Package org.apache.flink.connector.file.src.impl

Class StreamFormatAdapter.Reader<T>

java.lang.Object

org.apache.flink.connector.file.src.impl.StreamFormatAdapter.Reader<T>

All Implemented Interfaces:

Closeable, AutoCloseable, BulkFormat.Reader<T>

Enclosing class:

StreamFormatAdapter<T>

public static final class StreamFormatAdapter.Reader<T>
extends Object
implements BulkFormat.Reader<T>

The reader adapter, from StreamFormat.Reader to BulkFormat.Reader.

Method Summary

Modifier and Type	Method	Description
void	close()	Closes the reader and should release all resources.
BulkFormat.RecordIterator<T>	readBatch()	Reads one batch.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

readBatch

@Nullable
public BulkFormat.RecordIterator<T> readBatch()
                                       throws IOException

Description copied from interface: BulkFormat.Reader

Reads one batch. The method should return null when reaching the end of the input. The returned batch will be handed over to the processing threads as one.

The returned iterator object and any contained objects may be held onto by the file source for some time, so it should not be immediately reused by the reader.

To implement reuse and to save object allocation, consider using a Pool and recycle objects into the Pool in the the BulkFormat.RecordIterator.releaseBatch() method.

Specified by:

readBatch in interface BulkFormat.Reader<T>

Throws:

IOException

close

public void close()
           throws IOException

Description copied from interface: BulkFormat.Reader

Closes the reader and should release all resources.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface BulkFormat.Reader<T>

Specified by:

close in interface Closeable

Throws:

IOException