01: /*
02: * Copyright 1999 Sun Microsystems, Inc. All Rights Reserved.
03: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04: *
05: * This code is free software; you can redistribute it and/or modify it
06: * under the terms of the GNU General Public License version 2 only, as
07: * published by the Free Software Foundation. Sun designates this
08: * particular file as subject to the "Classpath" exception as provided
09: * by Sun in the LICENSE file that accompanied this code.
10: *
11: * This code is distributed in the hope that it will be useful, but WITHOUT
12: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14: * version 2 for more details (a copy is included in the LICENSE file that
15: * accompanied this code).
16: *
17: * You should have received a copy of the GNU General Public License version
18: * 2 along with this work; if not, write to the Free Software Foundation,
19: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20: *
21: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22: * CA 95054 USA or visit www.sun.com if you need additional information or
23: * have any questions.
24: */
25: /*
26: * COMPONENT_NAME: idl.parser
27: *
28: * ORIGINS: 27
29: *
30: * Licensed Materials - Property of IBM
31: * 5639-D57 (C) COPYRIGHT International Business Machines Corp. 1997, 1999
32: * RMI-IIOP v1.0
33: *
34: * @(#)LessThan.java 1.20 07/05/05
35: */
36:
37: package com.sun.tools.corba.se.idl.constExpr;
38:
39: // NOTES:
40:
41: import com.sun.tools.corba.se.idl.Util;
42: import java.math.BigInteger;
43:
44: public class LessThan extends BinaryExpr {
45: protected LessThan(Expression leftOperand, Expression rightOperand) {
46: super ("<", leftOperand, rightOperand);
47: } // ctor
48:
49: public Object evaluate() throws EvaluationException {
50: try {
51: Object left = left().evaluate();
52: Object right = right().evaluate();
53: if (left instanceof Boolean) {
54: String[] parameters = {
55: Util.getMessage("EvaluationException.lessThan"),
56: left().value().getClass().getName(),
57: right().value().getClass().getName() };
58: throw new EvaluationException(Util.getMessage(
59: "EvaluationException.1", parameters));
60: } else {
61: Number l = (Number) left;
62: Number r = (Number) right().evaluate();
63: if (l instanceof Float || l instanceof Double
64: || r instanceof Float || r instanceof Double)
65: value(new Boolean(l.doubleValue() < r.doubleValue()));
66: else
67: //daz value (new Boolean (l.longValue () < r.longValue ()));
68: value(new Boolean(((BigInteger) l)
69: .compareTo((BigInteger) r) < 0));
70: }
71: } catch (ClassCastException e) {
72: String[] parameters = {
73: Util.getMessage("EvaluationException.lessThan"),
74: left().value().getClass().getName(),
75: right().value().getClass().getName() };
76: throw new EvaluationException(Util.getMessage(
77: "EvaluationException.1", parameters));
78: }
79: return value();
80: } // evaluate
81: } // class LessThan
|