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


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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 import org.apache.cayenne.map.DbAttribute;
27 import org.apache.cayenne.validation.ValidationResult;
28
29 /**
30  * A noop type that is sometimes useful to suppress extended types operations. It will set
31  * and get null values.
32  *
33  * @since 1.2
34  * @author Andrus Adamchik
35  */
36 class VoidType implements ExtendedType {
37
38     public String JavaDoc getClassName() {
39         return Void.TYPE.getName();
40     }
41
42     /**
43      * @deprecated since 3.0 as validation should not be done at the DataNode level.
44      */
45     public boolean validateProperty(
46             Object JavaDoc source,
47             String JavaDoc property,
48             Object JavaDoc value,
49             DbAttribute dbAttribute,
50             ValidationResult validationResult) {
51         return true;
52     }
53
54     public void setJdbcObject(
55             PreparedStatement JavaDoc statement,
56             Object JavaDoc value,
57             int pos,
58             int type,
59             int precision) throws Exception JavaDoc {
60         statement.setNull(pos, type);
61     }
62
63     public Object JavaDoc materializeObject(ResultSet JavaDoc rs, int index, int type) throws Exception JavaDoc {
64         return null;
65     }
66
67     public Object JavaDoc materializeObject(CallableStatement JavaDoc rs, int index, int type)
68             throws Exception JavaDoc {
69         return null;
70     }
71 }
72
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