001/* 002 * Copyright (c) 2017 Chris K Wensel <chris@wensel.net>. All Rights Reserved. 003 * 004 * Project and contact information: http://www.cascading.org/ 005 * 006 * This file is part of the Cascading project. 007 * 008 * Licensed under the Apache License, Version 2.0 (the "License"); 009 * you may not use this file except in compliance with the License. 010 * You may obtain a copy of the License at 011 * 012 * http://www.apache.org/licenses/LICENSE-2.0 013 * 014 * Unless required by applicable law or agreed to in writing, software 015 * distributed under the License is distributed on an "AS IS" BASIS, 016 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 017 * See the License for the specific language governing permissions and 018 * limitations under the License. 019 */ 020 021package cascading.local.tap.kafka; 022 023import java.util.Iterator; 024import java.util.Properties; 025 026import cascading.scheme.Scheme; 027import cascading.tuple.Fields; 028import org.apache.kafka.clients.consumer.ConsumerRecord; 029import org.apache.kafka.clients.producer.Producer; 030 031/** 032 * Class KafkaScheme is the base class used for all Schemes that are to be used with the {@link KafkaTap}. 033 */ 034public abstract class KafkaScheme<K, V, SourceContext, SinkContext> extends Scheme<Properties, Iterator<ConsumerRecord<K, V>>, Producer<K, V>, SourceContext, SinkContext> 035 { 036 public KafkaScheme( Fields sourceFields ) 037 { 038 super( sourceFields ); 039 } 040 041 public KafkaScheme( Fields sourceFields, Fields sinkFields ) 042 { 043 super( sourceFields, sinkFields ); 044 } 045 }