content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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.aliyun.odps.table.read;
  
  import com.aliyun.odps.data.ArrayRecord;
  import com.aliyun.odps.table.SessionType;
  import com.aliyun.odps.table.configuration.ReaderOptions;
  import com.aliyun.odps.table.read.split.InputSplit;
  import com.aliyun.odps.table.read.split.InputSplitAssigner;
  import org.apache.arrow.vector.VectorSchemaRoot;
  
  import java.io.IOException;
  
  /**
   * A logical representation of a maxcompute table batch read session.
   */
  public interface TableBatchReadSession extends TableReadSession {
  
      /**
       * Return the input split assigner {@link InputSplitAssigner} of this table batch read session.
       */
      InputSplitAssigner getInputSplitAssigner() throws IOException;
  
      /**
       * Returns a record data reader {@link SplitReader} to do the actual reading work.
       */
      default SplitReader<ArrayRecord> createRecordReader(InputSplit split, ReaderOptions options) throws IOException {
          throw new UnsupportedOperationException("Cannot create record reader.");
      }
  
      /**
       * Returns a arrow data reader {@link SplitReader} to do the actual reading work.
       */
      default SplitReader<VectorSchemaRoot> createArrowReader(InputSplit split, ReaderOptions options) throws IOException {
          throw new UnsupportedOperationException("Cannot create arrow reader.");
      }
  
      @Override
      default SessionType getType() {
          return SessionType.BATCH_READ;
      }
  }
  