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/*
 * Copyright 2017-2020 original authors
 *
 * 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 io.micronaut.context.event;

import edu.umd.cs.findbugs.annotations.NonNull;

/**
 * Interface for classes that publish events received by {@link ApplicationEventListener} instances.
 * 
 * 
Note that this interface is designed for application level, non-blocking synchronous events for decoupling code
 * and is not a replacement for a messaging system
 *
 * @author Graeme Rocher
 * @since 1.0
 */
public interface ApplicationEventPublisher {

    /**
     * Publish the given event. The event will be published synchronously and only return once all listeners have consumed the event.
     *
     * @param event The event to publish
     */
    void publishEvent(@NonNull Object event);
}