com.datastrato.gravitino.rel.expressions.distributions

Enum Strategy

java.lang.Object

java.lang.Enum<Strategy>

com.datastrato.gravitino.rel.expressions.distributions.Strategy

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<Strategy>

public enum Strategy
extends java.lang.Enum<Strategy>

An enum that defines the distribution strategy.

The following strategies are supported:

• Hash: Uses the hash value of the expression to distribute data.
• Range: Uses the range of the expression specified to distribute data.
• Even: Distributes data evenly across partitions.

Enum Constant Summary

Enum Constants

Enum Constant and Description
EVEN
HASH
RANGE

Method Summary

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

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

HASH

public static final Strategy HASH

RANGE

public static final Strategy RANGE

EVEN

public static final Strategy EVEN

Method Detail

values

public static Strategy[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (Strategy c : Strategy.values())
    System.out.println(c);

Returns:

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

valueOf

public static Strategy valueOf(java.lang.String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (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:

java.lang.IllegalArgumentException - if this enum type has no constant with the specified name

java.lang.NullPointerException - if the argument is null

getByName

public static Strategy getByName(java.lang.String name)