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Java > Open Source Codes > com > daffodilwoods > daffodildb > server > sql99 > expression > numericvalueexpression > tanfunction


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
13 public class tanfunction extends AbstractNumericValueFunction {
14
15    public parennumericvalueexpression _parennumericvalueexpression0;
16    public SNONRESERVEDWORD136444255 _SNONRESERVEDWORD1364442551;
17
18    protected Object JavaDoc getResult(int type, Object JavaDoc object) throws DException {
19       if (object == null) {
20          return new FieldLiteral(FieldUtility.NULLBUFFERRANGE, Datatype.DOUBLE);
21       }
22       if (type <= 15) {
23          return new FieldLiteral(new Double JavaDoc(Math.tan( ( (Number JavaDoc) object).doubleValue())), Datatype.DOUBLE);
24       }
25       throw new DException("DSE4108", new Object JavaDoc[] {StaticClass.getDataTypeName(type), "TAN"});
26       /* switch(type){
27          case BYTE : case TINYINT :
28          case INTEGER : case INT :
29          case REAL :
30          case DOUBLE : case FLOAT : case DOUBLEPRECISION :
31          case LONG : case BIGINT :
32          case SHORT : case SMALLINT :
33          case BIGDECIMAL : case DEC : case DECIMAL : case NUMERIC :
34            Number number = (Number)object;
35            return new FieldLiteral(new Double(Math.tan(number.doubleValue())),Datatype.DOUBLE);
36          default :
37            throw new DException("DSE4108",new Object[]{StaticClass.getDataTypeName(type),"TAN"});
38        }*/
39    }
40
41    /* protected Object getResult(int type,Object object) throws DException {
42        if(object == null)
43          return new FieldLiteral(FieldUtility.NULLBUFFERRANGE,Datatype.DOUBLE);
44          switch(type){
45            case BYTE : case TINYINT :
46              Byte byteV = (Byte)object;
47              return new FieldLiteral(new Double(Math.tan(byteV.doubleValue())),Datatype.DOUBLE);
48            case INTEGER : case INT :
49              Integer integer = (Integer)object;
50              return new FieldLiteral(new Double(Math.tan(integer.doubleValue())),Datatype.DOUBLE);
51            case REAL :
52              Float floatV = (Float)object;
53              return new FieldLiteral(new Double(Math.tan(floatV.doubleValue())),Datatype.DOUBLE);
54            case DOUBLE : case FLOAT : case DOUBLEPRECISION :
55              Double doubleV = (Double)object;
56              return new FieldLiteral(new Double(Math.tan(doubleV.doubleValue())),Datatype.DOUBLE);
57            case LONG : case BIGINT :
58              Long longV = (Long)object;
59              return new FieldLiteral(new Double(Math.tan(longV.doubleValue())),Datatype.DOUBLE);
60            case SHORT : case SMALLINT :
61              Short shortV = (Short)object;
62              return new FieldLiteral(new Double(Math.tan(shortV.doubleValue())),Datatype.DOUBLE);
63            case BIGDECIMAL : case DEC : case DECIMAL : case NUMERIC :
64              BigDecimal bigDecimal = (BigDecimal)object;
65              return new FieldLiteral(new Double(Math.tan(bigDecimal.doubleValue())),Datatype.DOUBLE);
66            default :
67              throw new DException("DSE4108",new Object[]{StaticClass.getDataTypeName(type),"TAN"});
68          }
69      } */
70
71    public AbstractRowValueExpression[] getChilds() {
72       AbstractRowValueExpression[] childs = new AbstractRowValueExpression[] {_parennumericvalueexpression0};
73       return childs;
74    }
75
76    public String JavaDoc getType() throws DException {
77       return (String JavaDoc) _SNONRESERVEDWORD1364442551.run(null);
78    }
79
80    public String JavaDoc toString() {
81       StringBuffer JavaDoc sb = new StringBuffer JavaDoc();
82       sb.append(" ");
83       sb.append(_SNONRESERVEDWORD1364442551);
84       sb.append(_parennumericvalueexpression0);
85       return sb.toString();
86    }
87
88    public Object JavaDoc clone() throws CloneNotSupportedException JavaDoc {
89       tanfunction tempClass = new tanfunction();
90       tempClass._parennumericvalueexpression0 = (parennumericvalueexpression) _parennumericvalueexpression0.clone();
91       tempClass._SNONRESERVEDWORD1364442551 = (SNONRESERVEDWORD136444255) _SNONRESERVEDWORD1364442551.clone();
92       return tempClass;
93    }
94
95    public ParameterInfo[] getParameterInfo() throws DException {
96      ParameterInfo[] paramInfo = super.getParameterInfo();
97      for (int i = 0; i < paramInfo.length; i++) {
98        if (paramInfo[i].getQuestionMark()) {
99          paramInfo[i].setDataType(Datatypes.DOUBLE);
100          paramInfo[i].setName("TAN Arg");
101        }
102      }
103      return paramInfo;
104    }
105
106
107    public ByteComparison getByteComparison(Object JavaDoc object) throws DException {
108    ByteComparison byteComparison = new ByteComparison(false, new int[] {DOUBLE});
109    byteComparison.setSize(getColumnSize(object));
110    return byteComparison;
111    }
112
113    public _Reference[] checkSemantic(_ServerSession parent) throws DException {
114       _Reference[] ref = super.checkSemantic(parent);
115       if(ref!=null) {
116         return ref;
117        }
118       int type = _parennumericvalueexpression0.getByteComparison(parent).getDataTypes()[0];
119       if (type == -1 || type <= 15) {
120          return ref;
121       }
122       throw new DException("DSE4108", new Object JavaDoc[] {StaticClass.getDataTypeName(type), "TAN"});
123    }
124   public int getColumnSize(Object JavaDoc object) throws DException {
125           return Datatypes.DOUBLESIZE;
126     }
127
128 }
129
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