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


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56
57 package org.objectstyle.cayenne.exp.parser;
58
59 import org.objectstyle.cayenne.exp.Expression;
60 import org.objectstyle.cayenne.util.ConversionUtil;
61
62 /**
63  * "Not Between" expression.
64  *
65  * @author Andrei Adamchik
66  */

67 public class ASTNotBetween extends ConditionNode {
68     ASTNotBetween(int id) {
69         super(id);
70     }
71
72     public ASTNotBetween() {
73         super(ExpressionParserTreeConstants.JJTNOTBETWEEN);
74     }
75
76     public ASTNotBetween(ASTPath path, Object JavaDoc value1, Object JavaDoc value2) {
77         super(ExpressionParserTreeConstants.JJTNOTBETWEEN);
78         jjtAddChild(path, 0);
79         jjtAddChild(new ASTScalar(value1), 1);
80         jjtAddChild(new ASTScalar(value2), 2);
81     }
82
83     protected Object JavaDoc evaluateNode(Object JavaDoc o) throws Exception JavaDoc {
84         int len = jjtGetNumChildren();
85         if (len != 3) {
86             return Boolean.FALSE;
87         }
88
89         Comparable JavaDoc c1 = ConversionUtil.toComparable(evaluateChild(0, o));
90
91         if (c1 == null) {
92             return Boolean.FALSE;
93         }
94
95         Comparable JavaDoc c2 = ConversionUtil.toComparable(evaluateChild(1, o));
96         if (c2 == null) {
97             return Boolean.FALSE;
98         }
99
100         Comparable JavaDoc c3 = ConversionUtil.toComparable(evaluateChild(2, o));
101         if (c3 == null) {
102             return Boolean.FALSE;
103         }
104
105         return c1.compareTo(c2) >= 0
106             && c1.compareTo(c3) <= 0 ? Boolean.FALSE : Boolean.TRUE;
107     }
108
109     /**
110      * Creates a copy of this expression node, without copying children.
111      */

112     public Expression shallowCopy() {
113         return new ASTNotBetween(id);
114     }
115
116     protected String JavaDoc getExpressionOperator(int index) {
117         return (index == 2) ? "and" : "not between";
118     }
119
120     public int getType() {
121         return Expression.NOT_BETWEEN;
122     }
123
124 }
125
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