AWSDynamoDBProjection

Objective-C

@interface AWSDynamoDBProjection

Swift

class AWSDynamoDBProjection

Represents attributes that are copied (projected) from the table into an index. These are in addition to the primary key attributes and index key attributes, which are automatically projected.

  • Represents the non-key attribute names which will be projected into the index.

    For local secondary indexes, the total count of NonKeyAttributes summed across all of the local secondary indexes, must not exceed 100. If you project the same attribute into two different indexes, this counts as two distinct attributes when determining the total.

    Declaration

    Objective-C

    @property (nonatomic, strong) NSArray<NSString *> *_Nullable nonKeyAttributes;

    Swift

    var nonKeyAttributes: [String]? { get set }

  • The set of attributes that are projected into the index:

    • KEYS_ONLY - Only the index and primary keys are projected into the index.

    • INCLUDE - In addition to the attributes described in KEYS_ONLY, the secondary index will include other non-key attributes that you specify.

    • ALL - All of the table attributes are projected into the index.

    When using the DynamoDB console, ALL is selected by default.

    Declaration

    Objective-C

    @property (nonatomic) AWSDynamoDBProjectionType projectionType;

    Swift

    var projectionType: AWSDynamoDBProjectionType { get set }