src/java/org/apache/log4j/spi/Configurator.java

/*
 * ============================================================================
 *                   The Apache Software License, Version 1.1
 * ============================================================================
 *
 *    Copyright (C) 1999 The Apache Software Foundation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modifica-
 * tion, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of  source code must  retain the above copyright  notice,
 *    this list of conditions and the following disclaimer.
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 *    developed  by the  Apache Software Foundation  (http://www.apache.org/)."
 *    Alternately, this  acknowledgment may  appear in the software itself,  if
 *    and wherever such third-party acknowledgments normally appear.
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package org.apache.log4j.spi;

import org.apache.log4j.spi.LoggerRepository;

import java.net.URL;


/**
   Implemented by classes capable of configuring log4j using a URL.

   @since 1.0
   @author Anders Kristensen
 */
public interface Configurator {
  /**
     Special level value signifying inherited behaviour. The current
     value of this string constant is <b>inherited</b>. {@link #NULL}
     is a synonym.  */
  public static final String INHERITED = "inherited";

  /**
     Special level signifying inherited behaviour, same as {@link
     #INHERITED}. The current value of this string constant is
     <b>null</b>. */
  public static final String NULL = "null";

  /**
     Interpret a resource pointed by a URL and set up log4j accordingly.

     The configuration is done relative to the <code>hierarchy</code>
     parameter.

     @param url The URL to parse
     @param hierarchy The hierarchy to operation upon.
   */
  void doConfigure(URL url, LoggerRepository repository);
}