api/src/main/java/org/apache/iceberg/DataTask.java

/*
 * 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.iceberg;

import org.apache.iceberg.io.CloseableIterable;

/**
 * A task that returns data as {@link StructLike rows} instead of where to read data.
 */
public interface DataTask extends FileScanTask {
  @Override
  default boolean isDataTask() {
    return true;
  }

  @Override
  default DataTask asDataTask() {
    return this;
  }

  /**
   * Returns an iterable of {@link StructLike} rows.
   */
  CloseableIterable<StructLike> rows();
}