Class: Aws::DynamoDB::Types::Update
- Inherits:
-
Struct
- Object
- Struct
- Aws::DynamoDB::Types::Update
- Includes:
- Structure
- Defined in:
- lib/aws-sdk-dynamodb/types.rb
Overview
When making an API call, you may pass Update data as a hash:
{
key: { # required
"AttributeName" => "value", # value <Hash,Array,String,Numeric,Boolean,IO,Set,nil>
},
update_expression: "UpdateExpression", # required
table_name: "TableName", # required
condition_expression: "ConditionExpression",
expression_attribute_names: {
"ExpressionAttributeNameVariable" => "AttributeName",
},
expression_attribute_values: {
"ExpressionAttributeValueVariable" => "value", # value <Hash,Array,String,Numeric,Boolean,IO,Set,nil>
},
return_values_on_condition_check_failure: "ALL_OLD", # accepts ALL_OLD, NONE
}
Represents a request to perform an ‘UpdateItem` operation.
Instance Attribute Summary collapse
-
#condition_expression ⇒ String
A condition that must be satisfied in order for a conditional update to succeed.
-
#expression_attribute_names ⇒ Hash<String,String>
One or more substitution tokens for attribute names in an expression.
-
#expression_attribute_values ⇒ Hash<String,Types::AttributeValue>
One or more values that can be substituted in an expression.
-
#key ⇒ Hash<String,Types::AttributeValue>
The primary key of the item to be updated.
-
#return_values_on_condition_check_failure ⇒ String
Use ‘ReturnValuesOnConditionCheckFailure` to get the item attributes if the `Update` condition fails.
-
#table_name ⇒ String
Name of the table for the ‘UpdateItem` request.
-
#update_expression ⇒ String
An expression that defines one or more attributes to be updated, the action to be performed on them, and new value(s) for them.
Instance Attribute Details
#condition_expression ⇒ String
A condition that must be satisfied in order for a conditional update to succeed.
7325 7326 7327 7328 7329 7330 7331 7332 7333 7334 |
# File 'lib/aws-sdk-dynamodb/types.rb', line 7325 class Update < Struct.new( :key, :update_expression, :table_name, :condition_expression, :expression_attribute_names, :expression_attribute_values, :return_values_on_condition_check_failure) include Aws::Structure end |
#expression_attribute_names ⇒ Hash<String,String>
One or more substitution tokens for attribute names in an expression.
7325 7326 7327 7328 7329 7330 7331 7332 7333 7334 |
# File 'lib/aws-sdk-dynamodb/types.rb', line 7325 class Update < Struct.new( :key, :update_expression, :table_name, :condition_expression, :expression_attribute_names, :expression_attribute_values, :return_values_on_condition_check_failure) include Aws::Structure end |
#expression_attribute_values ⇒ Hash<String,Types::AttributeValue>
One or more values that can be substituted in an expression.
7325 7326 7327 7328 7329 7330 7331 7332 7333 7334 |
# File 'lib/aws-sdk-dynamodb/types.rb', line 7325 class Update < Struct.new( :key, :update_expression, :table_name, :condition_expression, :expression_attribute_names, :expression_attribute_values, :return_values_on_condition_check_failure) include Aws::Structure end |
#key ⇒ Hash<String,Types::AttributeValue>
The primary key of the item to be updated. Each element consists of an attribute name and a value for that attribute.
7325 7326 7327 7328 7329 7330 7331 7332 7333 7334 |
# File 'lib/aws-sdk-dynamodb/types.rb', line 7325 class Update < Struct.new( :key, :update_expression, :table_name, :condition_expression, :expression_attribute_names, :expression_attribute_values, :return_values_on_condition_check_failure) include Aws::Structure end |
#return_values_on_condition_check_failure ⇒ String
Use ‘ReturnValuesOnConditionCheckFailure` to get the item attributes if the `Update` condition fails. For `ReturnValuesOnConditionCheckFailure`, the valid values are: NONE, ALL_OLD, UPDATED_OLD, ALL_NEW, UPDATED_NEW.
7325 7326 7327 7328 7329 7330 7331 7332 7333 7334 |
# File 'lib/aws-sdk-dynamodb/types.rb', line 7325 class Update < Struct.new( :key, :update_expression, :table_name, :condition_expression, :expression_attribute_names, :expression_attribute_values, :return_values_on_condition_check_failure) include Aws::Structure end |
#table_name ⇒ String
Name of the table for the ‘UpdateItem` request.
7325 7326 7327 7328 7329 7330 7331 7332 7333 7334 |
# File 'lib/aws-sdk-dynamodb/types.rb', line 7325 class Update < Struct.new( :key, :update_expression, :table_name, :condition_expression, :expression_attribute_names, :expression_attribute_values, :return_values_on_condition_check_failure) include Aws::Structure end |
#update_expression ⇒ String
An expression that defines one or more attributes to be updated, the action to be performed on them, and new value(s) for them.
7325 7326 7327 7328 7329 7330 7331 7332 7333 7334 |
# File 'lib/aws-sdk-dynamodb/types.rb', line 7325 class Update < Struct.new( :key, :update_expression, :table_name, :condition_expression, :expression_attribute_names, :expression_attribute_values, :return_values_on_condition_check_failure) include Aws::Structure end |