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Java > Open Source Codes > org > xquark > extractor > algebra > DefaultAlgebraVisitor


1 /*
2  * This file belongs to the XQuark distribution.
3  * Copyright (C) 2003 Universite de Versailles Saint-Quentin.
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
7  * License as published by the Free Software Foundation; either
8  * version 2.1 of the License, or (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  * Lesser General Public License for more details.
14  *
15  * You should have received a copy of the GNU Lesser General Public
16  * License along with this program; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307.
18  * You can also get it at http://www.gnu.org/licenses/lgpl.html
19  *
20  * For more information on this software, see http://www.xquark.org.
21  */
22
23 package org.xquark.extractor.algebra;
24
25 import org.xquark.extractor.common.SqlWrapperException;
26 import org.xquark.extractor.xfunctions.*;
27
28 /**
29  *
30  * This base implementation of {@link org.xquark.extractor.algebra.AlgebraVisitor}
31  * perform a call to the super implementation for each algebra node visited.
32  */
33 public abstract class DefaultAlgebraVisitor implements AlgebraVisitor {
34     private static final String JavaDoc RCSRevision = "$Revision: 1.5 $";
35     private static final String JavaDoc RCSName = "$Name: $";
36
37     protected Expression expr = null;
38
39     public void visit(Expression arg) throws SqlWrapperException {
40         expr = arg;
41     }
42
43     public void visit(Attribute arg) throws SqlWrapperException {
44         visit((Expression)arg);
45     }
46
47     public void visit(AttributeExpression arg) throws SqlWrapperException {
48         visit((Expression)arg);
49     }
50
51     public void visit(BinaryOperator arg) throws SqlWrapperException {
52         visit((Expression)arg);
53     }
54
55     public void visit(BinaryAtomicOp arg) throws SqlWrapperException {
56         visit((BinaryOperator)arg);
57     }
58
59     public void visit(BinaryAlgebra arg) throws SqlWrapperException {
60         visit((BinaryOperator)arg);
61     }
62
63     public void visit(BinOpArithmetic arg) throws SqlWrapperException {
64         visit((BinaryAtomicOp)arg);
65     }
66
67     public void visit(BinOpBoolean arg) throws SqlWrapperException {
68         visit((BinaryAtomicOp)arg);
69     }
70
71     public void visit(BinOpCompare arg) throws SqlWrapperException {
72         visit((BinaryAtomicOp)arg);
73     }
74
75     public void visit(BinOpCompareAny arg) throws SqlWrapperException {
76         visit((BinaryAtomicOp)arg);
77     }
78
79     public void visit(BinOpDifference arg) throws SqlWrapperException {
80         visit((BinaryAlgebra)arg);
81     }
82
83     public void visit(BinOpIntersect arg) throws SqlWrapperException {
84         visit((BinaryAlgebra)arg);
85     }
86
87     public void visit(BinOpMerge arg) throws SqlWrapperException {
88         visit((BinaryAlgebra)arg);
89     }
90
91     public void visit(BinOpOuterJoin arg) throws SqlWrapperException {
92         visit((BinaryOperator)arg);
93     }
94
95     public void visit(BinOpUnion arg) throws SqlWrapperException {
96         visit((BinaryAlgebra)arg);
97     }
98
99     public void visit(DummyTable arg) throws SqlWrapperException {
100         visit((Expression)arg);
101     }
102
103     public void visit(FunAggregate arg) throws SqlWrapperException {
104         visit((Expression)arg);
105     }
106
107     public void visit(IfThenElse arg) throws SqlWrapperException {
108         visit((Expression)arg);
109     }
110
111     public void visit(Join arg) throws SqlWrapperException {
112         visit((Expression)arg);
113     }
114
115     public void visit(Literal arg) throws SqlWrapperException {
116         visit((Expression)arg);
117     }
118
119     public void visit(ExternalVariable arg) throws SqlWrapperException {
120         visit((Literal)arg);
121     }
122
123     public void visit(LitBoolean arg) throws SqlWrapperException {
124         visit((Literal)arg);
125     }
126
127     public void visit(LitDate arg) throws SqlWrapperException {
128         visit((Literal)arg);
129     }
130
131     public void visit(LitDecimal arg) throws SqlWrapperException{
132         visit((Literal)arg);
133     }
134
135     public void visit(LitDouble arg) throws SqlWrapperException {
136         visit((Literal)arg);
137     }
138
139     public void visit(LitFloat arg) throws SqlWrapperException {
140         visit((Literal)arg);
141     }
142
143     public void visit(LitInteger arg) throws SqlWrapperException {
144         visit((Literal)arg);
145     }
146
147     public void visit(LitList arg) throws SqlWrapperException{
148         visit((Expression)arg);
149     }
150     
151     public void visit(LitNull arg) throws SqlWrapperException{
152         visit((Literal)arg);
153     }
154
155     public void visit(LitString arg) throws SqlWrapperException {
156         visit((Literal)arg);
157     }
158
159
160     public void visit(OuterJoinPredicate arg) throws SqlWrapperException {
161         visit((Expression)arg);
162     }
163
164     public void visit(RenameItem arg) throws SqlWrapperException {
165         visit((UnaryAtomicOp)arg);
166     }
167
168     public void visit(RenameRelation arg) throws SqlWrapperException {
169         visit((UnaryAlgebra)arg);
170     }
171
172     public void visit(SortSpecification arg) throws SqlWrapperException {
173         visit((Expression)arg);
174     }
175
176     public void visit(Table arg) throws SqlWrapperException {
177         visit((Expression)arg);
178     }
179
180     public void visit(TupleExpression arg) throws SqlWrapperException {
