configurator.java

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/*
 * Copyright (C) The Apache Software Foundation. All rights reserved.
 *
 * This software is published under the terms of the Apache Software
 * License version 1.1, a copy of which has been included with this
 * distribution in the LICENSE.txt file.  */

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