/*
* 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.cassandra.sink;
import org.apache.cassandra.db.IMutation;
public interface IRequestSink
{
/**
* Transform or drop a write request (represented by a Mutation).
*
* @param mutation the Mutation to be applied locally.
* @return null if the mutation is to be dropped, or the transformed mutation to apply, which may be just
* the original mutation.
*/
IMutation handleWriteRequest(IMutation mutation);
}