OpenXJsonSerDe class

The OpenX SerDe. Used by Kinesis Data Firehose for deserializing data, which means converting it from the JSON format in preparation for serializing it to the Parquet or ORC format. This is one of two deserializers you can choose, depending on which one offers the functionality you need. The other option is the native Hive / HCatalog JsonSerDe.

Constructors

OpenXJsonSerDe({bool? caseInsensitive, Map<String, String>? columnToJsonKeyMappings, bool? convertDotsInJsonKeysToUnderscores})

OpenXJsonSerDe.fromJson(Map<String, dynamic> json)

factory

Properties

caseInsensitive → bool?

When set to true, which is the default, Kinesis Data Firehose converts JSON keys to lowercase before deserializing them.

final

columnToJsonKeyMappings → Map<String, String>?

Maps column names to JSON keys that aren't identical to the column names. This is useful when the JSON contains keys that are Hive keywords. For example, timestamp is a Hive keyword. If you have a JSON key named timestamp, set this parameter to {"ts": "timestamp"} to map this key to a column named ts.

final

convertDotsInJsonKeysToUnderscores → bool?

When set to true, specifies that the names of the keys include dots and that you want Kinesis Data Firehose to replace them with underscores. This is useful because Apache Hive does not allow dots in column names. For example, if the JSON contains a key whose name is "a.b", you can define the column name to be "a_b" when using this option.

final

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toJson() → Map<String, dynamic>

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited