code: /**
   * Copyright 2021 Alibaba, Inc. and its affiliates. All Rights Reserved.
   * 
   * Licensed 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.
   
   * <p>
   * \author   Hongqing.hu
   * \date     Mar 2021
   * \brief    Get single document by primary key
   */
  
  package com.alibaba.proxima.be.client;
  
  /**
   * Get document request
   */
  public class GetDocumentRequest {
    private final String collectionName;
    private final long primaryKey;
    private boolean debugMode;
  
    private GetDocumentRequest(Builder builder) {
      this.collectionName = builder.collectionName;
      this.primaryKey = builder.primaryKey;
      this.debugMode = builder.debugMode;
    }
  
    public String getCollectionName() {
      return collectionName;
    }
  
    public long getPrimaryKey() {
      return primaryKey;
    }
  
    public boolean isDebugMode() {
      return debugMode;
    }
  
    /**
     * New GetDocumentRequest builder
     * @return Builder
     */
    public static Builder newBuilder() {
      return new Builder();
    }
  
    /**
     * Builder for GetDocumentRequest
     */
    public static class Builder {
      // required parameters
      private String collectionName;
      private long primaryKey;
  
      // optional parameters
      private boolean debugMode = false;
  
      /**
       * Empty constructor
       */
      public Builder() {
      }
  
      /**
       * Constructor with collection name and primary key
       * @param collectionName collection name
       * @param primaryKey primary key
       */
      public Builder(String collectionName, long primaryKey) {
        this.collectionName = collectionName;
        this.primaryKey = primaryKey;
      }
  
      /**
       * Set collection name
       * @param collectionName collection name
       * @return Builder
       */
      public Builder withCollectionName(String collectionName) {
        this.collectionName = collectionName;
        return this;
      }
  
      /**
       * Set primary key
       * @param primaryKey primary key to query
       * @return Builder
       */
      public Builder withPrimaryKey(long primaryKey) {
        this.primaryKey = primaryKey;
        return this;
      }
  
      /**
       * Set debug mode
       * @param debugMode is debug mode, true means debug
       * @return Builder
       */
      public Builder withDebugMode(boolean debugMode) {
        this.debugMode = debugMode;
        return this;
      }
  
      /**
       * Build get document request object
       * @return GetDocumentRequest
       */
      public GetDocumentRequest build() {
        return new GetDocumentRequest(this);
      }
    }
  }
  