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1
19 package org.apache.cayenne.access.types;
20
21 import java.sql.CallableStatement  ;
22 import java.sql.PreparedStatement ;
23 import java.sql.ResultSet ;
24 import java.sql.Types ;
25 import java.util.Calendar ;
26 import java.util.Date ;
27 import java.util.GregorianCalendar ;
28
29 import org.apache.cayenne.CayenneRuntimeException;
30 import org.apache.cayenne.dba.TypesMapping;
31 import org.apache.cayenne.map.DbAttribute;
32 import org.apache.cayenne.validation.ValidationResult;
33
34
40 public class CalendarType implements ExtendedType {
41
42 protected Class calendarClass;
43
44 public CalendarType(Class calendarClass) {
45 if (calendarClass == null) {
46 throw new IllegalArgumentException ("Null calendar class");
47 }
48
49 if (!Calendar .class.isAssignableFrom(calendarClass)) {
50 throw new IllegalArgumentException (
51 "Must be a java.util.Calendar or a subclass: " + calendarClass);
52 }
53
54 this.calendarClass = calendarClass;
55 }
56
57 public String getClassName() {
58 return calendarClass.getName();
59 }
60
61 public Object materializeObject(ResultSet rs, int index, int type) throws Exception {
62
63 Date val = null;
64
65 switch (type) {
66 case Types.TIMESTAMP:
67 val = rs.getTimestamp(index);
68 break;
69 case Types.DATE:
70 val = rs.getDate(index);
71 break;
72 case Types.TIME:
73 val = rs.getTime(index);
74 break;
75 default:
76 Object object = rs.getObject(index);
79
80 if (object != null && !(object instanceof Date )) {
81 throw new CayenneRuntimeException(
82 "Expected an instance of java.util.Date, instead got "
83 + object.getClass().getName()
84 + ", column index: "
85 + index);
86 }
87
88 val = (Date ) object;
89 break;
90 }
91
92 if (rs.wasNull()) {
93 return null;
94 }
95
96 GregorianCalendar calendar = new GregorianCalendar ();
97 calendar.setTime(val);
98 return calendar;
99 }
100
101 public Object materializeObject(CallableStatement rs, int index, int type)
102 throws Exception {
103 Date val = null;
104
105 switch (type) {
106 case Types.TIMESTAMP:
107 val = rs.getTimestamp(index);
108 break;
109 case Types.DATE:
110 val = rs.getDate(index);
111 break;
112 case Types.TIME:
113 val = rs.getTime(index);
114 break;
115 default:
116 Object object = rs.getObject(index);
119
120 if (object != null && !(object instanceof Date )) {
121 throw new CayenneRuntimeException(
122 "Expected an instance of java.util.Date, instead got "
123 + object.getClass().getName()
124 + ", column index: "
125 + index);
126 }
127
128 val = (Date ) object;
129 break;
130 }
131
132 if (rs.wasNull()) {
133 return null;
134 }
135
136 GregorianCalendar calendar = new GregorianCalendar ();
137 calendar.setTime(val);
138 return calendar;
139 }
140
141 public void setJdbcObject(
142 PreparedStatement statement,
143 Object value,
144 int pos,
145 int type,
146 int precision) throws Exception {
147
148 if (value == null) {
149 statement.setNull(pos, type);
150 }
151 else if (value instanceof Calendar ) {
152
153 Calendar calendar = (Calendar ) value;
154 statement.setObject(pos, convertToJdbcObject(calendar, type));
155 }
156 else {
157 throw new IllegalArgumentException ("Expected java.util.Calendar, got "
158 + value.getClass().getName());
159 }
160 }
161
162 protected Object convertToJdbcObject(Calendar value, int type) throws Exception {
163 Calendar calendar = (Calendar ) value;
164
165 if (type == Types.DATE)
166 return new java.sql.Date (calendar.getTimeInMillis());
167 else if (type == Types.TIME)
168 return new java.sql.Time (calendar.getTimeInMillis());
169 else if (type == Types.TIMESTAMP)
170 return new java.sql.Timestamp (calendar.getTimeInMillis());
171 else
172 throw new IllegalArgumentException (
173 "Only DATE, TIME or TIMESTAMP can be mapped as '"
174 + getClassName()
175 + "', got "
176 + TypesMapping.getSqlNameByType(type));
177 }
178
179
182 public boolean validateProperty(
183 Object source,
184 String property,
185 Object value,
186 DbAttribute dbAttribute,
187 ValidationResult validationResult) {
188 return true;
189 }
190 }
191 |
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