Copyright	(c) 2013-2023 Brendan Hay
License	Mozilla Public License, v. 2.0.
Maintainer	Brendan Hay
Stability	auto-generated
Portability	non-portable (GHC extensions)
Safe Haskell	Safe-Inferred
Language	Haskell2010

Amazonka.EMR.Types.KeyValue

Description

Synopsis

data KeyValue = KeyValue' {
- key :: Maybe Text
- value :: Maybe Text
}
newKeyValue :: KeyValue
keyValue_key :: Lens' KeyValue (Maybe Text)
keyValue_value :: Lens' KeyValue (Maybe Text)

Documentation

data KeyValue Source #

A key-value pair.

See: newKeyValue smart constructor.

Constructors

KeyValue'
Fields key :: Maybe Text The unique identifier of a key-value pair. value :: Maybe Text The value part of the identified key.

Instances

Instances details

ToJSON KeyValue Source #
Instance details Defined in Amazonka.EMR.Types.KeyValue Methods toJSON :: KeyValue -> Value # toEncoding :: KeyValue -> Encoding # toJSONList :: [KeyValue] -> Value # toEncodingList :: [KeyValue] -> Encoding #
Generic KeyValue Source #
Instance details Defined in Amazonka.EMR.Types.KeyValue Associated Types type Rep KeyValue :: Type -> Type # Methods from :: KeyValue -> Rep KeyValue x # to :: Rep KeyValue x -> KeyValue #
Read KeyValue Source #
Instance details Defined in Amazonka.EMR.Types.KeyValue Methods readsPrec :: Int -> ReadS KeyValue # readList :: ReadS [KeyValue] # readPrec :: ReadPrec KeyValue # readListPrec :: ReadPrec [KeyValue] #
Show KeyValue Source #
Instance details Defined in Amazonka.EMR.Types.KeyValue Methods showsPrec :: Int -> KeyValue -> ShowS # show :: KeyValue -> String # showList :: [KeyValue] -> ShowS #
NFData KeyValue Source #
Instance details Defined in Amazonka.EMR.Types.KeyValue Methods rnf :: KeyValue -> () #
Eq KeyValue Source #
Instance details Defined in Amazonka.EMR.Types.KeyValue Methods (==) :: KeyValue -> KeyValue -> Bool # (/=) :: KeyValue -> KeyValue -> Bool #
Hashable KeyValue Source #
Instance details Defined in Amazonka.EMR.Types.KeyValue Methods hashWithSalt :: Int -> KeyValue -> Int # hash :: KeyValue -> Int #
type Rep KeyValue Source #
Instance details Defined in Amazonka.EMR.Types.KeyValue type Rep KeyValue = D1 ('MetaData "KeyValue" "Amazonka.EMR.Types.KeyValue" "amazonka-emr-2.0-B3cWhP6sdymF3IBUMdPGcd" 'False) (C1 ('MetaCons "KeyValue'" 'PrefixI 'True) (S1 ('MetaSel ('Just "key") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Text)) :*: S1 ('MetaSel ('Just "value") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Text))))

newKeyValue :: KeyValue Source #

Create a value of KeyValue 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:key:KeyValue', keyValue_key - The unique identifier of a key-value pair.

$sel:value:KeyValue', keyValue_value - The value part of the identified key.

keyValue_key :: Lens' KeyValue (Maybe Text) Source #

The unique identifier of a key-value pair.

keyValue_value :: Lens' KeyValue (Maybe Text) Source #

The value part of the identified key.