1   /**
2    * Logback: the reliable, generic, fast and flexible logging framework.
3    * Copyright (C) 1999-2015, QOS.ch. All rights reserved.
4    *
5    * This program and the accompanying materials are dual-licensed under
6    * either the terms of the Eclipse Public License v1.0 as published by
7    * the Eclipse Foundation
8    *
9    *   or (per the licensee's choosing)
10   *
11   * under the terms of the GNU Lesser General Public License version 2.1
12   * as published by the Free Software Foundation.
13   */
14  package ch.qos.logback.core.pattern;
15  
16  import ch.qos.logback.core.Context;
17  
18  /**
19   * Implements this to perform post compile processing for a PatternLayout.
20   * 
21   * For example, PatternLayout in the classic module should add a converter for
22   * exception handling (otherwise exceptions would not be printed).
23   * 
24   * @author Ceki Gulcu
25   */
26  public interface PostCompileProcessor<E> {
27  
28      /**
29       * Post compile processing of the converter chain.
30       * 
31       * @param head The first converter in the chain
32       */
33      void process(Context context, Converter<E> head);
34  }