org.apache.druid.segment

Class EncodedKeyComponent<K>

java.lang.Object

org.apache.druid.segment.EncodedKeyComponent<K>

Type Parameters:

K - Encoded key component type

public class EncodedKeyComponent<K>
extends Object

Represents the encoded component of a row key corresponding to a single dimension. The row key contains a component for each dimension.

Constructor Summary

Constructors

Constructor and Description
EncodedKeyComponent(K component, long effectiveSizeBytes) Creates an EncodedKeyComponent corresponding to a single dimension.

Method Summary

Modifier and Type	Method and Description
K	getComponent() Encoded dimension value(s) to be used as a component for a row key.
long	getEffectiveSizeBytes() Effective size of the key component in bytes.

Methods inherited from class java.lang.Object

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

Constructor Detail

EncodedKeyComponent

public EncodedKeyComponent(@Nullable
                           K component,
                           long effectiveSizeBytes)

Creates an EncodedKeyComponent corresponding to a single dimension.

Parameters:

component - The encoded dimension value(s)

effectiveSizeBytes - Effective size of the key component in bytes. This value is used to estimate on-heap memory usage and must account for the footprint of both the original and encoded dimension values, as applicable.

Method Detail

getComponent

@Nullable
public K getComponent()

Encoded dimension value(s) to be used as a component for a row key.

getEffectiveSizeBytes

public long getEffectiveSizeBytes()

Effective size of the key component in bytes. This value is used to estimate on-heap memory usage and accounts for the memory footprint of both the original and encoded dimension values, as applicable.