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Java > Open Source Codes > org > jacorb > notification > filter > etcl > InOperator


1 package org.jacorb.notification.filter.etcl;
2
3 /*
4  * JacORB - a free Java ORB
5  *
6  * Copyright (C) 1999-2004 Gerald Brose
7  *
8  * This library is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU Library General Public
10  * License as published by the Free Software Foundation; either
11  * version 2 of the License, or (at your option) any later version.
12  *
13  * This library is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16  * Library General Public License for more details.
17  *
18  * You should have received a copy of the GNU Library General Public
19  * License along with this library; if not, write to the Free
20  * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21  *
22  */
23
24 import org.jacorb.notification.filter.ETCLEvaluator;
25 import org.jacorb.notification.filter.EvaluationContext;
26 import org.jacorb.notification.filter.EvaluationException;
27 import org.jacorb.notification.filter.EvaluationResult;
28 import org.omg.CORBA.Any JavaDoc;
29
30 import antlr.Token;
31
32 /** A simple node to represent IN operation */
33 public class InOperator extends BinaryOperator
34 {
35
36     public InOperator(Token tok)
37     {
38         super(tok);
39         setName("InOperator");
40     }
41
42     public String JavaDoc toString()
43     {
44         return " in";
45     }
46
47     public EvaluationResult evaluate(EvaluationContext context, EvaluationResult left,
48             EvaluationResult right) throws EvaluationException
49     {
50
51         Any JavaDoc _any = right.getAny();
52         ETCLEvaluator _evaluator = context.getDynamicEvaluator();
53
54         return _evaluator.evaluateElementInSequence(context, left, _any);
55     }
56
57     public void acceptInOrder(AbstractTCLVisitor visitor) throws VisitorException
58     {
59         left().acceptInOrder(visitor);
60         visitor.visitIn(this);
61         right().acceptInOrder(visitor);
62     }
63
64     public void acceptPreOrder(AbstractTCLVisitor visitor) throws VisitorException
65     {
66         visitor.visitIn(this);
67         left().acceptPreOrder(visitor);
68         right().acceptPreOrder(visitor);
69     }
70
71     public void acceptPostOrder(AbstractTCLVisitor visitor) throws VisitorException
72     {
73         left().acceptPostOrder(visitor);
74         right().acceptPostOrder(visitor);
75         visitor.visitIn(this);
76     }
77 }
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