Jonathan Hart | f910823 | 2015-02-02 16:37:35 -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 | */ |
| 16 | package org.onosproject.store.impl; |
| 17 | |
| 18 | import com.google.common.base.MoreObjects; |
| 19 | import org.onosproject.store.Timestamp; |
| 20 | |
| 21 | import static com.google.common.base.Preconditions.checkNotNull; |
| 22 | |
| 23 | /** |
| 24 | * Describes a single remove event in an EventuallyConsistentMap. |
| 25 | */ |
| 26 | final class RemoveEntry<K> { |
| 27 | private final K key; |
| 28 | private final Timestamp timestamp; |
| 29 | |
| 30 | /** |
| 31 | * Creates a new remove entry. |
| 32 | * |
| 33 | * @param key key of the entry |
| 34 | * @param timestamp timestamp of the remove event |
| 35 | */ |
| 36 | public RemoveEntry(K key, Timestamp timestamp) { |
| 37 | this.key = checkNotNull(key); |
| 38 | this.timestamp = checkNotNull(timestamp); |
| 39 | } |
| 40 | |
| 41 | // Needed for serialization. |
| 42 | @SuppressWarnings("unused") |
| 43 | private RemoveEntry() { |
| 44 | this.key = null; |
| 45 | this.timestamp = null; |
| 46 | } |
| 47 | |
| 48 | /** |
| 49 | * Returns the key of the entry. |
| 50 | * |
| 51 | * @return the key |
| 52 | */ |
| 53 | public K key() { |
| 54 | return key; |
| 55 | } |
| 56 | |
| 57 | /** |
| 58 | * Returns the timestamp of the event. |
| 59 | * |
| 60 | * @return the timestamp |
| 61 | */ |
| 62 | public Timestamp timestamp() { |
| 63 | return timestamp; |
| 64 | } |
| 65 | |
| 66 | @Override |
| 67 | public String toString() { |
| 68 | return MoreObjects.toStringHelper(getClass()) |
| 69 | .add("key", key) |
| 70 | .add("timestamp", timestamp) |
| 71 | .toString(); |
| 72 | } |
| 73 | } |