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1   /* 
2    * Copyright 2002-2004 The Apache Software Foundation
3    * Licensed  under the  Apache License,  Version 2.0  (the "License");
4    * you may not use  this file  except in  compliance with the License.
5    * You may obtain a copy of the License at 
6    * 
7    *   http://www.apache.org/licenses/LICENSE-2.0
8    * 
9    * Unless required by applicable law or agreed to in writing, software
10   * distributed  under the  License is distributed on an "AS IS" BASIS,
11   * WITHOUT  WARRANTIES OR CONDITIONS  OF ANY KIND, either  express  or
12   * implied.
13   * 
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.apache.struts.flow.core.source;
18  
19  /***
20   * A modifiable traversable source. This adds to {@link ModifiableSource} the
21   * ability to create a directory.
22   * 
23   * @author <a href="mailto:dev@avalon.apache.org">Avalon Development Team</a>
24   * @version CVS $Revision: 1.4 $ $Date: 2004/02/28 11:47:26 $
25   */
26  public interface ModifiableTraversableSource extends ModifiableSource, TraversableSource
27  {
28      /***
29       * If it doesn't already exist, ensure this source is traversable
30       * (equivalent to <code>File.mkdirs()</code>)
31       * <p>
32       * If the source already exists, this method does nothing if it's already
33       * traversable, and fails otherwise.
34       */
35      public void makeCollection() throws SourceException;
36  
37  }
38  
39