1 package org.apache.velocity.runtime.parser.node; 2 3 /* 4 * Licensed to the Apache Software Foundation (ASF) under one 5 * or more contributor license agreements. See the NOTICE file 6 * distributed with this work for additional information 7 * regarding copyright ownership. The ASF licenses this file 8 * to you under the Apache License, Version 2.0 (the 9 * "License"); you may not use this file except in compliance 10 * with the License. You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, 15 * software distributed under the License is distributed on an 16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 17 * KIND, either express or implied. See the License for the 18 * specific language governing permissions and limitations 19 * under the License. 20 */ 21 22 import org.apache.velocity.context.InternalContextAdapter; 23 import org.apache.velocity.runtime.parser.Parser; 24 25 /** 26 * Handles subtraction of nodes (in #set() )<br><br> 27 * 28 * Please look at the Parser.jjt file which is 29 * what controls the generation of this class. 30 * 31 * @author <a href="mailto:wglass@forio.com">Will Glass-Husain</a> 32 * @author <a href="mailto:pero@antaramusic.de">Peter Romianowski</a> 33 * @author <a href="mailto:jvanzyl@apache.org">Jason van Zyl</a> 34 * @author <a href="mailto:geirm@optonline.net">Geir Magnusson Jr.</a> 35 * @version $Id: ASTSubtractNode.java 691048 2008-09-01 20:26:11Z nbubna $ 36 */ 37 public class ASTSubtractNode extends ASTMathNode 38 { 39 /** 40 * @param id 41 */ 42 public ASTSubtractNode(int id) 43 { 44 super(id); 45 } 46 47 /** 48 * @param p 49 * @param id 50 */ 51 public ASTSubtractNode(Parser p, int id) 52 { 53 super(p, id); 54 } 55 56 public Number perform(Number left, Number right, InternalContextAdapter context) 57 { 58 return MathUtils.subtract(left, right); 59 } 60 } 61 62 63