code: /*
   * 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.skywalking.oap.server.core.storage.model;
  
  import lombok.Getter;
  import lombok.RequiredArgsConstructor;
  import org.apache.skywalking.oap.server.core.storage.annotation.ElasticSearch;
  
  /**
   * ElasticSearchExtension represents extra metadata for columns, but specific for ElasticSearch usages.
   *
   * @since 9.1.0
   */
  @Getter
  @RequiredArgsConstructor
  public class ElasticSearchExtension {
      /**
       * The analyzer policy appointed to fuzzy query, especially for ElasticSearch.
       * When it is null, it means no need to build match query, no `copy_to` column, and no analyzer assigned.
       */
      private final ElasticSearch.MatchQuery.AnalyzerType analyzer;
  
      private final String legacyColumnName;
  
      private final boolean isKeyword;
  
      private final boolean isRouting;
  
      public boolean needMatchQuery() {
          return analyzer != null;
      }
  }
  