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Java > Open Source Codes > org > objectstyle > cayenne > dba > oracle > OracleUtilDateType


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56 package org.objectstyle.cayenne.dba.oracle;
57
58 import java.sql.CallableStatement JavaDoc;
59 import java.sql.ResultSet JavaDoc;
60 import java.sql.Types JavaDoc;
61 import java.util.Calendar JavaDoc;
62 import java.util.Date JavaDoc;
63
64 import org.objectstyle.cayenne.access.types.UtilDateType;
65
66 /**
67  * @author Andrei Adamchik
68  */

69 public class OracleUtilDateType extends UtilDateType {
70
71     public Object JavaDoc materializeObject(CallableStatement JavaDoc cs, int index, int type)
72         throws Exception JavaDoc {
73             
74         Object JavaDoc date = super.materializeObject(cs, index, type);
75         if (date == null || type != Types.TIME) {
76             return date;
77         } else {
78             return normalizeDate((Date JavaDoc) date);
79         }
80     }
81
82     public Object JavaDoc materializeObject(ResultSet JavaDoc rs, int index, int type)
83         throws Exception JavaDoc {
84
85         Object JavaDoc date = super.materializeObject(rs, index, type);
86         if (date == null || type != Types.TIME) {
87             return date;
88         } else {
89             return normalizeDate((Date JavaDoc) date);
90         }
91     }
92
93     /**
94      * Offsets date component to be January 1, 1970,
95      * since Oracle adapter returns time based on January 1, 1900.
96      */

97     protected Date JavaDoc normalizeDate(Date JavaDoc time) {
98         // this may need serious optimization - Calendar is slow...
99
Calendar JavaDoc calendar = Calendar.getInstance();
100         calendar.setTime(time);
101         calendar.set(Calendar.YEAR, 1970);
102         calendar.set(Calendar.MONTH, 0);
103         calendar.set(Calendar.DAY_OF_MONTH, 1);
104
105         return calendar.getTime();
106     }
107 }
108
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