org.apache.flink.connector.file.src.reader

接口 BulkFormat.Reader<T>

所有超级接口:

AutoCloseable, Closeable

所有已知实现类:

FileRecordFormatAdapter.Reader, StreamFormatAdapter.Reader

封闭接口:

BulkFormat<T,SplitT extends FileSourceSplit>

public static interface BulkFormat.Reader<T>
extends Closeable

The actual reader that reads the batches of records.

方法概要

限定符和类型	方法和说明
void	close() Closes the reader and should release all resources.
BulkFormat.RecordIterator<T>	readBatch() Reads one batch.

方法详细资料

readBatch

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

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.

抛出:

IOException

close

void close()
    throws IOException

Closes the reader and should release all resources.

指定者:

close 在接口中 AutoCloseable

指定者:

close 在接口中 Closeable

抛出:

IOException