Yoonseon Han | 32aae2e | 2016-10-11 16:46:04 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2016-present Open Networking Laboratory |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package org.onosproject.incubator.net.virtual.provider; |
| 18 | |
| 19 | import java.util.Set; |
| 20 | |
| 21 | /** Registry for tracking information virtual providers with the core. |
| 22 | * @param <P> type of the information virtual provider |
| 23 | * @param <S> type of the provider virtual service |
| 24 | */ |
| 25 | |
| 26 | public interface VirtualProviderRegistry<P extends VirtualProvider, |
| 27 | S extends VirtualProviderService<P>> { |
| 28 | |
| 29 | /** |
| 30 | * Registers the supplied virtual provider with the virtual core. |
| 31 | * |
| 32 | * @param provider virtual provider to be registered |
| 33 | * @return service for injecting information into core |
| 34 | * @throws java.lang.IllegalArgumentException if the provider is registered already |
| 35 | */ |
| 36 | S register(P provider); |
| 37 | |
| 38 | /** |
| 39 | * Unregisters the supplied virtual provider. |
| 40 | * As a result the previously issued virtual provider service |
| 41 | * will be invalidated and any subsequent invocations |
| 42 | * of its methods may throw {@link java.lang.IllegalStateException}. |
| 43 | * Unregistering a virtual provider that has not been previously registered |
| 44 | * result in a no-op. |
| 45 | * |
| 46 | * @param provider provider to be unregistered |
| 47 | */ |
| 48 | void unregister(P provider); |
| 49 | |
| 50 | /** |
| 51 | * Returns a set of currently registered virtual providers. |
| 52 | * |
| 53 | * @return set of virtual providers |
| 54 | */ |
| 55 | Set<P> getProviders(); |
| 56 | } |