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1
21 package com.db4o.nativequery.expr.cmp;
22
23
24
25 public class ArithmeticExpression implements ComparisonOperand {
26 private ArithmeticOperator _op;
27 private ComparisonOperand _left;
28 private ComparisonOperand _right;
29
30 public ArithmeticExpression(ComparisonOperand left, ComparisonOperand right,ArithmeticOperator op) {
31 this._op=op;
32 this._left = left;
33 this._right = right;
34 }
35
36 public ComparisonOperand left() {
37 return _left;
38 }
39
40 public ComparisonOperand right() {
41 return _right;
42 }
43
44 public ArithmeticOperator op() {
45 return _op;
46 }
47
48 public String  toString() {
49 return "("+_left+_op+_right+")";
50 }
51
52 public boolean equals(Object obj) {
53 if(this==obj) {
54 return true;
55 }
56 if(obj==null||obj.getClass()!=getClass()) {
57 return false;
58 }
59 ArithmeticExpression casted=(ArithmeticExpression)obj;
60 return _left.equals(casted._left)&&_right.equals(casted._right)&&_op.equals(casted._op);
61 }
62
63 public int hashCode() {
64 int hc=_left.hashCode();
65 hc*=29+_right.hashCode();
66 hc*=29+_op.hashCode();
67 return hc;
68 }
69
70 public void accept(ComparisonOperandVisitor visitor) {
71 visitor.visit(this);
72 }
73 }
74 |
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