| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package com.datatorrent.lib.math; |
| |
| import com.datatorrent.api.annotation.Stateless; |
| |
| /** |
| * Emits the result as square of the input tuple which is a number. |
| * <p> |
| * Emits the result as Long on port longResult, as Integer on port integerResult, |
| * as Double on port doubleResult, and as Float on port floatResult. |
| * This is a pass through operator |
| * <br> |
| * <b>Ports</b>:<br> |
| * <b>input</b>: expects Number<br> |
| * <b>longResult</b>: emits Long<br> |
| * <b>integerResult</b>: emits Integer<br> |
| * <b>doubleResult</b>: emits Double<br> |
| * <b>floatResult</b>: emits Float<br> |
| * <br> |
| * @displayName Square Calculus |
| * @category Math |
| * @tags numeric, square, multiplication |
| * @since 0.3.3 |
| */ |
| @Stateless |
| public class SquareCalculus extends SingleVariableAbstractCalculus |
| { |
| @Override |
| public double function(double dval) |
| { |
| return dval * dval; |
| } |
| |
| @Override |
| public long function(long lval) |
| { |
| return lval * lval; |
| } |
| |
| } |