/* * The MIT License * Copyright © 2014-2019 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.stepbuilder; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * Step Builder Pattern * *
Intent
* An extension of the Builder pattern that fully guides the user through the creation of the object
* with no chances of confusion.
The user experience will be much more improved by the fact
* that he will only see the next step methods available, NO build method until is the right time to
* build the object.
*
*
Implementation
* The concept is simple:
*
Applicability
* Use the Step Builder pattern when the algorithm for creating a complex object should be
* independent of the parts that make up the object and how they're assembled the construction
* process must allow different representations for the object that's constructed when in the
* process of constructing the order is important.
*
*
* @see http://rdafbn.blogspot.co.uk/2012/07/step-builder-pattern_28.html
*/
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) {
var warrior = CharacterStepBuilder
.newBuilder()
.name("Amberjill")
.fighterClass("Paladin")
.withWeapon("Sword")
.noAbilities()
.build();
LOGGER.info(warrior.toString());
var mage = CharacterStepBuilder
.newBuilder()
.name("Riobard")
.wizardClass("Sorcerer")
.withSpell("Fireball")
.withAbility("Fire Aura")
.withAbility("Teleport")
.noMoreAbilities()
.build();
LOGGER.info(mage.toString());
var thief = CharacterStepBuilder
.newBuilder()
.name("Desmond")
.fighterClass("Rogue")
.noWeapon()
.build();
LOGGER.info(thief.toString());
}
}