001 /* 002 * Copyright (C) 2010 eXo Platform SAS. 003 * 004 * This is free software; you can redistribute it and/or modify it 005 * under the terms of the GNU Lesser General Public License as 006 * published by the Free Software Foundation; either version 2.1 of 007 * the License, or (at your option) any later version. 008 * 009 * This software is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * You should have received a copy of the GNU Lesser General Public 015 * License along with this software; if not, write to the Free 016 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 017 * 02110-1301 USA, or see the FSF site: http://www.fsf.org. 018 */ 019 020 package org.crsh.vfs.spi; 021 022 import java.io.IOException; 023 import java.net.URL; 024 025 /** 026 * A driver. 027 * 028 * @author <a href="mailto:julien.viet@exoplatform.com">Julien Viet</a> 029 * @version $Revision$ 030 * @param <H> the handle generic type 031 */ 032 public interface FSDriver<H> { 033 034 /** 035 * Returns the root handle. 036 * 037 * @return the root handle 038 * @throws IOException any io exception 039 */ 040 H root() throws IOException; 041 042 String name(H handle) throws IOException; 043 044 boolean isDir(H handle) throws IOException; 045 046 H child(H handle, String name) throws IOException; 047 048 Iterable<H> children(H handle) throws IOException; 049 050 URL toURL(H handle) throws IOException; 051 052 }