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1
21
22 package org.apache.derby.impl.sql.compile;
23
24 import org.apache.derby.iapi.sql.compile.TypeCompilerFactory;
25 import org.apache.derby.iapi.sql.compile.TypeCompiler;
26 import org.apache.derby.iapi.types.TypeId;
27
28 import org.apache.derby.iapi.services.sanity.SanityManager;
29
30 import org.apache.derby.iapi.reference.JDBC20Translation;
31 import org.apache.derby.iapi.reference.JDBC30Translation;
32
33 import org.apache.derby.iapi.services.io.StoredFormatIds;
34 import java.util.Properties  ;
35
36 import java.sql.Types ;
37
38 public class TypeCompilerFactoryImpl implements TypeCompilerFactory
39 {
40 private static final String PACKAGE_NAME =
41 "org.apache.derby.impl.sql.compile.";
42
43 static TypeCompiler bitTypeCompiler;
47 static TypeCompiler booleanTypeCompiler;
48 static TypeCompiler charTypeCompiler;
49 static TypeCompiler decimalTypeCompiler ;
50 static TypeCompiler doubleTypeCompiler ;
51 static TypeCompiler intTypeCompiler ;
52 static TypeCompiler longintTypeCompiler ;
53 static TypeCompiler longvarbitTypeCompiler ;
54 static TypeCompiler longvarcharTypeCompiler ;
55 static TypeCompiler nationalCharTypeCompiler ;
56 static TypeCompiler nationalLongvarcharTypeCompiler ;
57 static TypeCompiler nationalVarcharTypeCompiler ;
58 static TypeCompiler realTypeCompiler ;
59 static TypeCompiler smallintTypeCompiler ;
60 static TypeCompiler tinyintTypeCompiler ;
61 static TypeCompiler dateTypeCompiler ;
62 static TypeCompiler timeTypeCompiler ;
63 static TypeCompiler timestampTypeCompiler ;
64 static TypeCompiler varbitTypeCompiler ;
65 static TypeCompiler varcharTypeCompiler ;
66 static TypeCompiler refTypeCompiler ;
67 static TypeCompiler blobTypeCompiler ;
68 static TypeCompiler clobTypeCompiler ;
69 static TypeCompiler nclobTypeCompiler ;
70 static TypeCompiler xmlTypeCompiler ;
71
72
79
80 public TypeCompiler getTypeCompiler(TypeId typeId)
81 {
82 return staticGetTypeCompiler(typeId);
83 }
84
85 static TypeCompiler staticGetTypeCompiler(TypeId typeId)
86 {
87 String sqlTypeName;
88
89 switch (typeId.getJDBCTypeId())
90 {
91 case Types.BINARY:
92 return bitTypeCompiler =
93 getAnInstance(PACKAGE_NAME + "BitTypeCompiler",
94 bitTypeCompiler,
95 typeId);
96
97 case Types.BIT:
98 case JDBC30Translation.SQL_TYPES_BOOLEAN:
99 return booleanTypeCompiler =
100 getAnInstance(PACKAGE_NAME + "BooleanTypeCompiler",
101 booleanTypeCompiler,
102 typeId);
103
104 case Types.CHAR:
105 sqlTypeName = typeId.getSQLTypeName();
106 if (sqlTypeName.equals(TypeId.CHAR_NAME))
107 {
108 return charTypeCompiler =
109 getAnInstance(PACKAGE_NAME + "CharTypeCompiler",
110 charTypeCompiler,
111 typeId);
112 }
113 else
114 {
115 return nationalCharTypeCompiler =
116 getAnInstance(PACKAGE_NAME + "CharTypeCompiler",
117 nationalCharTypeCompiler,
118 typeId);
119 }
120
121 case Types.NUMERIC:
122 case Types.DECIMAL:
123 return decimalTypeCompiler =
124 getAnInstance(PACKAGE_NAME + "NumericTypeCompiler",
125 decimalTypeCompiler,
126 typeId);
127
128 case Types.DOUBLE:
129 return doubleTypeCompiler =
130 getAnInstance(PACKAGE_NAME + "NumericTypeCompiler",
131 doubleTypeCompiler,
132 typeId);
133
134 case Types.INTEGER:
135 return intTypeCompiler =
136 getAnInstance(PACKAGE_NAME + "NumericTypeCompiler",
137 intTypeCompiler,
138 typeId);
139
140 case Types.BIGINT:
141 return longintTypeCompiler =
142 getAnInstance(PACKAGE_NAME + "NumericTypeCompiler",
143 longintTypeCompiler,
144 typeId);
145
146 case JDBC20Translation.SQL_TYPES_BLOB:
147 return blobTypeCompiler =
148 getAnInstance(PACKAGE_NAME + "LOBTypeCompiler",
149 blobTypeCompiler,
150 typeId);
151
152 case Types.LONGVARBINARY:
153 return longvarbitTypeCompiler =
154 getAnInstance(PACKAGE_NAME + "BitTypeCompiler",
155 longvarbitTypeCompiler,
156 typeId);
157
158 case JDBC20Translation.SQL_TYPES_CLOB:
159 sqlTypeName = typeId.getSQLTypeName();
