org.apache.hudi.common.model.OverwriteWithLatestMerger Maven / Gradle / Ivy

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/*
 * 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.hudi.common.model;

import org.apache.hudi.common.config.TypedProperties;
import org.apache.hudi.common.util.Option;
import org.apache.hudi.common.util.collection.Pair;

import org.apache.avro.Schema;

import java.io.IOException;

/**
 * Avro Merger that always chooses the newer record
 */
public class OverwriteWithLatestMerger implements HoodieRecordMerger {

  @Override
  public Option> merge(HoodieRecord older, Schema oldSchema, HoodieRecord newer, Schema newSchema, TypedProperties props) throws IOException {
    return Option.of(Pair.of(newer, newSchema));
  }

  @Override
  public HoodieRecord.HoodieRecordType getRecordType() {
    return HoodieRecord.HoodieRecordType.AVRO;
  }

  @Override
  public String getMergingStrategy() {
    return OVERWRITE_MERGER_STRATEGY_UUID;
  }
}