Struct aws_sdk_dynamodb::model::Update [−][src]
#[non_exhaustive]pub struct Update {
pub key: Option<HashMap<String, AttributeValue>>,
pub update_expression: Option<String>,
pub table_name: Option<String>,
pub condition_expression: Option<String>,
pub expression_attribute_names: Option<HashMap<String, String>>,
pub expression_attribute_values: Option<HashMap<String, AttributeValue>>,
pub return_values_on_condition_check_failure: Option<ReturnValuesOnConditionCheckFailure>,
}
Expand description
Represents a request to perform an UpdateItem
operation.
Fields (Non-exhaustive)
This struct is marked as non-exhaustive
Struct { .. }
syntax; cannot be matched against without a wildcard ..
; and struct update syntax will not work.key: Option<HashMap<String, AttributeValue>>
The primary key of the item to be updated. Each element consists of an attribute name and a value for that attribute.
update_expression: Option<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.
table_name: Option<String>
Name of the table for the UpdateItem
request.
condition_expression: Option<String>
A condition that must be satisfied in order for a conditional update to succeed.
expression_attribute_names: Option<HashMap<String, String>>
One or more substitution tokens for attribute names in an expression.
expression_attribute_values: Option<HashMap<String, AttributeValue>>
One or more values that can be substituted in an expression.
return_values_on_condition_check_failure: Option<ReturnValuesOnConditionCheckFailure>
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.
Implementations
The primary key of the item to be updated. Each element consists of an attribute name and a value for that attribute.
An expression that defines one or more attributes to be updated, the action to be performed on them, and new value(s) for them.
Name of the table for the UpdateItem
request.
A condition that must be satisfied in order for a conditional update to succeed.
One or more substitution tokens for attribute names in an expression.
One or more values that can be substituted in an expression.
pub fn return_values_on_condition_check_failure(
&self
) -> Option<&ReturnValuesOnConditionCheckFailure>
pub fn return_values_on_condition_check_failure(
&self
) -> Option<&ReturnValuesOnConditionCheckFailure>
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.
Trait Implementations
Auto Trait Implementations
impl RefUnwindSafe for Update
impl UnwindSafe for Update
Blanket Implementations
Mutably borrows from an owned value. Read more
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more