Package io.deephaven.engine.table.impl

Class SortHelpers

java.lang.Object

io.deephaven.engine.table.impl.SortHelpers

public class SortHelpers
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static int	groupedRedirectionThreshold	If we have more than this many entries per group, instead of creating a large flat row redirection, we create a row redirection that is composed of the group indices and an accumulated cardinality cache.
static boolean	sortBySymbolTable

Constructor Summary

Constructors

Constructor	Description
SortHelpers()

Method Summary

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

sortBySymbolTable

public static boolean sortBySymbolTable

groupedRedirectionThreshold

public static int groupedRedirectionThreshold

If we have more than this many entries per group, instead of creating a large flat row redirection, we create a row redirection that is composed of the group indices and an accumulated cardinality cache. This can save a significant amount of memory when the groups are large and storing them using our RowSet structure is more efficient.

Constructor Details

SortHelpers

public SortHelpers()