PartitioningSpiller (presto-main 345 API)

All Superinterfaces:

AutoCloseable, Closeable

All Known Implementing Classes:

GenericPartitioningSpiller
```
public interface PartitioningSpiller
extends Closeable
```

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static class PartitioningSpiller.PartitioningSpillResult

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`close()`	Closes and removes all underlying resources used during spilling.
`Iterator<Page>`	`getSpilledPages(int partition)`	Returns iterator of previously spilled pages from given partition.
`PartitioningSpiller.PartitioningSpillResult`	`partitionAndSpill(Page page, IntPredicate spillPartitionMask)`	Partition page and enqueue partitioned pages to spill writers.
`void`	`verifyAllPartitionsRead()`

- Method Detail
  - partitionAndSpill
```
PartitioningSpiller.PartitioningSpillResult partitionAndSpill(Page page,
                                                              IntPredicate spillPartitionMask)
```
    Partition page and enqueue partitioned pages to spill writers. PartitioningSpiller.PartitioningSpillResult.getSpillingFuture() is completed when spilling is finished.
    This method may not be called if previously initiated spilling is not finished yet.
  - getSpilledPages
```
Iterator<Page> getSpilledPages(int partition)
```
    Returns iterator of previously spilled pages from given partition. Callers are expected to call this method once. Calling multiple times can results in undefined behavior.
    This method may not be called if previously initiated spilling is not finished yet.
    This method may perform blocking I/O to flush internal buffers.
  - verifyAllPartitionsRead
```
void verifyAllPartitionsRead()
```
  - close
```
void close()
    throws IOException
```
    Closes and removes all underlying resources used during spilling.
    
    Specified by:
    
    close in interface AutoCloseable
    
    Specified by:
    
    close in interface Closeable
    
    Throws:
    
    IOException