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Java > Open Source Codes > org > outerj > daisy > query > model > functions > SubstractFunction


1 /*
2  * Copyright 2004 Outerthought bvba and Schaubroeck nv
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */

16 package org.outerj.daisy.query.model.functions;
17
18 import java.math.BigDecimal JavaDoc;
19
20 public class SubstractFunction extends AbstractBinaryMathFunction {
21     static final String JavaDoc NAME = "-";
22
23     public String JavaDoc getFunctionName() {
24         return NAME;
25     }
26
27     protected Object JavaDoc performCalculation(BigDecimal JavaDoc value1, BigDecimal JavaDoc value2) {
28         return value1.subtract(value2);
29     }
30
31     protected String JavaDoc getMathSymbol() {
32         return " - ";
33     }
34 }
35
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