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 package org.apache.xbean.kernel; 018 019 /** 020 * This interface defines the interface used to monitor kernel events. A KernelMonitor can be registered with the 021 * kernel using the {@link Kernel#addKernelMonitor(KernelMonitor)} method. 022 * 023 * @author Dain Sundstrom 024 * @version $Id$ 025 * @since 2.0 026 */ 027 public interface KernelMonitor { 028 /** 029 * An error occured with notifiying a service monitor. 030 * 031 * @param serviceMonitor the monitor that threw the exception 032 * @param serviceEvent the event that was being processed 033 * @param throwable the exception that was thrown 034 */ 035 void serviceNotificationError(ServiceMonitor serviceMonitor, ServiceEvent serviceEvent, Throwable throwable); 036 }