| /* |
| * Copyright 2001-2004 The Apache Software Foundation. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.log4j.spi; |
| |
| import org.apache.log4j.*; |
| |
| import java.util.Enumeration; |
| |
| /** |
| * A <code>LoggerRepository</code> is used to create and retrieve |
| * <code>Loggers</code>. The relation between loggers in a repository |
| * depends on the repository but typically loggers are arranged in a |
| * named hierarchy. |
| * |
| * <p>In addition to the creational methods, a |
| * <code>LoggerRepository</code> 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. |
| * |
| * @param listener a listener |
| */ |
| public void addHierarchyEventListener(HierarchyEventListener listener); |
| |
| /** |
| * Returns whether this repository is disabled for a given |
| * level. The answer depends on the repository threshold and the |
| * <code>level</code> 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 <code>Level.ALL</code> which has the lowest possible rank. |
| */ |
| public void setThreshold(Level level); |
| |
| /** |
| * Another form of {@link #setThreshold(Level)} accepting a string |
| * parameter instead of a <code>Level</code>. |
| */ |
| 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(); |
| |
| @SuppressWarnings("rawtypes") |
| public Enumeration getCurrentLoggers(); |
| |
| /** |
| * Deprecated. Please use {@link #getCurrentLoggers} instead. |
| */ |
| @SuppressWarnings("rawtypes") |
| public Enumeration getCurrentCategories(); |
| |
| public abstract void fireAddAppenderEvent(Category logger, Appender appender); |
| |
| public abstract void resetConfiguration(); |
| |
| } |