001 /* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache license, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the license for the specific language governing permissions and 015 * limitations under the license. 016 */ 017 018 package org.apache.logging.log4j.core; 019 020 /** 021 * 022 */ 023 public interface LifeCycle { 024 025 /** 026 * Status of a life cycle like a {@link LoggerContext}.. 027 */ 028 public enum State { 029 /** Initialized but not yet started. */ 030 INITIALIZED, 031 /** In the process of starting. */ 032 STARTING, 033 /** Has started. */ 034 STARTED, 035 /** Stopping is in progress. */ 036 STOPPING, 037 /** Has stopped. */ 038 STOPPED 039 } 040 041 void start(); 042 043 void stop(); 044 045 boolean isStarted(); 046 047 boolean isStopped(); 048 }