Jonathan Hart | db3af89 | 2015-01-26 13:19:07 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 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 | */ |
Jonathan Hart | 6ec029a | 2015-03-24 17:12:35 -0700 | [diff] [blame] | 16 | package org.onosproject.store.service; |
Jonathan Hart | db3af89 | 2015-01-26 13:19:07 -0800 | [diff] [blame] | 17 | |
| 18 | import org.onosproject.store.Timestamp; |
| 19 | |
| 20 | /** |
Jonathan Hart | 5ec32ba | 2015-02-05 13:33:58 -0800 | [diff] [blame] | 21 | * Clock service that can generate timestamps based off of two input objects. |
| 22 | * Implementations are free to only take one or none of the objects into account |
| 23 | * when generating timestamps. |
Jonathan Hart | db3af89 | 2015-01-26 13:19:07 -0800 | [diff] [blame] | 24 | */ |
Jonathan Hart | 5ec32ba | 2015-02-05 13:33:58 -0800 | [diff] [blame] | 25 | public interface ClockService<T, U> { |
Jonathan Hart | db3af89 | 2015-01-26 13:19:07 -0800 | [diff] [blame] | 26 | |
| 27 | /** |
Jonathan Hart | 5ec32ba | 2015-02-05 13:33:58 -0800 | [diff] [blame] | 28 | * Gets a new timestamp for the given objects. |
Jonathan Hart | db3af89 | 2015-01-26 13:19:07 -0800 | [diff] [blame] | 29 | * |
Jonathan Hart | 5ec32ba | 2015-02-05 13:33:58 -0800 | [diff] [blame] | 30 | * @param object1 First object to use when generating timestamps |
| 31 | * @param object2 Second object to use when generating timestamps |
Jonathan Hart | db3af89 | 2015-01-26 13:19:07 -0800 | [diff] [blame] | 32 | * @return the new timestamp |
| 33 | */ |
Sho SHIMIZU | 3310a34 | 2015-05-13 12:14:05 -0700 | [diff] [blame] | 34 | Timestamp getTimestamp(T object1, U object2); |
Jonathan Hart | db3af89 | 2015-01-26 13:19:07 -0800 | [diff] [blame] | 35 | } |