content: /*
   * Copyright 2020 Alibaba Group Holding Limited.
   *
   * 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.
   */
  
  package com.alibaba.graphscope.common.ir.rel;
  
  import com.google.common.collect.Maps;
  
  import java.util.Collections;
  import java.util.Map;
  
  public class QueryParams {
      private Map<String, Object> params;
  
      public QueryParams() {
          this.params = Maps.newHashMap();
      }
  
      public QueryParams addParam(String key, Object value) {
          this.params.put(key, value);
          return this;
      }
  
      public Map<String, Object> getParams() {
          return Collections.unmodifiableMap(this.params);
      }
  }
  