kafka/src/main/java/org/apache/metamodel/kafka/ConsumerAndProducerFactory.java

/**
 * 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.metamodel.kafka;

import org.apache.kafka.clients.consumer.Consumer;
import org.apache.kafka.clients.producer.Producer;

/**
 * Factory interface for Kafka {@link Consumer} and {@link Producer} objects to
 * be used by Apache MetaModel. Since Apache MetaModel may potentially serve
 * multiple queries at the same times, multiple consumers may be needed. This
 * class determines how these are instantiated.
 */
public interface ConsumerAndProducerFactory {

    public <K, V> Consumer<K, V> createConsumer(String topic, Class<K> keyClass, Class<V> valueClass);

    public <K, V> Producer<K, V> createProducer(Class<K> keyClass, Class<V> valueClass);
}