/* * 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.utils; import java.io.Serializable; /** * @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a> * @version $Revision$ */ public class EmptySerializablePageList<E> extends AbstractSerializablePageList<E> implements Serializable { /** . */ private static final EmptySerializablePageList instance = new EmptySerializablePageList(); /** . */ private final transient ListAccess<E> listAccess = new ListAccess<E>() { public E[] load(int index, int length) throws Exception { throw new UnsupportedOperationException("Should not be called"); } public int getSize() throws Exception { return 0; } }; public EmptySerializablePageList() { super(10); } @Override protected ListAccess<E> connect() throws Exception { return listAccess; } public static <E> PageList<E> get() { // Cast OK return (PageList<E>) instance; } private Object readResolve() { return instance; } }