io.prestosql.operator.index

Interface IndexedData

All Superinterfaces:

AutoCloseable, Closeable

All Known Implementing Classes:

IndexSnapshot, StreamingIndexedData

public interface IndexedData
extends Closeable

Field Summary

Fields

Modifier and Type	Field and Description
static long	NO_MORE_POSITIONS
static long	UNLOADED_INDEX_KEY

Method Summary

Modifier and Type	Method and Description
void	appendTo(long position, PageBuilder pageBuilder, int outputChannelOffset)
void	close()
long	getJoinPosition(int position, Page page) Returns UNLOADED_INDEX_KEY if the key has not been loaded.
long	getNextJoinPosition(long currentPosition) Returns the next address to join.

Field Detail

UNLOADED_INDEX_KEY

static final long UNLOADED_INDEX_KEY

See Also:

Constant Field Values

NO_MORE_POSITIONS

static final long NO_MORE_POSITIONS

See Also:

Constant Field Values

Method Detail

getJoinPosition

long getJoinPosition(int position,
                     Page page)

Returns UNLOADED_INDEX_KEY if the key has not been loaded. Returns NO_MORE_POSITIONS if the key has been loaded, but has no values. Returns a valid address if the key has been loaded and has values.

getNextJoinPosition

long getNextJoinPosition(long currentPosition)

Returns the next address to join. Returns NO_MORE_POSITIONS if there are no more values to join.

appendTo

void appendTo(long position,
              PageBuilder pageBuilder,
              int outputChannelOffset)

close

void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable