Copyright	(c) 2013-2021 Brendan Hay
License	Mozilla Public License, v. 2.0.
Maintainer	Brendan Hay <brendan.g.hay+amazonka@gmail.com>
Stability	auto-generated
Portability	non-portable (GHC extensions)
Safe Haskell	None

Amazonka.DataBrew.Types.ConditionExpression

Description

Documentation

data ConditionExpression Source #

Represents an individual condition that evaluates to true or false.

Conditions are used with recipe actions. The action is only performed for column values where the condition evaluates to true.

If a recipe requires more than one condition, then the recipe must specify multiple ConditionExpression elements. Each condition is applied to the rows in a dataset first, before the recipe action is performed.

See: newConditionExpression smart constructor.

Constructors

ConditionExpression'
Fields value :: Maybe Text A value that the condition must evaluate to for the condition to succeed. condition :: Text A specific condition to apply to a recipe action. For more information, see Recipe structure in the Glue DataBrew Developer Guide. targetColumn :: Text A column to apply this condition to.

Instances

Instances details

Eq ConditionExpression Source #
Instance details Defined in Amazonka.DataBrew.Types.ConditionExpression Methods (==) :: ConditionExpression -> ConditionExpression -> Bool # (/=) :: ConditionExpression -> ConditionExpression -> Bool #
Read ConditionExpression Source #
Instance details Defined in Amazonka.DataBrew.Types.ConditionExpression Methods readsPrec :: Int -> ReadS ConditionExpression # readList :: ReadS [ConditionExpression] # readPrec :: ReadPrec ConditionExpression # readListPrec :: ReadPrec [ConditionExpression] #
Show ConditionExpression Source #
Instance details Defined in Amazonka.DataBrew.Types.ConditionExpression Methods showsPrec :: Int -> ConditionExpression -> ShowS # show :: ConditionExpression -> String # showList :: [ConditionExpression] -> ShowS #
Generic ConditionExpression Source #
Instance details Defined in Amazonka.DataBrew.Types.ConditionExpression Associated Types type Rep ConditionExpression :: Type -> Type # Methods from :: ConditionExpression -> Rep ConditionExpression x # to :: Rep ConditionExpression x -> ConditionExpression #
NFData ConditionExpression Source #
Instance details Defined in Amazonka.DataBrew.Types.ConditionExpression Methods rnf :: ConditionExpression -> () #
Hashable ConditionExpression Source #
Instance details Defined in Amazonka.DataBrew.Types.ConditionExpression Methods hashWithSalt :: Int -> ConditionExpression -> Int # hash :: ConditionExpression -> Int #
ToJSON ConditionExpression Source #
Instance details Defined in Amazonka.DataBrew.Types.ConditionExpression Methods toJSON :: ConditionExpression -> Value # toEncoding :: ConditionExpression -> Encoding # toJSONList :: [ConditionExpression] -> Value # toEncodingList :: [ConditionExpression] -> Encoding #
FromJSON ConditionExpression Source #
Instance details Defined in Amazonka.DataBrew.Types.ConditionExpression Methods parseJSON :: Value -> Parser ConditionExpression # parseJSONList :: Value -> Parser [ConditionExpression] #
type Rep ConditionExpression Source #
Instance details Defined in Amazonka.DataBrew.Types.ConditionExpression type Rep ConditionExpression = D1 ('MetaData "ConditionExpression" "Amazonka.DataBrew.Types.ConditionExpression" "libZSservicesZSamazonka-databrewZSamazonka-databrew" 'False) (C1 ('MetaCons "ConditionExpression'" 'PrefixI 'True) (S1 ('MetaSel ('Just "value") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Text)) :: (S1 ('MetaSel ('Just "condition") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 Text) :: S1 ('MetaSel ('Just "targetColumn") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 Text))))

newConditionExpression Source #

Arguments

:: Text	`$sel:condition:ConditionExpression'`
-> Text	`$sel:targetColumn:ConditionExpression'`
-> ConditionExpression

Create a value of ConditionExpression with all optional fields omitted.

Use generic-lens or optics to modify other optional fields.

The following record fields are available, with the corresponding lenses provided for backwards compatibility:

$sel:value:ConditionExpression', conditionExpression_value - A value that the condition must evaluate to for the condition to succeed.

$sel:condition:ConditionExpression', conditionExpression_condition - A specific condition to apply to a recipe action. For more information, see Recipe structure in the Glue DataBrew Developer Guide.

$sel:targetColumn:ConditionExpression', conditionExpression_targetColumn - A column to apply this condition to.

conditionExpression_value :: Lens' ConditionExpression (Maybe Text) Source #

A value that the condition must evaluate to for the condition to succeed.

conditionExpression_condition :: Lens' ConditionExpression Text Source #

A specific condition to apply to a recipe action. For more information, see Recipe structure in the Glue DataBrew Developer Guide.

conditionExpression_targetColumn :: Lens' ConditionExpression Text Source #

A column to apply this condition to.