FileIterator


1   /*
2    * Distributed as part of debuggen v.0.1.0
3    *
4    * Copyright (C) 2005 Machinery For Change, Inc.
5    *
6    * Author: Steve Waldman <swaldman@mchange.com>
7    *
8    * This library is free software; you can redistribute it and/or modify
9    * it under the terms of the GNU Lesser General Public License version 2.1, as 
10   * published by the Free Software Foundation.
11   *
12   * This software is distributed in the hope that it will be useful,
13   * but WITHOUT ANY WARRANTY; without even the implied warranty of
14   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15   * GNU Lesser General Public License for more details.
16   *
17   * You should have received a copy of the GNU Lesser General Public License
18   * along with this software; see the file LICENSE.  If not, write to the
19   * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
20   * Boston, MA 02111-1307, USA.
21   */
22  
23  
24  package com.mchange.v2.io;
25  
26  import java.io.File  ;
27  import java.io.IOException  ;
28  import java.util.NoSuchElementException  ;
29  import com.mchange.v1.util.UIterator;
30  
31  public interface FileIterator extends UIterator
32  {
33      public File   nextFile() throws IOException  ;
34  
35      public boolean hasNext() throws IOException  ;
36      public Object   next() throws IOException  ;
37      public void remove() throws IOException  ;
38      public void close() throws IOException  ;
39  
40      public final static FileIterator EMPTY_FILE_ITERATOR = new FileIterator()
41      {
42      public File   nextFile() {throw new NoSuchElementException  ();}
43      public boolean hasNext() {return false;}
44      public Object   next() {throw new NoSuchElementException  ();}
45      public void remove() {throw new IllegalStateException  ();}
46      public void close() {}
47      };
48  }
49
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