1
|
package eu.dnetlib.openaire.common;
|
2
|
|
3
|
import java.io.Serializable;
|
4
|
import java.sql.*;
|
5
|
|
6
|
import org.hibernate.HibernateException;
|
7
|
import org.hibernate.engine.spi.SharedSessionContractImplementor;
|
8
|
import org.hibernate.usertype.UserType;
|
9
|
|
10
|
/**
|
11
|
* Created by claudio on 05/07/2017.
|
12
|
*/
|
13
|
public class GenericArrayUserType<T extends Serializable> implements UserType {
|
14
|
|
15
|
protected static final int[] SQL_TYPES = { Types.ARRAY };
|
16
|
|
17
|
private Class<T> typeParameterClass;
|
18
|
|
19
|
@Override
|
20
|
public Object assemble(Serializable cached, Object owner) throws HibernateException {
|
21
|
return this.deepCopy(cached);
|
22
|
}
|
23
|
|
24
|
@Override
|
25
|
public Object deepCopy(Object value) throws HibernateException {
|
26
|
return value;
|
27
|
}
|
28
|
|
29
|
@SuppressWarnings("unchecked")
|
30
|
@Override
|
31
|
public Serializable disassemble(Object value) throws HibernateException {
|
32
|
return (T) this.deepCopy(value);
|
33
|
}
|
34
|
|
35
|
@Override
|
36
|
public boolean equals(Object x, Object y) throws HibernateException {
|
37
|
|
38
|
if (x == null) {
|
39
|
return y == null;
|
40
|
}
|
41
|
return x.equals(y);
|
42
|
}
|
43
|
|
44
|
@Override
|
45
|
public int hashCode(Object x) throws HibernateException {
|
46
|
return x.hashCode();
|
47
|
}
|
48
|
|
49
|
@Override
|
50
|
public Object nullSafeGet(final ResultSet resultSet,
|
51
|
final String[] names,
|
52
|
final SharedSessionContractImplementor sharedSessionContractImplementor,
|
53
|
final Object o)
|
54
|
throws HibernateException, SQLException {
|
55
|
if (resultSet.wasNull()) {
|
56
|
return null;
|
57
|
}
|
58
|
if (resultSet.getArray(names[0]) == null) {
|
59
|
return new Integer[0];
|
60
|
}
|
61
|
|
62
|
Array array = resultSet.getArray(names[0]);
|
63
|
@SuppressWarnings("unchecked")
|
64
|
T javaArray = (T) array.getArray();
|
65
|
return javaArray;
|
66
|
}
|
67
|
|
68
|
@Override
|
69
|
public void nullSafeSet(final PreparedStatement statement,
|
70
|
final Object value,
|
71
|
final int index,
|
72
|
final SharedSessionContractImplementor session)
|
73
|
throws HibernateException, SQLException {
|
74
|
Connection connection = statement.getConnection();
|
75
|
if (value == null) {
|
76
|
statement.setNull(index, SQL_TYPES[0]);
|
77
|
} else {
|
78
|
@SuppressWarnings("unchecked")
|
79
|
T castObject = (T) value;
|
80
|
Array array = connection.createArrayOf("integer", (Object[]) castObject);
|
81
|
statement.setArray(index, array);
|
82
|
}
|
83
|
}
|
84
|
|
85
|
@Override
|
86
|
public boolean isMutable() {
|
87
|
return true;
|
88
|
}
|
89
|
|
90
|
@Override
|
91
|
public Object replace(Object original, Object target, Object owner) throws HibernateException {
|
92
|
return original;
|
93
|
}
|
94
|
|
95
|
@Override
|
96
|
public Class<T> returnedClass() {
|
97
|
return typeParameterClass;
|
98
|
}
|
99
|
|
100
|
@Override
|
101
|
public int[] sqlTypes() {
|
102
|
return new int[] { Types.ARRAY };
|
103
|
}
|
104
|
|
105
|
|
106
|
}
|