AWSDynamoDBConditionCheck Class Reference

Inherits from AWSModel : AWSMTLModel
Declared in AWSDynamoDBModel.h
AWSDynamoDBModel.m

Overview

Represents a request to perform a check that an item exists or to check the condition of specific attributes of the item..

Required parameters: [Key, TableName, ConditionExpression]

  conditionExpression

A condition that must be satisfied in order for a conditional update to succeed.

@property (nonatomic, strong) NSString *conditionExpression

Declared In

AWSDynamoDBModel.h

  expressionAttributeNames

One or more substitution tokens for attribute names in an expression.

@property (nonatomic, strong) NSDictionary<NSString*NSString*> *expressionAttributeNames

Declared In

AWSDynamoDBModel.h

  expressionAttributeValues

One or more values that can be substituted in an expression.

@property (nonatomic, strong) NSDictionary<NSString*AWSDynamoDBAttributeValue*> *expressionAttributeValues

Declared In

AWSDynamoDBModel.h

  key

The primary key of the item to be checked. Each element consists of an attribute name and a value for that attribute.

@property (nonatomic, strong) NSDictionary<NSString*AWSDynamoDBAttributeValue*> *key

Declared In

AWSDynamoDBModel.h

  returnValuesOnConditionCheckFailure

Use ReturnValuesOnConditionCheckFailure to get the item attributes if the ConditionCheck condition fails. For ReturnValuesOnConditionCheckFailure, the valid values are: NONE and ALL_OLD.

@property (nonatomic, assign) AWSDynamoDBReturnValuesOnConditionCheckFailure returnValuesOnConditionCheckFailure

Declared In

AWSDynamoDBModel.h

  tableName

Name of the table for the check item request.

@property (nonatomic, strong) NSString *tableName

Declared In

AWSDynamoDBModel.h