001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *     http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.commons.el;
018
019import java.math.BigDecimal;
020import java.math.BigInteger;
021
022/**
023 *
024 * <p>The implementation of the multiply operator
025 * 
026 * @author Nathan Abramson - Art Technology Group
027 * @version $Change: 181177 $$DateTime: 2001/06/26 08:45:09 $$Author: bayard $
028 **/
029
030public class MultiplyOperator
031  extends ArithmeticOperator
032{
033  //-------------------------------------
034  // Singleton
035  //-------------------------------------
036
037  public static final MultiplyOperator SINGLETON =
038    new MultiplyOperator ();
039
040  //-------------------------------------
041  /**
042   *
043   * Constructor
044   **/
045  public MultiplyOperator ()
046  {
047  }
048
049  //-------------------------------------
050  // Expression methods
051  //-------------------------------------
052  /**
053   *
054   * Returns the symbol representing the operator
055   **/
056  public String getOperatorSymbol ()
057  {
058    return "*";
059  }
060
061  //-------------------------------------
062  /**
063   *
064   * Applies the operator to the given double values, returning a double
065   **/
066  public double apply (double pLeft,
067                       double pRight
068                       )
069  {
070    return pLeft * pRight;
071  }
072  
073  //-------------------------------------
074  /**
075   *
076   * Applies the operator to the given double values, returning a double
077   **/
078  public long apply (long pLeft,
079                     long pRight
080                     )
081  {
082    return pLeft * pRight;
083  }
084  
085  //-------------------------------------
086
087    /**
088     *
089     * Applies the operator to the given BigDecimal values, returning a BigDecimal.
090     **/
091    public BigDecimal apply(BigDecimal pLeft,
092                            BigDecimal pRight
093                            ) {
094        return pLeft.multiply(pRight);
095    }
096
097    //-------------------------------------
098
099    /**
100     *
101     * Applies the operator to the given BigInteger values, returning a BigInteger.
102     **/
103    public BigInteger apply(BigInteger pLeft,
104                            BigInteger pRight
105                            ) {
106        return pLeft.multiply(pRight);
107    }
108
109    //-------------------------------------
110}