/*
* Copyright (c) 2010-2014. Axon Framework
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.axonframework.eventhandling;
import org.axonframework.eventsourcing.DomainEventMessage;
/**
* Interface to be implemented by classes that can handle events.
*
* @author Allard Buijze
* @see EventBus
* @see DomainEventMessage
* @see EventHandler
* @since 0.1
*/
@FunctionalInterface
public interface EventListener {
/**
* Process the given event. The implementation may decide to process or skip the given event. It is highly
* unrecommended to throw any exception during the event handling process.
*
* @param event the event to handle
* @throws Exception when an exception is raised during event handling
*/
void handle(EventMessage<?> event) throws Exception;
}