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/*
* Copyright (c) OSGi Alliance (2009). 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}
* method.
*
* @ThreadSafe
* @version $Revision$
*/
public interface ImportRegistration {
/**
* Answer the associated Export Reference.
*
* @return An Import Reference for this registration
* @throws IllegalStateException Thrown when this object was not properly
* initialized, see {@link #getException()}
*/
ImportReference getImportReference();
/**
* Unregister this Import Registration. This must close the connection to
* the end endpoint unregister the proxy. After this method returns, all
* other methods must return null.
*
* This method has no effect when the service is already unregistered or in
* the process off.
*/
void close();
/**
* Exception for any error during the import process.
*
* If the Remote Admin for some reasons is unable to create a registration,
* then it must return a <code>Throwable</code> from this method. In this
* case, all other methods must return on this interface must thrown an
* Illegal State Exception. If no error occurred, this method must return
* <code>null</code>.
*
* 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 creation of the
* registration or <code>null</code> if no exception occurred.
*/
Throwable getException();
}
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