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


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19 package org.apache.cayenne.access.types;
20
21 import java.sql.CallableStatement JavaDoc;
22 import java.sql.PreparedStatement JavaDoc;
23 import java.sql.ResultSet JavaDoc;
24
25 import org.apache.cayenne.map.DbAttribute;
26 import org.apache.cayenne.validation.ValidationResult;
27
28 /**
29  * Decorates another ExtendedType, converting objects to other Java types.
30  *
31  * @since 3.0
32  * @author Andrus Adamchik
33  */
34 abstract class ExtendedTypeDecorator implements ExtendedType {
35
36     private ExtendedType decorated;
37
38     ExtendedTypeDecorator(ExtendedType decorated) {
39         this.decorated = decorated;
40     }
41
42     abstract Object JavaDoc toJavaObject(Object JavaDoc object);
43
44     abstract Object JavaDoc fromJavaObject(Object JavaDoc object);
45
46     public abstract String JavaDoc getClassName();
47
48     public Object JavaDoc materializeObject(CallableStatement JavaDoc rs, int index, int type)
49             throws Exception JavaDoc {
50         return toJavaObject(decorated.materializeObject(rs, index, type));
51     }
52
53     public Object JavaDoc materializeObject(ResultSet JavaDoc rs, int index, int type) throws Exception JavaDoc {
54         return toJavaObject(decorated.materializeObject(rs, index, type));
55     }
56
57     public void setJdbcObject(
58             PreparedStatement JavaDoc statement,
59             Object JavaDoc value,
60             int pos,
61             int type,
62             int precision) throws Exception JavaDoc {
63         decorated.setJdbcObject(statement, fromJavaObject(value), pos, type, precision);
64     }
65
66     /**
67      * @deprecated since 3.0 as validation should not be done at the DataNode level.
68      */
69     public boolean validateProperty(
70             Object JavaDoc source,
71             String JavaDoc property,
72             Object JavaDoc value,
73             DbAttribute dbAttribute,
74             ValidationResult validationResult) {
75         
76         return decorated.validateProperty(
77                 source,
78                 property,
79                 value,
80                 dbAttribute,
81                 validationResult);
82     }
83 }
84
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