
  91         }
  92
  93
  94         @Override
  95         public Serializable disassemble(Object value) throws HibernateException{
  96                 return null;
  97         }
  98
  99
 100         @Override
 101         public Object assemble(Serializable cached, Object owner) throws HibernateException{
 102                 return null;
 103         }
 104
 105
 106         @Override
 107         public Object replace(Object original, Object target, Object owner) throws HibernateException{
 108                 return original;
 109         }
 110
 111 }