Thomas Vachuska | 1827562 | 2015-07-22 22:28:25 -0700 | [diff] [blame] | 1 | /* |
Brian O'Connor | a09fe5b | 2017-08-03 21:12:30 -0700 | [diff] [blame] | 2 | * Copyright 2015-present Open Networking Foundation |
Thomas Vachuska | 1827562 | 2015-07-22 22:28:25 -0700 | [diff] [blame] | 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.event; |
| 17 | |
| 18 | /** |
| 19 | * Entity capable of filtering events. |
| 20 | */ |
| 21 | public interface EventFilter<E extends Event> { |
| 22 | |
| 23 | /** |
| 24 | * Indicates whether the specified event is of interest or not. |
| 25 | * Default implementation always returns true. |
| 26 | * |
| 27 | * @param event event to be inspected |
| 28 | * @return true if event is relevant; false otherwise |
| 29 | */ |
| 30 | default boolean isRelevant(E event) { |
| 31 | return true; |
| 32 | } |
| 33 | |
| 34 | } |