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.type;
  
  import com.google.common.collect.ImmutableList;
  
  import org.apache.calcite.rel.type.RelDataType;
  import org.apache.calcite.rel.type.RelDataTypeFieldImpl;
  import org.apache.calcite.rel.type.RelRecordType;
  import org.apache.calcite.rel.type.StructKind;
  
  import java.util.Objects;
  
  /**
   * Always return the explicit type for each field
   */
  public class ExplicitRecordType extends RelRecordType {
      private final RelDataType explicitType;
  
      public ExplicitRecordType(RelDataType explicitType) {
          super(
                  StructKind.FULLY_QUALIFIED,
                  ImmutableList.of(new RelDataTypeFieldImpl("", 0, explicitType)),
                  false);
          this.explicitType = Objects.requireNonNull(explicitType);
      }
  
      public RelDataType getExplicitType() {
          return explicitType;
      }
  }
  