ProducerMergedPartitionFileWriter (Flink : Runtime 2.1.0 API)

java.lang.Object
- org.apache.flink.runtime.io.network.partition.hybrid.tiered.file.ProducerMergedPartitionFileWriter

All Implemented Interfaces:

PartitionFileWriter
```
public class ProducerMergedPartitionFileWriter
extends Object
implements PartitionFileWriter
```
The implementation of PartitionFileWriter with producer-side merge mode. In this mode, the shuffle data is written in the producer side, the consumer side need to read multiple producers to get its partition data.
Note that one partition file written by the ProducerMergedPartitionFileWriter may contain the data of multiple subpartitions.

Nested Class Summary
- Nested classes/interfaces inherited from interface org.apache.flink.runtime.io.network.partition.hybrid.tiered.file.PartitionFileWriter
  PartitionFileWriter.SegmentBufferContext, PartitionFileWriter.SubpartitionBufferContext

Method Summary

All Methods Instance Methods Concrete 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.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - write
```
public CompletableFuture<Void> write(TieredStoragePartitionId partitionId,
                                     List<PartitionFileWriter.SubpartitionBufferContext> buffersToWrite)
```
    Description copied from interface: PartitionFileWriter
    
    Write the buffers to the partition file. The written buffers may belong to multiple subpartitions, but these buffers will be consecutive in the file.
    
    Specified by:
    
    write in interface PartitionFileWriter
    
    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
```
public void release()
```
    Description copied from interface: PartitionFileWriter
    
    Release all the resources of the PartitionFileWriter.
    
    Specified by:
    
    release in interface PartitionFileWriter