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Java > Open Source Codes > org > apache > cayenne > exp > parser > ASTNotBetween


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19
20
21 package org.apache.cayenne.exp.parser;
22
23 import org.apache.cayenne.exp.Expression;
24 import org.apache.cayenne.util.ConversionUtil;
25
26 /**
27  * "Not Between" expression.
28  *
29  * @author Andrus Adamchik
30  */
31 public class ASTNotBetween extends ConditionNode {
32     ASTNotBetween(int id) {
33         super(id);
34     }
35
36     public ASTNotBetween() {
37         super(ExpressionParserTreeConstants.JJTNOTBETWEEN);
38     }
39
40     public ASTNotBetween(ASTPath path, Object JavaDoc value1, Object JavaDoc value2) {
41         super(ExpressionParserTreeConstants.JJTNOTBETWEEN);
42         jjtAddChild(path, 0);
43         jjtAddChild(new ASTScalar(value1), 1);
44         jjtAddChild(new ASTScalar(value2), 2);
45     }
46
47     protected Object JavaDoc evaluateNode(Object JavaDoc o) throws Exception JavaDoc {
48         int len = jjtGetNumChildren();
49         if (len != 3) {
50             return Boolean.FALSE;
51         }
52
53         Comparable JavaDoc c1 = ConversionUtil.toComparable(evaluateChild(0, o));
54
55         if (c1 == null) {
56             return Boolean.FALSE;
57         }
58
59         Comparable JavaDoc c2 = ConversionUtil.toComparable(evaluateChild(1, o));
60         if (c2 == null) {
61             return Boolean.FALSE;
62         }
63
64         Comparable JavaDoc c3 = ConversionUtil.toComparable(evaluateChild(2, o));
65         if (c3 == null) {
66             return Boolean.FALSE;
67         }
68
69         return c1.compareTo(c2) >= 0
70             && c1.compareTo(c3) <= 0 ? Boolean.FALSE : Boolean.TRUE;
71     }
72
73     /**
74      * Creates a copy of this expression node, without copying children.
75      */
76     public Expression shallowCopy() {
77         return new ASTNotBetween(id);
78     }
79
80     protected String JavaDoc getExpressionOperator(int index) {
81         return (index == 2) ? "and" : "not between";
82     }
83
84     public int getType() {
85         return Expression.NOT_BETWEEN;
86     }
87
88 }
89
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