/* * Copyright (C) 2009 eXo Platform SAS. * * This is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * This software 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this software; if not, write to the Free * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA * 02110-1301 USA, or see the FSF site: http://www.fsf.org. */ package org.exoplatform.commons.serialization.api; /** * A type converter that performs a bidirectional conversion between an external type and an internal type. The converter only * assure conversion of non null values. * * @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a> * @version $Revision$ * @param <E> the type parameter of the external type * @param <I> the type parameter of the internal type */ public abstract class TypeConverter<E, I> { /** * Converts an external value to an internal value. * * @param external the external value * @return the the internal value * @throws Exception any conversion exception */ public abstract I write(E external) throws Exception; /** * Converts an internal value to an external value. * * @param internal the internal value * @return the external value * @throws Exception any conversion exception */ public abstract E read(I internal) throws Exception; }