2 * Copyright 2015-present Open Networking Foundation
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
16 package io.atomix.utils.event;
19 * Basis for components which need to export listener mechanism.
21 public abstract class AbstractListenerManager<E extends Event, L extends EventListener<E>> implements ListenerService<E, L> {
23 protected final ListenerRegistry<E, L> listenerRegistry = new ListenerRegistry<>();
26 public void addListener(L listener) {
27 listenerRegistry.addListener(listener);
31 public void removeListener(L listener) {
32 listenerRegistry.removeListener(listener);
36 * Posts the specified event to the local event dispatcher.
38 * @param event event to be posted; may be null
40 protected void post(E event) {
41 listenerRegistry.process(event);