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1   /***************************************************************************************
2    * Copyright (c) Jonas Bonér, Alexandre Vasseur. All rights reserved.                 *
3    * http://aspectwerkz.codehaus.org                                                    *
4    * ---------------------------------------------------------------------------------- *
5    * The software in this package is published under the terms of the LGPL license      *
6    * a copy of which has been included with this distribution in the license.txt file.  *
7    **************************************************************************************/
8   package org.codehaus.aspectwerkz.hook;
9   
10  import java.util.Hashtable;
11  
12  /***
13   * Implement to be a class PreProcessor in the AspectWerkz univeral loading architecture. <p/>A single instance of the
14   * class implementing this interface is build during the java.lang.ClassLoader initialization or just before the first
15   * class loads, bootclasspath excepted. Thus there is a single instance the of ClassPreProcessor per JVM. <br/>Use the
16   * <code>-Daspectwerkz.classloader.preprocessor</code> option to specify which class preprocessor to use.
17   * 
18   * @author <a href="mailto:alex@gnilux.com">Alexandre Vasseur </a>
19   * @see org.codehaus.aspectwerkz.hook.ProcessStarter
20   */
21  public interface ClassPreProcessor {
22      public abstract void initialize(Hashtable hashtable);
23  
24      public abstract byte[] preProcess(String klass, byte[] abyte, ClassLoader caller);
25  }