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1   /* Copyright (2005-2007) Schibsted Søk AS
2    * This file is part of Sesat Commons.
3    *
4    *   Sesat Commons is free software: you can redistribute it and/or modify
5    *   it under the terms of the GNU Lesser General Public License as published by
6    *   the Free Software Foundation, either version 3 of the License, or
7    *   (at your option) any later version.
8    *
9    *   Sesat Commons is distributed in the hope that it will be useful,
10   *   but WITHOUT ANY WARRANTY; without even the implied warranty of
11   *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12   *   GNU Lesser General Public License for more details.
13   *
14   *   You should have received a copy of the GNU Lesser General Public License
15   *   along with Sesat Commons.  If not, see <http://www.gnu.org/licenses/>.
16   * Visitable.java
17   *
18   * Created on 7 January 2006, 16:04
19   *
20   */
21  
22  package no.sesat.commons.visitor;
23  
24  import java.io.Serializable;
25  
26  /** Interface for Classes that will implement the Visitor pattern.
27   * See complimentary Visitor interface.
28   *
29   * @version $Id: Visitable.java 1128 2009-01-21 16:25:47Z ssmiweve $
30   *
31   */
32  public interface Visitable extends Serializable {
33  
34      /** Method to accept a visitor.
35       * This method usually doesn't do more than
36       * <code>visitor.visit(this);</code>
37       *
38       * @param visitor the visitor knocking on the door.
39       */
40      void accept(Visitor visitor);
41  }