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.intermediate.operator;
  
  import java.util.Optional;
  
  public class GroupOp extends InterOpBase {
      // List of Pair<FfiVariable, FfiAlias>
      private Optional<OpArg> groupByKeys;
  
      // List<ArgAggFn>
      private Optional<OpArg> groupByValues;
  
      public GroupOp() {
          super();
          groupByKeys = Optional.empty();
          groupByValues = Optional.empty();
      }
  
      public Optional<OpArg> getGroupByKeys() {
          return groupByKeys;
      }
  
      public Optional<OpArg> getGroupByValues() {
          return groupByValues;
      }
  
      public void setGroupByKeys(OpArg groupByKeys) {
          this.groupByKeys = Optional.of(groupByKeys);
      }
  
      public void setGroupByValues(OpArg groupByValues) {
          this.groupByValues = Optional.of(groupByValues);
      }
  }
  