org.apache.flink.runtime.io.network.api.reader.MutableRecordReader Maven / Gradle / Ivy
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* 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,
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* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.flink.runtime.io.network.api.reader;
import org.apache.flink.core.io.IOReadableWritable;
import org.apache.flink.runtime.io.network.partition.consumer.InputGate;
import java.io.IOException;
/**
* Implementation of the record-oriented reader for mutable record types.
*
* @param The type of the record that is read.
*/
public class MutableRecordReader extends AbstractRecordReader implements MutableReader {
/**
* Creates a new MutableRecordReader that de-serializes records from the given input gate and
* can spill partial records to disk, if they grow large.
*
* @param inputGate The input gate to read from.
* @param tmpDirectories The temp directories. USed for spilling if the reader concurrently
* reconstructs multiple large records.
*/
public MutableRecordReader(InputGate inputGate, String[] tmpDirectories) {
super(inputGate, tmpDirectories);
}
@Override
public boolean next(final T target) throws IOException, InterruptedException {
return getNextRecord(target);
}
@Override
public void clearBuffers() {
super.clearBuffers();
}
}