Package org.apache.druid.query

Enum JoinAlgorithm

java.lang.Object

java.lang.Enum<JoinAlgorithm>

org.apache.druid.query.JoinAlgorithm

All Implemented Interfaces:

Serializable, Comparable<JoinAlgorithm>

public enum JoinAlgorithm
extends Enum<JoinAlgorithm>

Enum Constant Summary

Enum Constants

Enum Constant	Description
BROADCAST
SORT_MERGE

Method Summary

Modifier and Type	Method	Description
static JoinAlgorithm	fromString(String id)
String	getId()
abstract boolean	requiresSubquery()	Whether this join algorithm requires subqueries for all inputs.
String	toString()
static JoinAlgorithm	valueOf(String name)	Returns the enum constant of this type with the specified name.
static JoinAlgorithm[]	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, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

BROADCAST

public static final JoinAlgorithm BROADCAST

SORT_MERGE

public static final JoinAlgorithm SORT_MERGE

Method Detail

values

public static JoinAlgorithm[] 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 (JoinAlgorithm c : JoinAlgorithm.values())
    System.out.println(c);

Returns:

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

valueOf

public static JoinAlgorithm valueOf(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:

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

NullPointerException - if the argument is null

fromString

public static JoinAlgorithm fromString(String id)

getId

public String getId()

requiresSubquery

public abstract boolean requiresSubquery()

Whether this join algorithm requires subqueries for all inputs.

toString

public String toString()

Overrides:

toString in class Enum<JoinAlgorithm>