io.prestosql.spiller

Interface SingleStreamSpiller

All Superinterfaces:

AutoCloseable, Closeable

All Known Implementing Classes:

FileSingleStreamSpiller

public interface SingleStreamSpiller
extends Closeable

Method Summary

Modifier and Type	Method and Description
void	close() Close releases/removes all underlying resources used during spilling like for example all created temporary files.
com.google.common.util.concurrent.ListenableFuture<List<Page>>	getAllSpilledPages() Initiates read of previously spilled pages.
Iterator<Page>	getSpilledPages() Returns list of previously spilled Pages as a single stream.
long	getSpilledPagesInMemorySize() Returns estimate size of pages that would be returned by getAllSpilledPages().
com.google.common.util.concurrent.ListenableFuture<?>	spill(Iterator<Page> page) Initiate spilling of pages stream.
default com.google.common.util.concurrent.ListenableFuture<?>	spill(Page page) Initiate spilling of single page.

Method Detail

spill

com.google.common.util.concurrent.ListenableFuture<?> spill(Iterator<Page> page)

Initiate spilling of pages stream. Returns completed future once spilling has finished. Next spill can be initiated as soon as previous one completes.

spill

default com.google.common.util.concurrent.ListenableFuture<?> spill(Page page)

Initiate spilling of single page. Returns completed future once spilling has finished. Next spill can be initiated as soon as previous one completes.

getSpilledPages

Iterator<Page> getSpilledPages()

Returns list of previously spilled Pages as a single stream. Pages are in the same order as they were spilled. Method requires the issued spill request to be completed.

getSpilledPagesInMemorySize

long getSpilledPagesInMemorySize()

Returns estimate size of pages that would be returned by getAllSpilledPages().

getAllSpilledPages

com.google.common.util.concurrent.ListenableFuture<List<Page>> getAllSpilledPages()

Initiates read of previously spilled pages. The returned Future will be complete once all pages are read.

close

void close()

Close releases/removes all underlying resources used during spilling like for example all created temporary files.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable