: Collection Pipeline pattern

This commit is contained in:
nikhilbarar
2018-07-02 00:42:04 +05:30
parent 987994f0fe
commit 2c8d1744df
11 changed files with 490 additions and 0 deletions

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/**
* The MIT License
* Copyright (c) 2014 Ilkka Seppälä
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package com.iluwatar.collectionpipeline;
import java.util.List;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* In imperative-style programming, it is common to use for and while loops for
* most kinds of data processing. Function composition is a simple technique
* that lets you sequence modular functions to create more complex operations.
* When you run data through the sequence, you have a collection pipeline.
* Together, the Function Composition and Collection Pipeline patterns enable
* you to create sophisticated programs where data flow from upstream to
* downstream and is passed through a series of transformations.
*
*/
public class App {
private static final Logger LOGGER = LoggerFactory.getLogger(App.class);
/**
* Program entry point.
*
* @param args
* command line args
*/
public static void main(String[] args) {
List<Car> cars = Iterating.createCars();
List<String> modelsImperative = ImperativeProgramming.getModelsAfter2000UsingFor(cars);
LOGGER.info(modelsImperative.toString());
List<String> modelsFunctional = FunctionalProgramming.getModelsAfter2000UsingPipeline(cars);
LOGGER.info(modelsFunctional.toString());
}
}