content: /*
   * 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.sidecar.common;
  
  import java.util.function.Consumer;
  
  /**
   * Interface to build data objects
   *
   * @param <T> type of builder
   * @param <R> type of result from build
   */
  public interface DataObjectBuilder<T extends DataObjectBuilder<?, ?>, R>
  {
      /**
       * Self typing
       *
       * @return type of implementor class
       */
      T self();
  
      /**
       * Build into data object of type R
       *
       * @return data object type
       */
      R build();
  
      /**
       * Updates a field in the builder
       *
       * @param updater function to mutate fields
       * @return builder itself for chained invocation
       */
      default T update(Consumer<? super T> updater)
      {
          updater.accept(self());
          return self();
      }
  }
  