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Java > Open Source Codes > org > apache > cayenne > access > types > ByteType


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19
20 package org.apache.cayenne.access.types;
21
22 import java.sql.CallableStatement JavaDoc;
23 import java.sql.PreparedStatement JavaDoc;
24 import java.sql.ResultSet JavaDoc;
25
26 /**
27  * Handles <code>java.lang.Byte</code> type mapping. Can be configured to recast
28  * java.lang.Byte to java.lang.Integer when binding values to PreparedStatement. This is a
29  * workaround for bugs in certain drivers. Drivers that are proven to have issues with
30  * byte values are Sybase and Oracle (Mac OS X only).
31  *
32  * @author Andrus Adamchik
33  * @since 1.0.3
34  */
35 public class ByteType extends AbstractType {
36
37     protected boolean widenBytes;
38
39     public ByteType(boolean widenBytes) {
40         this.widenBytes = widenBytes;
41     }
42
43     public String JavaDoc getClassName() {
44         return Byte JavaDoc.class.getName();
45     }
46
47     public Object JavaDoc materializeObject(ResultSet JavaDoc rs, int index, int type) throws Exception JavaDoc {
48         byte b = rs.getByte(index);
49         return (rs.wasNull()) ? null : new Byte JavaDoc(b);
50     }
51
52     public Object JavaDoc materializeObject(CallableStatement JavaDoc st, int index, int type)
53             throws Exception JavaDoc {
54         byte b = st.getByte(index);
55         return (st.wasNull()) ? null : new Byte JavaDoc(b);
56     }
57
58     public void setJdbcObject(
59             PreparedStatement JavaDoc st,
60             Object JavaDoc val,
61             int pos,
62             int type,
63             int precision) throws Exception JavaDoc {
64
65         if (widenBytes && (val instanceof Byte JavaDoc)) {
66             val = new Integer JavaDoc(((Byte JavaDoc) val).intValue());
67         }
68
69         super.setJdbcObject(st, val, pos, type, precision);
70     }
71 }
72
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