Package org.apache.drill.exec.server.options

Interface Summary

Interface	Description
OptionManager	Manager for Drill options.
OptionSet	Immutable set of options accessible by name or validator.

Class Summary

Class	Description
BaseOptionManager	This OptionManager implements some the basic methods and should be extended by concrete implementations.
DrillConfigIterator
FallbackOptionManager	An OptionManager which allows for falling back onto another OptionManager when retrieving options.
FragmentOptionManager	OptionManager that holds options within FragmentContextImpl.
InMemoryOptionManager	This is an OptionManager that holds options in memory rather than in a persistent store.
OptionDefinition	This holds all the information about an option.
OptionList
OptionMetaData	Contains information about the scopes in which an option can be set, and an option's visibility.
OptionValidator	Validates the values provided to Drill options.
OptionValidator.OptionDescription
OptionValue	An option value is used internally by an OptionManager to store a run-time setting.
PersistedOptionValue	This represents a persisted OptionValue.
PersistedOptionValue.Deserializer	This deserializer only fetches the relevant information we care about from a store, which is the value of an option.
QueryOptionManager	OptionManager that holds options within QueryContext.
SessionOptionManager	OptionManager that holds options within UserSession context.
SystemOptionManager	OptionManager that holds options within DrillbitContext.
TypeValidators
TypeValidators.AdminUserGroupsValidator	Unless explicitly changed by the user previously, the admin user groups can only be determined at runtime
TypeValidators.AdminUsersValidator	Unless explicitly changed by the user previously, the admin user can only be determined at runtime
TypeValidators.BooleanValidator
TypeValidators.DateTimeFormatValidator	Validator that checks if the given DateTime format template is valid.
TypeValidators.DoubleValidator
TypeValidators.EnumeratedStringValidator	Validator that checks if the given value is included in a list of acceptable values.
TypeValidators.IntegerValidator
TypeValidators.LongValidator
TypeValidators.MaxRangeDoubleValidator
TypeValidators.MaxWidthValidator	Max width is a special validator which computes and validates the maxwidth.
TypeValidators.MinRangeDoubleValidator
TypeValidators.NonNegativeLongValidator
TypeValidators.PositiveLongValidator
TypeValidators.PowerOfTwoLongValidator
TypeValidators.RangeDoubleValidator
TypeValidators.RangeLongValidator
TypeValidators.StringValidator
TypeValidators.TypeValidator

Enum Summary

Enum	Description
OptionValue.AccessibleScopes	Defines where an option can be configured.
OptionValue.Kind
OptionValue.OptionScope	This defines where an option was actually configured.