2 * ============LICENSE_START=======================================================
3 * Copyright (C) 2016-2018 Ericsson. All rights reserved.
4 * ================================================================================
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 * SPDX-License-Identifier: Apache-2.0
18 * ============LICENSE_END=========================================================
21 package org.onap.policy.apex.service.engine.runtime;
23 import org.onap.policy.apex.service.engine.event.ApexEvent;
26 * The listener interface for receiving apexEvent events. The class that is interested in processing
27 * a apexEvent event implements this interface, and the object created with that class is registered
28 * with a component using the component's {@code addApexEventListener} method. When the apexEvent
29 * event occurs, that object's appropriate method is invoked.
31 * @author Sajeevan Achuthan (sajeevan.achuthan@ericsson.com)
33 public interface ApexEventListener {
36 * Callback method called on implementations of this interface when APEX emits an event.
38 * @param apexEvent the apex event emitted by APEX
40 void onApexEvent(ApexEvent apexEvent);