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.
Inheritance Hierarchy
Namespace: Amazon.DynamoDBv2.Model
Assembly: AWSSDK.dll
Version: (assembly version)
Syntax
public class KeySchemaElement : Object
The KeySchemaElement type exposes the following members
Constructors
| Name | Description | |
|---|---|---|
|
KeySchemaElement() | Empty constructor used to set properties independently even when a simple constructor is available |
|
|
KeySchemaElement(string, KeyType) | Instantiates KeySchemaElement with the parameterized properties |
Properties
| Name | Type | Description | |
|---|---|---|---|
|
|
AttributeName | System.String |
Gets and sets the property AttributeName.
The name of a key attribute. |
|
|
KeyType | Amazon.DynamoDBv2.KeyType |
Gets and sets the property KeyType.
The role that this key attribute will assume:
The partition key of an item is also known as its hash attribute. The term "hash attribute" derives from DynamoDB' usage of an internal hash function to evenly distribute data items across partitions, based on their partition key values. The sort key of an item is also known as its range attribute. The term "range attribute" derives from the way DynamoDB stores items with the same partition key physically close together, in sorted order by the sort key value. |
Version Information
.NET Framework:
Supported in: 4.5, 4.0, 3.5
.NET for Windows Store apps:
Supported in: Windows 8.1, Windows 8
.NET for Windows Phone:
Supported in: Windows Phone 8.1, Windows Phone 8