Package org.apache.druid.query.groupby

Enum DeferExpressionDimensions

java.lang.Object

java.lang.Enum<DeferExpressionDimensions>

org.apache.druid.query.groupby.DeferExpressionDimensions

All Implemented Interfaces:

Serializable, Comparable<DeferExpressionDimensions>

public enum DeferExpressionDimensions
extends Enum<DeferExpressionDimensions>

Controls deferral of ExpressionVirtualColumn in GroupByQuery.

Enum Constant Summary

Enum Constants

Enum Constant	Description
ALWAYS
FIXED_WIDTH	Defer expressions when their input variables are all fixed-width types (primitive numbers, or dictionary encoded).
FIXED_WIDTH_NON_NUMERIC	Defer expressions when their input variables are all fixed-width types (primitive numbers, or dictionary encoded).
SINGLE_STRING

Field Summary

Fields

Modifier and Type	Field	Description
static final String	JSON_KEY

Method Summary

Modifier and Type	Method	Description
static DeferExpressionDimensions	fromString(String jsonName)
String	toString()
abstract boolean	useDeferredGroupBySelector(ExpressionPlan plan, List<String> requiredBindingsList, ColumnInspector inspector)
static DeferExpressionDimensions	valueOf(String name)	Returns the enum constant of this type with the specified name.
static DeferExpressionDimensions[]	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 Details

SINGLE_STRING

public static final DeferExpressionDimensions SINGLE_STRING

FIXED_WIDTH

public static final DeferExpressionDimensions FIXED_WIDTH

Defer expressions when their input variables are all fixed-width types (primitive numbers, or dictionary encoded).

FIXED_WIDTH_NON_NUMERIC

public static final DeferExpressionDimensions FIXED_WIDTH_NON_NUMERIC

Defer expressions when their input variables are all fixed-width types (primitive numbers, or dictionary encoded).

ALWAYS

public static final DeferExpressionDimensions ALWAYS

Field Details

JSON_KEY

public static final String JSON_KEY

See Also:

• Constant Field Values

Method Details

values

public static DeferExpressionDimensions[] values()

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

Returns:

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

valueOf

public static DeferExpressionDimensions 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 DeferExpressionDimensions fromString(String jsonName)

useDeferredGroupBySelector

public abstract boolean useDeferredGroupBySelector(ExpressionPlan plan,
 List<String> requiredBindingsList,
 ColumnInspector inspector)

toString

public String toString()

Overrides:

toString in class Enum<DeferExpressionDimensions>