/*license*\ XBN-Java: Copyright (C) 2014, Jeff Epstein (aliteralmind __DASH__ github __AT__ yahoo __DOT__ com) This software is dual-licensed under the: - Lesser General Public License (LGPL) version 3.0 or, at your option, any later version; - Apache Software License (ASL) version 2.0. Either license may be applied at your discretion. More information may be found at - http://en.wikipedia.org/wiki/Multi-licensing. The text of both licenses is available in the root directory of this project, under the names "LICENSE_lgpl-3.0.txt" and "LICENSE_asl-2.0.txt". The latest copies may be downloaded at: - LGPL 3.0: https://www.gnu.org/licenses/lgpl-3.0.txt - ASL 2.0: http://www.apache.org/licenses/LICENSE-2.0.txt \*license*/ package com.github.xbn.examples.lang.builder.finalv; import java.util.regex.Pattern; /** <p>Information about a user -- <i>[builder: UserConfig_Cfg]</i></p> <p>Validation of all fields occurs in this classes constructor. However, each validation requirement is document only in the builder's setter functions.</p> <p>{@code java com.github.xbn.examples.lang.builder.finalv.UserConfig}</p> * @since 0.1.0 * @author Copyright (C) 2014, Jeff Epstein ({@code aliteralmind __DASH__ github __AT__ yahoo __DOT__ com}), dual-licensed under the LGPL (version 3.0 or later) or the ASL (version 2.0). See source code for details. <a href="http://xbnjava.aliteralmind.com">{@code http://xbnjava.aliteralmind.com}</a>, <a href="https://github.com/aliteralmind/xbnjava">{@code https://github.com/aliteralmind/xbnjava}</a> **/ public class UserConfig { private final String sName ; private final int iAge ; private final String sFavColor; /** <p>Create a new instance. This sets and validates all fields.</p> @param fieldable May not be {@code null}. **/ public UserConfig(UserConfig_Fieldable fieldable) { //transfer try { sName = fieldable.getName(); } catch(NullPointerException rx) { throw new NullPointerException("fieldable"); } iAge = fieldable.getAge(); sFavColor = fieldable.getFavoriteColor(); //validate try { if(!Pattern.compile("\\w+").matcher(sName).matches()) { throw new IllegalArgumentException("fieldable.getName() (\"" + sName + "\") may not be empty, and must contain only letters digits and underscores."); } } catch(NullPointerException rx) { throw new NullPointerException("fieldable.getName()"); } if(iAge < 0) { throw new IllegalArgumentException("fieldable.getAge() (" + iAge + ") is less than zero."); } try { if(!Pattern.compile("(?:red|blue|green|hot pink)").matcher(sFavColor).matches()) { throw new IllegalArgumentException("fieldable.getFavoriteColor() (\"" + fieldable.getFavoriteColor() + "\") is not red, blue, green, or hot pink."); } } catch(NullPointerException rx) { throw new NullPointerException("fieldable.getFavoriteColor()"); } } //getters...START /** <p>The user's name.</p> * @return A non-{@code null}, non-empty string. * @see UserConfig_Cfg#UserConfig_Cfg(String) * @see #getAge() * @see #getFavoriteColor() */ public String getName() { return sName; } /** <p>The user's age.</p> * @return A number greater-than-or-equal-to zero. * @see UserConfig_Cfg#age(int) * @see #getName() */ public int getAge() { return iAge; } /** <p>The user's favorite color.</p> * @return A non-{@code null}, non-empty string. * @see UserConfig_Cfg#age(int) * @see #getName() */ public String getFavoriteColor() { return sFavColor; } //getters...END public String toString() { return "getName()=" + getName() + ", getAge()=" + getAge() + ", getFavoriteColor()=" + getFavoriteColor(); } }