160 if (sqlTypeName.equals(TypeId.CLOB_NAME)) {
161 return clobTypeCompiler =
162 getAnInstance(PACKAGE_NAME + "CLOBTypeCompiler",
163 clobTypeCompiler,
164 typeId);
165 } else {
166 return nclobTypeCompiler =
167 getAnInstance(PACKAGE_NAME + "CLOBTypeCompiler",
168 nclobTypeCompiler,
169 typeId);
170 }
171 case Types.LONGVARCHAR:
172 sqlTypeName = typeId.getSQLTypeName();
173 if (sqlTypeName.equals(TypeId.LONGVARCHAR_NAME))
174 {
175 return longvarcharTypeCompiler =
176 getAnInstance(PACKAGE_NAME + "CharTypeCompiler",
177 longvarcharTypeCompiler,
178 typeId);
179 }
180 else
181 {
182 return nationalLongvarcharTypeCompiler =
183 getAnInstance(PACKAGE_NAME + "CharTypeCompiler",
184 nationalLongvarcharTypeCompiler,
185 typeId);
186 }
187
188 case Types.REAL:
189 return realTypeCompiler =
190 getAnInstance(PACKAGE_NAME + "NumericTypeCompiler",
191 realTypeCompiler,
192 typeId);
193
194 case Types.SMALLINT:
195 return smallintTypeCompiler =
196 getAnInstance(PACKAGE_NAME + "NumericTypeCompiler",
197 smallintTypeCompiler,
198 typeId);
199
200 case Types.TINYINT:
201 return tinyintTypeCompiler =
202 getAnInstance(PACKAGE_NAME + "NumericTypeCompiler",
203 tinyintTypeCompiler,
204 typeId);
205
206 case Types.DATE:
207 return dateTypeCompiler =
208 getAnInstance(PACKAGE_NAME + "DateTypeCompiler",
209 dateTypeCompiler,
210 typeId);
211
212 case Types.TIME:
213 return timeTypeCompiler =
214 getAnInstance(PACKAGE_NAME + "TimeTypeCompiler",
215 timeTypeCompiler,
216 typeId);
217 case Types.TIMESTAMP:
218 return timestampTypeCompiler =
219 getAnInstance(PACKAGE_NAME + "TimestampTypeCompiler",
220 timestampTypeCompiler,
221 typeId);
222 case Types.VARBINARY:
223 return varbitTypeCompiler =
224 getAnInstance(PACKAGE_NAME + "BitTypeCompiler",
225 varbitTypeCompiler,
226 typeId);
227
228 case Types.VARCHAR:
229 sqlTypeName = typeId.getSQLTypeName();
230 if (sqlTypeName.equals(TypeId.VARCHAR_NAME))
231 {
232 return varcharTypeCompiler =
233 getAnInstance(PACKAGE_NAME + "CharTypeCompiler",
234 varcharTypeCompiler,
235 typeId);
236 }
237 else
238 {
239 return nationalVarcharTypeCompiler =
240 getAnInstance(PACKAGE_NAME + "CharTypeCompiler",
241 nationalVarcharTypeCompiler,
242 typeId);
243 }
244
245 case org.apache.derby.iapi.reference.JDBC20Translation.SQL_TYPES_JAVA_OBJECT:
246 case Types.OTHER:
247 if (typeId.isRefTypeId())
248 {
249 return refTypeCompiler = getAnInstance(
250 PACKAGE_NAME + "RefTypeCompiler",
251 refTypeCompiler,
252 typeId);
253 }
254 else
255 {
256 BaseTypeCompiler btc = new UserDefinedTypeCompiler();
259 btc.setTypeId(typeId);
260 return btc;
261 }
262
263 case StoredFormatIds.XML_TYPE_ID:
264 return xmlTypeCompiler =
265 getAnInstance(PACKAGE_NAME + "XMLTypeCompiler",
266 xmlTypeCompiler,
267 typeId);
268
269 }
270
271 if (SanityManager.DEBUG)
272 {
273 SanityManager.THROWASSERT("Unexpected JDBC type id " +
274 typeId.getJDBCTypeId() +
275 " for typeId of class " +
276 typeId.getClass().getName());
277 }
278
279 return null;
280 }
281
282
287 private static TypeCompiler getAnInstance(String className,
288 TypeCompiler anInstance,
289 TypeId typeId)
290 {
291 if (anInstance == null)
292 {
293 Exception exc = null;
294 Class typeCompilerClass = null;
295
296 try
297 {
298 typeCompilerClass = Class.forName(className);
299 anInstance = (TypeCompiler) typeCompilerClass.newInstance();
300 ((BaseTypeCompiler) anInstance).setTypeId(typeId);
301 }
302 catch (ClassNotFoundException cnfe)
303 {
304 exc = cnfe;
305 }
306 catch (IllegalAccessException iae)
307 {
308 exc = iae;
309 }
310 catch (InstantiationException ie)
311 {
312 exc = ie;
313 }
314
315 if (SanityManager.DEBUG)
316 {
317 if (exc != null)
318 {
319 SanityManager.THROWASSERT(
320 "Exception " +
321 exc +
322 " while trying to get new instance of a " +
323 typeCompilerClass.getName());
324 }
325 }
326 }
327
328 return anInstance;
329 }
330 }
331 |
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