io.ray.streaming.state.keystate

Class KeyGroup

java.lang.Object

io.ray.streaming.state.keystate.KeyGroup

All Implemented Interfaces:

Serializable

public class KeyGroup
extends Object
implements Serializable

This class defines key-groups. Key-groups is the key space in a job, which is partitioned for keyed state processing in state backend. The boundaries of the key-group are inclusive.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
KeyGroup(int startIndex, int endIndex) Defines the range [startIndex, endIndex]

Method Summary

Modifier and Type	Method and Description
int	getEndIndex()
int	getStartIndex()
int	size()
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

KeyGroup

public KeyGroup(int startIndex,
                int endIndex)

Defines the range [startIndex, endIndex]

Parameters:

startIndex - start of the range (inclusive)

endIndex - end of the range (inclusive)

Method Detail

size

public int size()

Returns:

The number of key-group in the range

getStartIndex

public int getStartIndex()

getEndIndex

public int getEndIndex()

toString

public String toString()

Overrides:

toString in class Object