Java tutorial
/** * AlphaMale for web Copyright (C) 2016 NHN Technology Services This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ package com.nts.alphamale.type; import org.apache.commons.lang3.StringUtils; /*** * * (drag, swipe , orientation change? ) * */ public enum DirectionType { NATURAL("natural"), LEFT("left"), RIGHT("right"), UP("up"), DOWN("down"); private final String value; DirectionType(String value) { this.value = value; } @Override public String toString() { return value; } public static DirectionType matchOf(String value) { if (StringUtils.isEmpty(value)) { return DirectionType.NATURAL; } for (DirectionType v : values()) { if (v.toString().equalsIgnoreCase(value)) { return v; } } throw new IllegalArgumentException(); } }