| /* |
| * Copyright 2015-present Open Networking Foundation |
| * |
| * 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.onosproject.net.flowobjective; |
| |
| import com.google.common.annotations.Beta; |
| |
| import java.util.Map; |
| |
| import org.onosproject.net.behaviour.NextGroup; |
| import org.onosproject.store.Store; |
| |
| /** |
| * The flow objective store. |
| */ |
| @Beta |
| public interface FlowObjectiveStore |
| extends Store<ObjectiveEvent, FlowObjectiveStoreDelegate> { |
| |
| /** |
| * Adds a NextGroup to the store, by mapping it to the nextId as key, |
| * and replacing any previous mapping. |
| * |
| * @param nextId an integer |
| * @param group a next group opaque object |
| */ |
| void putNextGroup(Integer nextId, NextGroup group); |
| |
| /** |
| * Fetch a next group from the store. |
| * |
| * @param nextId an integer used as key |
| * @return a next group, or null if group was not found |
| */ |
| NextGroup getNextGroup(Integer nextId); |
| |
| /** |
| * Remove a next group mapping from the store. |
| * |
| * @param nextId the key to remove from the store. |
| * @return the next group which mapped to the nextId and is now removed, or |
| * null if no group mapping existed in the store |
| */ |
| NextGroup removeNextGroup(Integer nextId); |
| |
| /** |
| * Fetch all groups from the store and their mapping to nextIds. |
| * |
| * @return a map that represents the current snapshot of Next-ids to NextGroups |
| */ |
| Map<Integer, NextGroup> getAllGroups(); |
| |
| /** |
| * Allocates a next objective id. This id is globally unique |
| * |
| * @return an integer |
| */ |
| int allocateNextId(); |
| } |