| /** |
| * |
| * Copyright 2005-2006 The Apache Software Foundation or its licensors, as applicable. |
| * |
| * 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.xbean.kernel; |
| |
| /** |
| * This interface is used to monitor service lifecycle events. A ServiceMonitor can be registered with a kernel using |
| * {@link Kernel#addServiceMonitor(ServiceMonitor)} or {@link Kernel#addServiceMonitor(ServiceMonitor, ServiceName)}. |
| * |
| * @author Dain Sundstrom |
| * @version $Id$ |
| * @since 2.0 |
| */ |
| public interface ServiceMonitor { |
| /** |
| * A new service has been registered with the kernel. |
| * |
| * @param serviceEvent the event information |
| */ |
| void serviceRegistered(ServiceEvent serviceEvent); |
| |
| /** |
| * A service has entered the STARTING state. |
| * |
| * @param serviceEvent the event information |
| */ |
| void serviceStarting(ServiceEvent serviceEvent); |
| |
| /** |
| * A service is waiting to start because some start conditions are unsatified. |
| * |
| * @param serviceEvent the event information |
| * @see ServiceEvent#getUnsatisfiedConditions() |
| */ |
| void serviceWaitingToStart(ServiceEvent serviceEvent); |
| |
| /** |
| * An error occured while calling creating the service. |
| * |
| * @param serviceEvent the event information |
| * @see ServiceEvent#getCause() |
| */ |
| void serviceStartError(ServiceEvent serviceEvent); |
| |
| /** |
| * A service has entered the RUNNING state. |
| * |
| * @param serviceEvent the event information |
| */ |
| void serviceRunning(ServiceEvent serviceEvent); |
| |
| /** |
| * A service has entered the RUNNING state. |
| * |
| * @param serviceEvent the event information |
| */ |
| void serviceStopping(ServiceEvent serviceEvent); |
| |
| /** |
| * A service is waiting to stop because some stop condition is unsatified. |
| * |
| * @param serviceEvent the event information |
| * @see ServiceEvent#getUnsatisfiedConditions() |
| */ |
| void serviceWaitingToStop(ServiceEvent serviceEvent); |
| |
| /** |
| * An error occured while calling destroying the service. |
| * |
| * @param serviceEvent the event information |
| * @see ServiceEvent#getCause() |
| */ |
| void serviceStopError(ServiceEvent serviceEvent); |
| |
| /** |
| * A service has entered the STOPPED state. |
| * |
| * @param serviceEvent the event information |
| */ |
| void serviceStopped(ServiceEvent serviceEvent); |
| |
| /** |
| * A service has been unregistered from the kernel. |
| * |
| * @param serviceEvent the event information |
| */ |
| void serviceUnregistered(ServiceEvent serviceEvent); |
| } |