Package io.deephaven.generic.region

Interface AppendOnlyRegionAccessor<ATTR extends Any>

All Superinterfaces:

LongSizedDataStructure

public interface AppendOnlyRegionAccessor<ATTR extends Any>
extends LongSizedDataStructure

Minimal interface for an append-only flat data source, with contiguous rows from 0, inclusive, to size, exclusive.

Method Summary

Modifier and Type	Method	Description
void	readChunkPage(long firstRowPosition, int minimumSize, @NotNull WritableChunk<ATTR> destination)	Read a suffix of a page from this region into destination, beginning at chunk position 0.

Methods inherited from interface io.deephaven.util.datastructures.LongSizedDataStructure

intSize, intSize, size

Method Details

readChunkPage

void readChunkPage(long firstRowPosition,
 int minimumSize,
 @NotNull
 @NotNull WritableChunk<ATTR> destination)

Read a suffix of a page from this region into destination, beginning at chunk position 0. Should read between minimumSize and destination.capacity() rows, and report the resulting size via setSize.

Parameters:

firstRowPosition - The first row position to read

minimumSize - The minimum number of rows to read that will satisfy this request

destination - The destination chunk to fill