PartitionFileWriter (Flink : Runtime 2.1.0 API)

All Known Implementing Classes:

ProducerMergedPartitionFileWriter, SegmentPartitionFileWriter
```
public interface PartitionFileWriter
```
The PartitionFileWriter interface defines the write logic for different types of shuffle files.

Nested Class Summary

Nested Classes
Modifier and Type	Interface	Description
`static class`	`PartitionFileWriter.SegmentBufferContext`	The `PartitionFileWriter.SegmentBufferContext` contains all the buffers belonging to the segment.
`static class`	`PartitionFileWriter.SubpartitionBufferContext`	The `PartitionFileWriter.SubpartitionBufferContext` contains all the buffers belonging to one subpartition.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`release()`	Release all the resources of the `PartitionFileWriter`.
`CompletableFuture<Void>`	`write(TieredStoragePartitionId partitionId, List<PartitionFileWriter.SubpartitionBufferContext> buffersToWrite)`	Write the buffers to the partition file.

- Method Detail
  - write
```
CompletableFuture<Void> write(TieredStoragePartitionId partitionId,
                              List<PartitionFileWriter.SubpartitionBufferContext> buffersToWrite)
```
    Write the buffers to the partition file. The written buffers may belong to multiple subpartitions, but these buffers will be consecutive in the file.
    
    Parameters:
    
    partitionId - the partition id
    
    buffersToWrite - the buffers to be written to the partition file
    
    Returns:
    
    the completable future indicating whether the writing file process has finished. If the CompletableFuture is completed, the written process is completed.
  - release
```
void release()
```
    Release all the resources of the PartitionFileWriter.