| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.aries.containers; |
| |
| import java.util.List; |
| |
| import org.osgi.annotation.versioning.ProviderType; |
| |
| @ProviderType |
| public interface Service { |
| /** |
| * Destroy the service and all its containers. |
| */ |
| void destroy(); |
| |
| /** |
| * Obtain the current instance count. |
| * |
| * @return The instance count. |
| */ |
| int getActualInstanceCount(); |
| |
| /** |
| * Obtain the configuration that defines this service. |
| * |
| * @return The configuration for this service. |
| */ |
| ServiceConfig getConfiguration(); |
| |
| /** |
| * List the containers that are currently running the service. |
| * |
| * @return A list of containers. |
| */ |
| List<Container> listContainers(); |
| |
| /** |
| * Change the service to run the specified number of replica containers. |
| * |
| * @param count The desired number of containers. The service can temporary be |
| * suspected by using {@code 0} as the instance count. |
| */ |
| void setInstanceCount(int count); |
| |
| /** |
| * Update the internal representation of the service with the actual runtime state |
| * which can be useful if it has been changed from the outside. |
| */ |
| void refresh(); |
| } |