181         visit((Expression)arg);
182     }
183
184     public void visit(TempValue arg) throws SqlWrapperException {
185         visit((UnaryOperator)arg);
186     }
187
188     public void visit(ConstantTempTable arg) throws SqlWrapperException {
189         visit((Table)arg);
190     }
191
192     public void visit(UnaryOperator arg) throws SqlWrapperException {
193         visit((Expression)arg);
194     }
195
196     public void visit(UnaryAlgebra arg) throws SqlWrapperException {
197         visit((UnaryOperator)arg);
198     }
199
200     public void visit(UnaryAtomicOp arg) throws SqlWrapperException {
201         visit((UnaryOperator)arg);
202     }
203
204     public void visit(UnOpAggregate arg) throws SqlWrapperException {
205         visit((UnOpProject)arg);
206     }
207
208     public void visit(UnOpExists arg) throws SqlWrapperException {
209         visit((UnaryAtomicOp)arg);
210     }
211
212     public void visit(UnOpGroup arg) throws SqlWrapperException {
213         visit((UnaryAlgebra)arg);
214     }
215
216     public void visit(TempTable arg) throws SqlWrapperException {
217         visit((UnaryAlgebra)arg);
218     }
219
220     public void visit(UnOpIsNull arg) throws SqlWrapperException {
221         visit((UnaryAtomicOp)arg);
222     }
223
224     public void visit(UnOpMinus arg) throws SqlWrapperException {
225         visit((UnaryAtomicOp)arg);
226     }
227
228     public void visit(UnOpNot arg) throws SqlWrapperException {
229         visit((UnaryAtomicOp)arg);
230     }
231
232     public void visit(UnOpProject arg) throws SqlWrapperException {
233         visit((UnaryAlgebra)arg);
234     }
235
236     public void visit(UnOpRestrict arg) throws SqlWrapperException {
237         visit((UnaryAlgebra)arg);
238     }
239
240     public void visit(UnOpSort arg) throws SqlWrapperException {
241         visit((UnaryAlgebra)arg);
242     }
243
244     public void visit(XFunction arg) throws SqlWrapperException {
245         visit((Expression)arg);
246     }
247
248     public void visit(Xfunction_Boolean arg) throws SqlWrapperException {
249         visit((XFunction)arg);
250     }
251
252     public void visit(Xfunction_Date arg) throws SqlWrapperException {
253         visit((XFunction)arg);
254     }
255
256     public void visit(Xfunction_DateTime arg) throws SqlWrapperException {
257         visit((XFunction)arg);
258     }
259
260     public void visit(Xfunction_Integer arg) throws SqlWrapperException {
261         visit((XFunction)arg);
262     }
263
264     public void visit(Xfunction_String arg) throws SqlWrapperException {
265         visit((XFunction)arg);
266     }
267
268     public void visit(AfTrim arg) throws SqlWrapperException {
269         visit((Xfunction_String)arg);
270     }
271
272     public void visit(AfCast arg) throws SqlWrapperException {
273         visit((Expression)arg);
274     }
275
276     public void visit(XfCast arg) throws SqlWrapperException {
277         visit((Expression)arg);
278     }
279
280     public void visit(XfAbs arg) throws SqlWrapperException{
281         visit((XFunction)arg);
282     }
283
284     public void visit(XfCeiling arg) throws SqlWrapperException {
285         visit((Xfunction_Integer)arg);
286     }
287
288     public void visit(XfConcat arg) throws SqlWrapperException {
289         visit((Xfunction_String)arg);
290     }
291
292     public void visit(XfContains arg) throws SqlWrapperException {
293         visit((Xfunction_Boolean)arg);
294     }
295
296     public void visit(XfCurrentDateTime arg) throws SqlWrapperException {
297         visit((XFunction)arg);
298     }
299
300     public void visit(XfGetCenturyFromDate arg) throws SqlWrapperException {
301         visit((Xfunction_Integer)arg);
302     }
303
304     public void visit(XfGetHourFromTime arg) throws SqlWrapperException {
305         visit((Xfunction_Integer)arg);
306     }
307
308     public void visit(XfGetMinutesFromtime arg) throws SqlWrapperException {
309         visit((Xfunction_Integer)arg);
310     }
311
312     public void visit(XfGetSecondsFromtime arg) throws SqlWrapperException {
313         visit((Xfunction_Integer)arg);
314     }
315
316     public void visit(XfDate arg) throws SqlWrapperException{
317         visit((XFunction)arg);
318     }
319
320     public void visit(XfDateTime arg) throws SqlWrapperException{
321         visit((XFunction)arg);
322     }
323
324     public void visit(XfEndsWith arg) throws SqlWrapperException {
325         visit((Xfunction_Boolean)arg);
326     }
327
328     public void visit(XfFloor arg) throws SqlWrapperException {
329         visit((Xfunction_Integer)arg);
330     }
331
332     public void visit(XfLowerCase arg) throws SqlWrapperException {
333         visit((Xfunction_String)arg);
334     }
335
336     public void visit(XfRound arg) throws SqlWrapperException {
337         visit((Xfunction_Integer)arg);
338     }
339
340     public void visit(XfStartsWith arg) throws SqlWrapperException {
341         visit((Xfunction_Boolean)arg);
342     }
343
344     public void visit(XfStringLength arg) throws SqlWrapperException {
345         visit((Xfunction_Integer)arg);
346     }
347
348     public void visit(XfSubString arg) throws SqlWrapperException {
349         visit((Xfunction_String)arg);
350     }
351
352     public void visit(XfTime arg) throws SqlWrapperException{
353         visit((XFunction)arg);
354     }
355
356     public void visit(XfUpperCase arg) throws SqlWrapperException {
357         visit((Xfunction_String)arg);
358     }
359
360     public Expression getVisitedExpression() {
361         return expr;
362     }
363 }
364
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