/**
* 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.hadoop.hive.ql.io.orc;
import java.io.IOException;
import org.apache.hadoop.hive.ql.exec.vector.VectorizedRowBatch;
/**
* A row-by-row iterator for ORC files.
*/
public interface RecordReader extends org.apache.orc.RecordReader {
/**
* Does the reader have more rows available.
* @return true if there are more rows
* @throws java.io.IOException
*/
boolean hasNext() throws IOException;
/**
* Read the next row.
* @param previous a row object that can be reused by the reader
* @return the row that was read
* @throws java.io.IOException
*/
Object next(Object previous) throws IOException;
}