Package io.deephaven.engine.table.impl.util.hash

Enum Class NullableLongLongMaps.ReadMode

java.lang.Object

java.lang.Enum<NullableLongLongMaps.ReadMode>

io.deephaven.engine.table.impl.util.hash.NullableLongLongMaps.ReadMode

All Implemented Interfaces:

Serializable, Comparable<NullableLongLongMaps.ReadMode>, java.lang.constant.Constable

Enclosing class:

NullableLongLongMaps

public static enum NullableLongLongMaps.ReadMode
extends Enum<NullableLongLongMaps.ReadMode>

How a NullableLongLongMaps.Shape.K4V4 map's chunked gets choose between the serial probe loop and the AMAC window. Production code uses ADAPTIVE; the pinned modes exist so the yardstick can price the adaptive gate against each pure strategy, and so tests can exercise the window kernel at sizes where the gate would choose serial. The narrow shapes have no window kernel: their reads are serial whatever the mode, and WINDOW is rejected for them.

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
ADAPTIVE	The footprint gate decides per chunk (see NullableLongLongMaps.wantWindowedReads(int, int)).
SERIAL	Always the serial probe loop, regardless of footprint.
WINDOW	Always the AMAC window, regardless of footprint.

Method Summary

Modifier and Type	Method	Description
static NullableLongLongMaps.ReadMode	valueOf(String name)	Returns the enum constant of this class with the specified name.
static NullableLongLongMaps.ReadMode[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

ADAPTIVE

public static final NullableLongLongMaps.ReadMode ADAPTIVE

The footprint gate decides per chunk (see NullableLongLongMaps.wantWindowedReads(int, int)).

WINDOW

public static final NullableLongLongMaps.ReadMode WINDOW

Always the AMAC window, regardless of footprint. NullableLongLongMaps.Shape.K4V4 only.

SERIAL

public static final NullableLongLongMaps.ReadMode SERIAL

Always the serial probe loop, regardless of footprint.

Method Details

values

public static NullableLongLongMaps.ReadMode[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static NullableLongLongMaps.ReadMode valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null