org.apache.druid.sql.calcite.run

Enum EngineFeature

java.lang.Object

java.lang.Enum<EngineFeature>

org.apache.druid.sql.calcite.run.EngineFeature

All Implemented Interfaces:

Serializable, Comparable<EngineFeature>

public enum EngineFeature
extends Enum<EngineFeature>

Arguments to SqlEngine.feature(EngineFeature, PlannerContext).

Enum Constant Summary

Enum Constants

Enum Constant and Description
ALLOW_BINDABLE_PLAN Planner is permitted to use a Bindable plan on local resources, instead of QueryMaker, for SELECT query implementation.
CAN_INSERT Can execute INSERT statements.
CAN_REPLACE Can execute REPLACE statements.
CAN_SELECT Can execute SELECT statements.
READ_EXTERNAL_DATA Queries can use ExternalDataSource.
SCAN_NEEDS_SIGNATURE Scan queries must have DruidQuery.CTX_SCAN_SIGNATURE set in their query contexts.
SCAN_ORDER_BY_NON_TIME Scan queries can use ScanQuery.getOrderBys() that are based on something other than the "__time" column.
TIME_BOUNDARY_QUERY Queries of type TimeBoundaryQuery are usable.
TIMESERIES_QUERY Queries of type TimeseriesQuery are usable.
TOPN_QUERY Queries of type TopNQuery are usable.

Method Summary

Modifier and Type	Method and Description
static EngineFeature	valueOf(String name) Returns the enum constant of this type with the specified name.
static EngineFeature[]	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

CAN_SELECT

public static final EngineFeature CAN_SELECT

Can execute SELECT statements.

CAN_INSERT

public static final EngineFeature CAN_INSERT

Can execute INSERT statements.

CAN_REPLACE

public static final EngineFeature CAN_REPLACE

Can execute REPLACE statements.

TIMESERIES_QUERY

public static final EngineFeature TIMESERIES_QUERY

Queries of type TimeseriesQuery are usable.

TOPN_QUERY

public static final EngineFeature TOPN_QUERY

Queries of type TopNQuery are usable.

TIME_BOUNDARY_QUERY

public static final EngineFeature TIME_BOUNDARY_QUERY

Queries of type TimeBoundaryQuery are usable.

READ_EXTERNAL_DATA

public static final EngineFeature READ_EXTERNAL_DATA

Queries can use ExternalDataSource.

SCAN_ORDER_BY_NON_TIME

public static final EngineFeature SCAN_ORDER_BY_NON_TIME

Scan queries can use ScanQuery.getOrderBys() that are based on something other than the "__time" column.

SCAN_NEEDS_SIGNATURE

public static final EngineFeature SCAN_NEEDS_SIGNATURE

Scan queries must have DruidQuery.CTX_SCAN_SIGNATURE set in their query contexts.

ALLOW_BINDABLE_PLAN

public static final EngineFeature ALLOW_BINDABLE_PLAN

Planner is permitted to use a Bindable plan on local resources, instead of QueryMaker, for SELECT query implementation. Used for system tables and the like.

Method Detail

values

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

Returns:

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

valueOf

public static EngineFeature 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