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 org.apache.arrow.dataset.jni;
  
  import org.apache.arrow.dataset.scanner.ScanTask;
  import org.apache.arrow.vector.ipc.ArrowReader;
  
  /**
   * Native implementation of {@link ScanTask}. Currently RecordBatches are iterated directly by the
   * scanner id via {@link JniWrapper}, thus we allow only one-time execution of method {@link
   * #execute()}. If a re-scan operation is expected, call {@link NativeDataset#newScan} to create a
   * new scanner instance.
   */
  @Deprecated
  public class NativeScanTask implements ScanTask {
    private final NativeScanner scanner;
  
    /** Constructor. */
    public NativeScanTask(NativeScanner scanner) {
      this.scanner = scanner;
    }
  
    @Override
    public ArrowReader execute() {
      return scanner.execute();
    }
  
    @Override
    public void close() {
      scanner.close();
    }
  }
  