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This file is included in the "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

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The source code

 * 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.*;
import java.util.Enumeration;

   A LoggerRepository is used to create and retrieve
   Loggers. The relation between loggers in a repository
   depends on the repository but typically loggers are arranged in a
   named hierarchy.


In addition to the creational methods, a LoggerRepository can be queried for existing loggers, can act as a point of registry for events related to loggers. @author Ceki Gülcü @since 1.2 */ public interface LoggerRepository { /** Add a {@link HierarchyEventListener} event to the repository. */ public void addHierarchyEventListener(HierarchyEventListener listener); /** Is the repository disabled for a given level? The answer depends on the repository threshold and the level parameter. See also {@link #setThreshold} method. */ boolean isDisabled(int level); /** Set the repository-wide threshold. All logging requests below the threshold are immediately dropped. By default, the threshold is set to Level.ALL which has the lowest possible rank. */ public void setThreshold(Level level); /** Another form of {@link #setThreshold(Level)} accepting a string parameter instead of a Level. */ public void setThreshold(String val); public void emitNoAppenderWarning(Category cat); /** Get the repository-wide threshold. See {@link #setThreshold(Level)} for an explanation. */ public Level getThreshold(); public Logger getLogger(String name); public Logger getLogger(String name, LoggerFactory factory); public Logger getRootLogger(); public abstract Logger exists(String name); public abstract void shutdown(); public Enumeration getCurrentLoggers(); /** @deprecated Please use {@link #getCurrentLoggers} instead. */ public Enumeration getCurrentCategories(); public abstract void fireAddAppenderEvent(Category logger, Appender appender); public abstract void resetConfiguration(); }

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