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A module that is everything required to understands Druid Segments

There is a newer version: 30.0.1

/*
 * 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.druid.data.input.impl;

import com.fasterxml.jackson.annotation.JsonProperty;

import java.util.Objects;

public abstract class NestedDataParseSpec extends ParseSpec
{
  private final TFlattenSpec flattenSpec;

  protected NestedDataParseSpec(
      @JsonProperty("timestampSpec") TimestampSpec timestampSpec,
      @JsonProperty("dimensionsSpec") DimensionsSpec dimensionsSpec,
      @JsonProperty("flattenSpec") TFlattenSpec flattenSpec
  )
  {
    super(timestampSpec, dimensionsSpec);
    this.flattenSpec = flattenSpec;
  }

  @JsonProperty
  public TFlattenSpec getFlattenSpec()
  {
    return flattenSpec;
  }

  @Override
  public boolean equals(Object o)
  {
    if (this == o) {
      return true;
    }
    if (o == null || getClass() != o.getClass()) {
      return false;
    }
    if (!super.equals(o)) {
      return false;
    }
    NestedDataParseSpec that = (NestedDataParseSpec) o;
    return Objects.equals(flattenSpec, that.flattenSpec);
  }

  @Override
  public int hashCode()
  {
    return Objects.hash(super.hashCode(), flattenSpec);
  }
}