KeySchemaElement class
Represents a single element of a key schema. A key schema specifies the attributes that make up the primary key of a table, or the key attributes of an index.
A KeySchemaElement represents exactly one attribute of the
primary key. For example, a simple primary key would be represented by one
KeySchemaElement (for the partition key). A composite primary
key would require one KeySchemaElement for the partition key,
and another KeySchemaElement for the sort key.
A KeySchemaElement must be a scalar, top-level attribute (not a
nested attribute). The data type must be one of String, Number, or Binary.
The attribute cannot be nested within a List or a Map.
Constructors
- KeySchemaElement({required String attributeName, required KeyType keyType})
-
KeySchemaElement.fromJson(Map<
String, dynamic> json) -
factory
Properties
- attributeName → String
-
The name of a key attribute.
final
- hashCode → int
-
The hash code for this object.
no setterinherited
- keyType → KeyType
-
The role that this key attribute will assume:
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
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