org.apache.druid.query.groupby.epinephelinae

Class ReusableEntry<KeyType>

java.lang.Object

org.apache.druid.query.groupby.epinephelinae.ReusableEntry<KeyType>

All Implemented Interfaces:

Grouper.Entry<KeyType>

public class ReusableEntry<KeyType>
extends Object
implements Grouper.Entry<KeyType>

A Grouper.Entry implementation that is reusable. Grouper.iterator(boolean) allows reuse of Entries, and so this class helps implementations taking advantage of that.

Constructor Summary

Constructors

Constructor and Description
ReusableEntry(KeyType key, Object[] values)

Method Summary

Modifier and Type	Method and Description
static <T> ReusableEntry<T>	create(Grouper.KeySerde<T> keySerde, int numValues) Create a new instance based on a particular Grouper.KeySerde and a particular Object values size.
KeyType	getKey() Returns the key, which enables modifying the key.
Object[]	getValues() Returns the values array, which enables setting individual values.
void	setKey(KeyType key) Replaces the key completely.
void	setValues(Object[] values) Replaces the values array completely.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ReusableEntry

public ReusableEntry(@Nullable
                     KeyType key,
                     @Nullable
                     Object[] values)

Method Detail

create

public static <T> ReusableEntry<T> create(Grouper.KeySerde<T> keySerde,
                                          int numValues)

Create a new instance based on a particular Grouper.KeySerde and a particular Object values size.

getKey

public KeyType getKey()

Returns the key, which enables modifying the key.

Specified by:

getKey in interface Grouper.Entry<KeyType>

getValues

public Object[] getValues()

Returns the values array, which enables setting individual values.

Specified by:

getValues in interface Grouper.Entry<KeyType>

setKey

public void setKey(KeyType key)

Replaces the key completely.

setValues

public void setValues(Object[] values)

Replaces the values array completely.

toString

public String toString()

Overrides:

toString in class Object