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1 package org.hibernate.type;
3
4 import org.hibernate.usertype.UserType;
5 import org.hibernate.HibernateException;
6
7 import java.sql.ResultSet  ;
8 import java.sql.SQLException ;
9 import java.sql.PreparedStatement ;
10 import java.sql.Types ;
11 import java.io.Serializable ;
12 import java.io.Reader ;
13 import java.io.IOException ;
14 import java.io.StringReader ;
15
16
21 public class StringClobType implements UserType {
22 public int[] sqlTypes() {
23 return new int[] { Types.CLOB };
24 }
25
26 public Class returnedClass() {
27 return String .class;
28 }
29
30 public boolean equals(Object x, Object y) throws HibernateException {
31 return ( x == y) || ( x != null && x.equals(y) );
32 }
33
34 public int hashCode(Object x) throws HibernateException {
35 return x.hashCode();
36 }
37
38 public Object nullSafeGet(ResultSet rs, String [] names, Object owner) throws HibernateException, SQLException {
39 Reader reader = rs.getCharacterStream( names[0] );
40 if (reader == null) return null;
41 StringBuffer result = new StringBuffer ();
42 try {
43 char[] charbuf = new char[4096];
44 for (int i = reader.read(charbuf) ; i > 0 ; i = reader.read(charbuf) ) {
45 result.append(charbuf, 0, i);
46 }
47 } catch (IOException e) {
48 throw new SQLException ( e.getMessage() );
49 }
50 return result.toString();
51 }
52
53 public void nullSafeSet(PreparedStatement st, Object value, int index) throws HibernateException, SQLException {
54 if (value != null) {
55 String string = (String ) value;
56 StringReader reader = new StringReader ( string );
57 st.setCharacterStream( index, reader, string.length() );
58 }
59 else {
60 st.setNull( index, sqlTypes()[0] );
61 }
62 }
63
64 public Object deepCopy(Object value) throws HibernateException {
65 return value;
67 }
68
69 public boolean isMutable() {
70 return false;
71 }
72
73 public Serializable disassemble(Object value) throws HibernateException {
74 return (Serializable ) value;
75 }
76
77 public Object assemble(Serializable cached, Object owner) throws HibernateException {
78 return cached;
79 }
80
81 public Object replace(Object original, Object target, Object owner) throws HibernateException {
82 return original;
83 }
84 }
85 |
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