TimestampedHiveDatasetVersion.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 gobblin.data.management.version;

import lombok.EqualsAndHashCode;

import org.apache.hadoop.hive.ql.metadata.Partition;
import org.joda.time.DateTime;

/**
 * A {@link HiveDatasetVersion} where the version is a timestamp associated with the {@link Partition}. Usually this
 * is the create time or modification time.
 */
public class TimestampedHiveDatasetVersion extends TimestampedDatasetVersion implements HiveDatasetVersion {

  private final Partition partition;

  public TimestampedHiveDatasetVersion(DateTime version, Partition partition) {
    super(version, partition.getDataLocation());
    this.partition = partition;
  }

  @Override
  public Partition getPartition() {
    return this.partition;
  }

  @Override
  public boolean equals(Object obj) {
    return super.equals(obj) && obj instanceof TimestampedHiveDatasetVersion && compareTo((TimestampedHiveDatasetVersion) obj) == 0;
  }

  @Override
  public int hashCode() {
    return this.partition.hashCode() + super.hashCode();
  }
}