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1 package com.daffodilwoods.daffodildb.server.sql99.expression.numericvalueexpression;
2
3 import com.daffodilwoods.daffodildb.server.datasystem.interfaces.*;
4 import com.daffodilwoods.daffodildb.server.serversystem.*;
5 import com.daffodilwoods.daffodildb.server.sql99.common.*;
6 import com.daffodilwoods.daffodildb.server.sql99.expression.rowvalueexpression.*;
7 import com.daffodilwoods.daffodildb.server.sql99.token.*;
8 import com.daffodilwoods.daffodildb.server.sql99.utils.*;
9 import com.daffodilwoods.daffodildb.utils.*;
10 import com.daffodilwoods.daffodildb.utils.field.*;
11 import com.daffodilwoods.database.resource.*;
12 import com.daffodilwoods.database.utility.P;
13
14 public class powerfunction extends AbstractNumericValueFunction {
15
16 public parencommanumericvalueexpression _parencommanumericvalueexpression0;
17 public SNONRESERVEDWORD136444255 _SNONRESERVEDWORD1364442551;
18
19 public Object  run(Object object) throws com.daffodilwoods.database.resource.DException {
20 FieldBase[] res = GeneralPurposeStaticClass.changeIntoFieldBase( (Object []) _parencommanumericvalueexpression0.run(object));
21 FieldBase result1 = res[0];
22 FieldBase result2 = res[1];
23 if (result1.isNull() || result2.isNull()) {
24 return new FieldLiteral(FieldUtility.NULLBUFFERRANGE, DOUBLE);
25 }
26 return getResult(getDataType(result1), getDataType(result2),
27 result1.getObject(), result2.getObject());
28 }
29
30 public ColumnDetails[] getExistingColumnDetails() throws DException {
31 return columnDetails;
32 }
33
34 public ParameterInfo[] getParameterInfo() throws DException {
35 ParameterInfo[] paramInfo = super.getParameterInfo();
36 for (int i = 0; i < paramInfo.length; i++) {
37 if (paramInfo[i].getQuestionMark()) {
38 paramInfo[i].setDataType(Datatypes.DOUBLE);
39 paramInfo[i].setName("POWER Arg");
40
41 }
42 }
43 return paramInfo;
44 }
45
46
47 private Object getResult(int type1, int type2, Object result1, Object result2) throws DException {
48 if (type1 <= 15) {
49 if (type2 <= 15) {
50 return power( ( (Number ) result1).doubleValue(),
51 ( (Number ) result2).doubleValue());
52 }
53 throw new DException("DSE4108", new Object [] {StaticClass.getDataTypeName(type2), "POWER"});
54 }
55 throw new DException("DSE4108", new Object [] {StaticClass.getDataTypeName(type1), "POWER"});
56
80 }
81
82
228
229 private Object power(double value1, double value2) throws DException {
230 return new FieldLiteral(new Double (Math.pow(value1, value2)), Datatype.DOUBLE);
231 }
232
233 public AbstractRowValueExpression[] getChilds() {
234 AbstractRowValueExpression[] childs = new AbstractRowValueExpression[] {_parencommanumericvalueexpression0};
235 return childs;
236 }
237
238 public String getType() throws DException {
239 return (String ) _SNONRESERVEDWORD1364442551.run(null);
240 }
241
242 public String toString() {
243 StringBuffer sb = new StringBuffer ();
244 sb.append(" ");
245 sb.append(_SNONRESERVEDWORD1364442551);
246 sb.append(_parencommanumericvalueexpression0);
247 return sb.toString();
248 }
249
250 public Object clone() throws CloneNotSupportedException {
251 powerfunction tempClass = new powerfunction();
252 tempClass._parencommanumericvalueexpression0 = (parencommanumericvalueexpression) _parencommanumericvalueexpression0.clone();
253 tempClass._SNONRESERVEDWORD1364442551 = (SNONRESERVEDWORD136444255) _SNONRESERVEDWORD1364442551.clone();
254 return tempClass;
255 }
256
257 protected ParameterInfo[] getThisParameterInfo() throws DException {
258 ParameterInfo parameterInfo = new ParameterInfo();
259 parameterInfo.setName(toString());
260 parameterInfo.setDataType(Datatypes.DOUBLE);
261 return new ParameterInfo[] {
262 parameterInfo};
263 }
264
265 public ByteComparison getByteComparison(Object object) throws DException {
266 ByteComparison byteComparison = new ByteComparison(false, new int[] {DOUBLE});
267 byteComparison.setSize(getColumnSize(object));
268 return byteComparison;
269 }
270
271
362 public _Reference[] checkSemantic(_ServerSession parent) throws DException {
363 _Reference[] ref = super.checkSemantic(parent);
364 if(ref!=null) {
365 return ref;
366 }
367 int type[] = _parencommanumericvalueexpression0.getByteComparison(parent).getDataTypes();
368 if (type[0] == -1 || type[0] <= 15) {
369 if (type[1] == -1 || type[1] <= 15) {
370 return ref;
371 }
372 throw new DException("DSE4108",
373 new Object [] {StaticClass.getDataTypeName(type[1]),
374 "POWER"});
375 }
376 throw new DException("DSE4108",
377 new Object [] {StaticClass.getDataTypeName(type[0]),
378 "POWER"});
379
380 }
381 public int getColumnSize(Object object) throws DException {
382 return Datatypes.DOUBLESIZE;
383 }
384
385 }
386 |
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