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1 package com.daffodilwoods.daffodildb.server.sql99.expression.numericvalueexpression;
2
3 import com.daffodilwoods.daffodildb.server.sql99.common.*;
4 import com.daffodilwoods.daffodildb.server.sql99.expression.rowvalueexpression.*;
5 import com.daffodilwoods.daffodildb.server.sql99.token.*;
6 import com.daffodilwoods.daffodildb.server.sql99.utils.*;
7 import com.daffodilwoods.daffodildb.utils.field.*;
8 import com.daffodilwoods.database.resource.*;
9 import com.daffodilwoods.daffodildb.server.serversystem._ServerSession;
10 import com.daffodilwoods.database.utility.P;
11
12 public class factor extends AbstractNumericValueFunction implements term, Datatypes {
13 public numericprimary _numericprimary0;
14 public sign _Optsign1;
15 private static Byte  ZERO = new Byte ( (byte) 0);
16
17 public Object run(Object object) throws com.daffodilwoods.database.resource.DException {
18 if (_Optsign1 == null) {
19 return _numericprimary0.run(object);
20 }
21 FieldBase result = (FieldBase) _numericprimary0.run(object);
22 if (result.isNull()) {
23 return result;
24 }
25 String sign = (String ) _Optsign1.run(object);
26 if (sign.equals("-")) {
27 Object obj = result.getObject();
28 return GeneralPurposeStaticClass.minus(BYTE, result.getDatatype(), ZERO, obj);
29 }
30 return result;
31 }
32
33
34 public AbstractRowValueExpression[] getChilds() {
35 AbstractRowValueExpression[] childs = new AbstractRowValueExpression[] { (AbstractRowValueExpression) _numericprimary0};
36 return childs;
37 }
38
39 public ColumnDetails[] getColumnDetails() throws DException {
40 if (columnDetails == null) {
41 columnDetails = _numericprimary0.getColumnDetails();
42 if (_Optsign1 != null) {
43 String sign = (String ) _Optsign1.run(null);
44 boolean b = sign.equalsIgnoreCase("-");
45 for (int i = 0, length = columnDetails.length; i < length; i++) {
46 columnDetails[i].setNegativeValueFlag(b);
47 }
48 }
49 }
50 return columnDetails;
51 }
52
53 public String toString() {
54 StringBuffer sb = new StringBuffer ();
55 sb.append(" ");
56 if (_Optsign1 != null) {
57 sb.append(_Optsign1);
58 }
59 sb.append(" ");
60 sb.append(_numericprimary0);
61 return sb.toString();
62 }
63
64 public Object clone() throws CloneNotSupportedException {
65 factor tempClass = new factor();
66 tempClass._numericprimary0 = (numericprimary) _numericprimary0.clone();
67 if (_Optsign1 != null) {
68 tempClass._Optsign1 = (sign) _Optsign1.clone();
69 }
70 return tempClass;
71 }
72
73 public ParameterInfo[] getParameterInfo() throws DException {
74 return _numericprimary0.getParameterInfo();
75 }
76
77 public ByteComparison getByteComparison(Object object) throws DException {
78 ByteComparison b = _numericprimary0.getByteComparison(object);
79 if (_Optsign1 != null && "-".equals(_Optsign1.run(null))) {
80 int dt = GeneralPurposeStaticClass.getDataTypeForArithmetic(BYTE, getDataTypeForByte(b));
81 return new ByteComparison(false, new int[] {dt});
82 }
83 return b;
84 }
85
86 public int getCardinality() throws DException {
87 return _numericprimary0.getCardinality();
88 }
89
90 }
91 |
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