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1
10
11 package com.triactive.jdo.store;
12
13 import java.util.List  ;
14
15
16 class NumericExpression extends SQLExpression
17 {
18 public NumericExpression(QueryStatement qs)
19 {
20 super(qs);
21 }
22
23 public NumericExpression(QueryStatement qs, QueryStatement.QueryColumn qsc)
24 {
25 super(qs, qsc);
26 }
27
28 public NumericExpression(String functionName, List args)
29 {
30 super(functionName, args);
31 }
32
33 public NumericExpression(MonadicOperator op, SQLExpression operand)
34 {
35 super(op, operand);
36 }
37
38 public NumericExpression(SQLExpression operand1, DyadicOperator op, SQLExpression operand2)
39 {
40 super(operand1, op, operand2);
41 }
42
43 public BooleanExpression eq(SQLExpression expr)
44 {
45 if (expr instanceof NullLiteral)
46 return expr.eq(this);
47 else if (expr instanceof NumericExpression)
48 return new BooleanExpression(this, OP_EQ, expr);
49 else
50 return super.eq(expr);
51 }
52
53 public BooleanExpression noteq(SQLExpression expr)
54 {
55 if (expr instanceof NullLiteral)
56 return expr.noteq(this);
57 else if (expr instanceof NumericExpression)
58 return new BooleanExpression(this, OP_NOTEQ, expr);
59 else
60 return super.noteq(expr);
61 }
62
63 public BooleanExpression lt(SQLExpression expr)
64 {
65 if (expr instanceof NumericExpression)
66 return new BooleanExpression(this, OP_LT, expr);
67 else
68 return super.lt(expr);
69 }
70
71 public BooleanExpression lteq(SQLExpression expr)
72 {
73 if (expr instanceof NumericExpression)
74 return new BooleanExpression(this, OP_LTEQ, expr);
75 else
76 return super.lteq(expr);
77 }
78
79 public BooleanExpression gt(SQLExpression expr)
80 {
81 if (expr instanceof NumericExpression)
82 return new BooleanExpression(this, OP_GT, expr);
83 else
84 return super.gt(expr);
85 }
86
87 public BooleanExpression gteq(SQLExpression expr)
88 {
89 if (expr instanceof NumericExpression)
90 return new BooleanExpression(this, OP_GTEQ, expr);
91 else
92 return super.gteq(expr);
93 }
94
95 public BooleanExpression in(SQLExpression expr)
96 {
97 return new BooleanExpression(this, OP_IN, expr);
98 }
99
100 public SQLExpression add(SQLExpression expr)
101 {
102 if (expr instanceof NumericExpression)
103 return new NumericExpression(this, OP_ADD, expr);
104 else
105 return super.add(expr);
106 }
107
108 public SQLExpression sub(SQLExpression expr)
109 {
110 if (expr instanceof NumericExpression)
111 return new NumericExpression(this, OP_SUB, expr);
112 else
113 return super.sub(expr);
114 }
115
116 public SQLExpression mul(SQLExpression expr)
117 {
118 if (expr instanceof NumericExpression)
119 return new NumericExpression(this, OP_MUL, expr);
120 else
121 return super.mul(expr);
122 }
123
124 public SQLExpression div(SQLExpression expr)
125 {
126 if (expr instanceof NumericExpression)
127 return new NumericExpression(this, OP_DIV, expr);
128 else
129 return super.div(expr);
130 }
131
132 public SQLExpression neg()
133 {
134 return new NumericExpression(OP_NEG, this);
135 }
136 }
137 |
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