org.apache.kafka.clients.consumer.internals.events.ApplicationEvent Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.kafka.clients.consumer.internals.events;
/**
* This is the abstract definition of the events created by the KafkaConsumer API
*/
abstract public class ApplicationEvent {
public final Type type;
protected ApplicationEvent(Type type) {
this.type = type;
}
/**
* process the application event. Return true upon successful execution,
* false otherwise.
* @return true if the event was successfully executed; false otherwise.
*/
@Override
public String toString() {
return type + " ApplicationEvent";
}
public enum Type {
NOOP, COMMIT, POLL, FETCH_COMMITTED_OFFSET, METADATA_UPDATE, ASSIGNMENT_CHANGE,
}
}