| /* |
| * Copyright (c) OSGi Alliance (2009, 2010). All Rights Reserved. |
| * |
| * 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.osgi.service.remoteserviceadmin; |
| |
| /** |
| * An Import Registration associates an active proxy service to a remote |
| * endpoint. |
| * |
| * The Import Registration can be used to delete the proxy associated with an |
| * endpoint. It is created with the |
| * {@link RemoteServiceAdmin#importService(EndpointDescription)} method. |
| * |
| * When this Import Registration has been closed, all methods must return |
| * {@code null}. |
| * |
| * @ThreadSafe |
| * @noimplement |
| * @version $Id: e8a83aa65f535311cde90a8e7e1667540f887440 $ |
| */ |
| public interface ImportRegistration { |
| /** |
| * Return the Import Reference for the imported service. |
| * |
| * @return The Import Reference for this registration. |
| * @throws IllegalStateException When this registration was not properly |
| * initialized. See {@link #getException()}. |
| */ |
| ImportReference getImportReference(); |
| |
| /** |
| * Close this Import Registration. This must close the connection to the |
| * endpoint and unregister the proxy. After this method returns, all other |
| * methods must return {@code null}. |
| * |
| * This method has no effect when this registration has already been closed |
| * or is being closed. |
| */ |
| void close(); |
| |
| /** |
| * Return the exception for any error during the import process. |
| * |
| * If the Remote Service Admin for some reasons is unable to properly |
| * initialize this registration, then it must return an exception from this |
| * method. If no error occurred, this method must return {@code null}. |
| * |
| * The error must be set before this Import Registration is returned. |
| * Asynchronously occurring errors must be reported to the log. |
| * |
| * @return The exception that occurred during the initialization of this |
| * registration or {@code null} if no exception occurred. |
| */ |
| Throwable getException(); |
| } |