1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    * Permission is hereby granted, free of charge, to any person obtaining a copy
5    * of this software and associated documentation files (the "Software"), to deal
6    * in the Software without restriction, including without limitation the rights
7    * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8    * copies of the Software, and to permit persons to whom the Software is
9    * furnished to do so, subject to the following conditions:
10   *
11   * The above copyright notice and this permission notice shall be included in
12   * all copies or substantial portions of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.dao.orm.hibernate;
24  
25  import java.io.Serializable;
26  
27  import java.sql.PreparedStatement;
28  import java.sql.ResultSet;
29  import java.sql.SQLException;
30  import java.sql.Types;
31  
32  import org.hibernate.Hibernate;
33  import org.hibernate.HibernateException;
34  import org.hibernate.usertype.UserType;
35  
36  /**
37   * <a href="DoubleType.java.html"><b><i>View Source</i></b></a>
38   *
39   * @author Brian Wing Shun Chan
40   *
41   */
42  public class DoubleType implements UserType {
43  
44      public final static double DEFAULT_VALUE = 0.0;
45  
46      public final static int[] SQL_TYPES = new int[] {Types.DOUBLE};
47  
48      public Object assemble(Serializable cached, Object owner) {
49          return cached;
50      }
51  
52      public Object deepCopy(Object obj) {
53          return obj;
54      }
55  
56      public Serializable disassemble(Object value) {
57          return (Serializable)value;
58      }
59  
60      public boolean equals(Object x, Object y) {
61          if (x == y) {
62              return true;
63          }
64          else if (x == null || y == null) {
65              return false;
66          }
67          else {
68              return x.equals(y);
69          }
70      }
71  
72      public int hashCode(Object x) {
73          return x.hashCode();
74      }
75  
76      public boolean isMutable() {
77          return false;
78      }
79  
80      public Object nullSafeGet(ResultSet rs, String[] names, Object obj)
81          throws HibernateException, SQLException {
82  
83          Double value = (Double)Hibernate.DOUBLE.nullSafeGet(rs, names[0]);
84  
85          if (value == null) {
86              return new Double(DEFAULT_VALUE);
87          }
88          else {
89              return value;
90          }
91      }
92  
93      public void nullSafeSet(PreparedStatement ps, Object obj, int index)
94          throws HibernateException, SQLException {
95  
96          if (obj == null) {
97              obj = new Double(DEFAULT_VALUE);
98          }
99  
100         Hibernate.DOUBLE.nullSafeSet(ps, obj, index);
101     }
102 
103     public Object replace(Object original, Object target, Object owner) {
104         return original;
105     }
106 
107     public Class<Double> returnedClass() {
108         return Double.class;
109     }
110 
111     public int[] sqlTypes() {
112         return SQL_TYPES;
113     }
114 
115 }