<?php
/*
 * Copyright 2014 Google Inc.
 *
 * 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.
 */

namespace Google\Service\DiscoveryEngine;

class GoogleCloudDiscoveryengineV1SearchResponseNaturalLanguageQueryUnderstandingInfoStructuredExtractedFilter extends \Google\Model
{
  protected $expressionType = GoogleCloudDiscoveryengineV1SearchResponseNaturalLanguageQueryUnderstandingInfoStructuredExtractedFilterExpression::class;
  protected $expressionDataType = '';

  /**
   * The expression denoting the filter that was extracted from the input query
   * in a structured form. It can be a simple expression denoting a single
   * string, numerical or geolocation constraint or a compound expression which
   * is a combination of multiple expressions connected using logical (OR and
   * AND) operators.
   *
   * @param GoogleCloudDiscoveryengineV1SearchResponseNaturalLanguageQueryUnderstandingInfoStructuredExtractedFilterExpression $expression
   */
  public function setExpression(GoogleCloudDiscoveryengineV1SearchResponseNaturalLanguageQueryUnderstandingInfoStructuredExtractedFilterExpression $expression)
  {
    $this->expression = $expression;
  }
  /**
   * @return GoogleCloudDiscoveryengineV1SearchResponseNaturalLanguageQueryUnderstandingInfoStructuredExtractedFilterExpression
   */
  public function getExpression()
  {
    return $this->expression;
  }
}

// Adding a class alias for backwards compatibility with the previous class name.
class_alias(GoogleCloudDiscoveryengineV1SearchResponseNaturalLanguageQueryUnderstandingInfoStructuredExtractedFilter::class, 'Google_Service_DiscoveryEngine_GoogleCloudDiscoveryengineV1SearchResponseNaturalLanguageQueryUnderstandingInfoStructuredExtractedFilter');