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.Glue.Types.Mapping

Description

Synopsis

data Mapping = Mapping' {
- children :: Maybe [Mapping]
- dropped :: Maybe Bool
- fromPath :: Maybe [Text]
- fromType :: Maybe Text
- toKey :: Maybe Text
- toType :: Maybe Text
}
newMapping :: Mapping
mapping_children :: Lens' Mapping (Maybe [Mapping])
mapping_dropped :: Lens' Mapping (Maybe Bool)
mapping_fromPath :: Lens' Mapping (Maybe [Text])
mapping_fromType :: Lens' Mapping (Maybe Text)
mapping_toKey :: Lens' Mapping (Maybe Text)
mapping_toType :: Lens' Mapping (Maybe Text)

Documentation

data Mapping Source #

Specifies the mapping of data property keys.

See: newMapping smart constructor.

Constructors

Mapping'

Fields

children :: Maybe [Mapping]

Only applicable to nested data structures. If you want to change the parent structure, but also one of its children, you can fill out this data strucutre. It is also Mapping, but its FromPath will be the parent's FromPath plus the FromPath from this structure.

For the children part, suppose you have the structure:

{ "FromPath": "OuterStructure", "ToKey": "OuterStructure", "ToType": "Struct", "Dropped": false, "Chidlren": [{ "FromPath": "inner", "ToKey": "inner", "ToType": "Double", "Dropped": false, }] }

You can specify a Mapping that looks like:

{ "FromPath": "OuterStructure", "ToKey": "OuterStructure", "ToType": "Struct", "Dropped": false, "Chidlren": [{ "FromPath": "inner", "ToKey": "inner", "ToType": "Double", "Dropped": false, }] }

dropped :: Maybe Bool
If true, then the column is removed.
fromPath :: Maybe [Text]
The table or column to be modified.
fromType :: Maybe Text
The type of the data to be modified.
toKey :: Maybe Text
After the apply mapping, what the name of the column should be. Can be the same as FromPath.
toType :: Maybe Text
The data type that the data is to be modified to.

Instances

Instances details

FromJSON Mapping Source #
Instance details Defined in Amazonka.Glue.Types.Mapping Methods parseJSON :: Value -> Parser Mapping # parseJSONList :: Value -> Parser [Mapping] #
ToJSON Mapping Source #
Instance details Defined in Amazonka.Glue.Types.Mapping Methods toJSON :: Mapping -> Value # toEncoding :: Mapping -> Encoding # toJSONList :: [Mapping] -> Value # toEncodingList :: [Mapping] -> Encoding #
Generic Mapping Source #
Instance details Defined in Amazonka.Glue.Types.Mapping Associated Types type Rep Mapping :: Type -> Type # Methods from :: Mapping -> Rep Mapping x # to :: Rep Mapping x -> Mapping #
Read Mapping Source #
Instance details Defined in Amazonka.Glue.Types.Mapping Methods readsPrec :: Int -> ReadS Mapping # readList :: ReadS [Mapping] # readPrec :: ReadPrec Mapping # readListPrec :: ReadPrec [Mapping] #
Show Mapping Source #
Instance details Defined in Amazonka.Glue.Types.Mapping Methods showsPrec :: Int -> Mapping -> ShowS # show :: Mapping -> String # showList :: [Mapping] -> ShowS #
NFData Mapping Source #
Instance details Defined in Amazonka.Glue.Types.Mapping Methods rnf :: Mapping -> () #
Eq Mapping Source #
Instance details Defined in Amazonka.Glue.Types.Mapping Methods (==) :: Mapping -> Mapping -> Bool # (/=) :: Mapping -> Mapping -> Bool #
Hashable Mapping Source #
Instance details Defined in Amazonka.Glue.Types.Mapping Methods hashWithSalt :: Int -> Mapping -> Int # hash :: Mapping -> Int #
type Rep Mapping Source #
Instance details Defined in Amazonka.Glue.Types.Mapping type Rep Mapping = D1 ('MetaData "Mapping" "Amazonka.Glue.Types.Mapping" "amazonka-glue-2.0-7miPWwBHdfn8N8SvbpLgE0" 'False) (C1 ('MetaCons "Mapping'" 'PrefixI 'True) ((S1 ('MetaSel ('Just "children") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe [Mapping])) :: (S1 ('MetaSel ('Just "dropped") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Bool)) :: S1 ('MetaSel ('Just "fromPath") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe [Text])))) :: (S1 ('MetaSel ('Just "fromType") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Text)) :: (S1 ('MetaSel ('Just "toKey") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Text)) :*: S1 ('MetaSel ('Just "toType") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedStrict) (Rec0 (Maybe Text))))))

newMapping :: Mapping Source #

Create a value of Mapping 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:children:Mapping', mapping_children - Only applicable to nested data structures. If you want to change the parent structure, but also one of its children, you can fill out this data strucutre. It is also Mapping, but its FromPath will be the parent's FromPath plus the FromPath from this structure.

For the children part, suppose you have the structure:

{ "FromPath": "OuterStructure", "ToKey": "OuterStructure", "ToType": "Struct", "Dropped": false, "Chidlren": [{ "FromPath": "inner", "ToKey": "inner", "ToType": "Double", "Dropped": false, }] }

You can specify a Mapping that looks like:

{ "FromPath": "OuterStructure", "ToKey": "OuterStructure", "ToType": "Struct", "Dropped": false, "Chidlren": [{ "FromPath": "inner", "ToKey": "inner", "ToType": "Double", "Dropped": false, }] }

$sel:dropped:Mapping', mapping_dropped - If true, then the column is removed.

$sel:fromPath:Mapping', mapping_fromPath - The table or column to be modified.

$sel:fromType:Mapping', mapping_fromType - The type of the data to be modified.

$sel:toKey:Mapping', mapping_toKey - After the apply mapping, what the name of the column should be. Can be the same as FromPath.

$sel:toType:Mapping', mapping_toType - The data type that the data is to be modified to.

mapping_children :: Lens' Mapping (Maybe [Mapping]) Source #

Only applicable to nested data structures. If you want to change the parent structure, but also one of its children, you can fill out this data strucutre. It is also Mapping, but its FromPath will be the parent's FromPath plus the FromPath from this structure.

For the children part, suppose you have the structure:

{ "FromPath": "OuterStructure", "ToKey": "OuterStructure", "ToType": "Struct", "Dropped": false, "Chidlren": [{ "FromPath": "inner", "ToKey": "inner", "ToType": "Double", "Dropped": false, }] }

You can specify a Mapping that looks like:

{ "FromPath": "OuterStructure", "ToKey": "OuterStructure", "ToType": "Struct", "Dropped": false, "Chidlren": [{ "FromPath": "inner", "ToKey": "inner", "ToType": "Double", "Dropped": false, }] }

mapping_dropped :: Lens' Mapping (Maybe Bool) Source #

If true, then the column is removed.

mapping_fromPath :: Lens' Mapping (Maybe [Text]) Source #

The table or column to be modified.

mapping_fromType :: Lens' Mapping (Maybe Text) Source #

The type of the data to be modified.

mapping_toKey :: Lens' Mapping (Maybe Text) Source #

After the apply mapping, what the name of the column should be. Can be the same as FromPath.

mapping_toType :: Lens' Mapping (Maybe Text) Source #

The data type that the data is to be modified to.