https://github.com/datastax/java-driver/java-driver-core: A driver for Apache Cassandra(R) 2.1+ that works exclusively with the Cassandra Query Language version 3 (CQL3) and Cassandra's native protocol versions 3 and above.
  • Various (DataStax) 
/*
 * Copyright DataStax, Inc.
 *
 * 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 com.datastax.oss.driver.internal.core.channel;

import com.datastax.oss.driver.api.core.context.DriverContext;
import io.netty.channel.Channel;
import io.netty.channel.ChannelFuture;
import net.jcip.annotations.ThreadSafe;


No-op implementation of the write coalescer: each write is flushed immediately. 
/** No-op implementation of the write coalescer: each write is flushed immediately. */
@ThreadSafe
public class PassThroughWriteCoalescer implements WriteCoalescer {

  public PassThroughWriteCoalescer(@SuppressWarnings("unused") DriverContext context) {
    // nothing to do
  }

  @Override
  public ChannelFuture writeAndFlush(Channel channel, Object message) {
    return channel.writeAndFlush(message);
  }
}