001/* 002 * HA-JDBC: High-Availability JDBC 003 * Copyright (c) 2004-2008 Paul Ferraro 004 * 005 * This library is free software; you can redistribute it and/or modify it 006 * under the terms of the GNU Lesser General Public License as published by the 007 * Free Software Foundation; either version 2.1 of the License, or (at your 008 * option) any later version. 009 * 010 * This library is distributed in the hope that it will be useful, but WITHOUT 011 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 012 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License 013 * for more details. 014 * 015 * You should have received a copy of the GNU Lesser General Public License 016 * along with this library; if not, write to the Free Software Foundation, 017 * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 018 * 019 * Contact: ferraro@users.sourceforge.net 020 */ 021package net.sf.hajdbc.util; 022 023/** 024 * Helper methods for Enums 025 * @author Paul Ferraro 026 */ 027public final class Enums 028{ 029 /** 030 * Like {@link Enum#valueOf(Class, String)}, but converts id to upper-case and swaps dashes for underscores. 031 * Used for deserializing configuration file enums. 032 * @param <T> 033 * @param targetEnum 034 * @param id 035 * @return an enum value 036 */ 037 public static <T extends Enum<T>> T valueOf(Class<T> targetEnum, String id) 038 { 039 return Enum.valueOf(targetEnum, id.toUpperCase().replace(Strings.DASH, Strings.UNDERSCORE)); 040 } 041 042 /** 043 * Like {@link Enum#name()}, but returns in lower-case, swapping underscores for dashes. 044 * Used for serializing configuration file enums. 045 * @param <T> 046 * @param value 047 * @return the id of the specified enum value 048 */ 049 public static <T extends Enum<T>> String id(T value) 050 { 051 return value.name().toLowerCase().replace(Strings.UNDERSCORE, Strings.DASH); 052 } 053 054 private Enums() 055 { 056 // Hide constructor 057 } 058}