Struct aws_sdk_dynamodb::model::Update
source · [−]#[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
sourceimpl Update
impl Update
sourcepub fn key(&self) -> Option<&HashMap<String, AttributeValue>>
pub fn key(&self) -> 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.
sourcepub fn update_expression(&self) -> Option<&str>
pub fn update_expression(&self) -> Option<&str>
An expression that defines one or more attributes to be updated, the action to be performed on them, and new value(s) for them.
sourcepub fn table_name(&self) -> Option<&str>
pub fn table_name(&self) -> Option<&str>
Name of the table for the UpdateItem
request.
sourcepub fn condition_expression(&self) -> Option<&str>
pub fn condition_expression(&self) -> Option<&str>
A condition that must be satisfied in order for a conditional update to succeed.
sourcepub fn expression_attribute_names(&self) -> Option<&HashMap<String, String>>
pub fn expression_attribute_names(&self) -> Option<&HashMap<String, String>>
One or more substitution tokens for attribute names in an expression.
sourcepub fn expression_attribute_values(
&self
) -> Option<&HashMap<String, AttributeValue>>
pub fn expression_attribute_values(
&self
) -> Option<&HashMap<String, AttributeValue>>
One or more values that can be substituted in an expression.
sourcepub 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
impl StructuralPartialEq for Update
Auto Trait Implementations
impl RefUnwindSafe for Update
impl Send for Update
impl Sync for Update
impl Unpin for Update
impl UnwindSafe for Update
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
sourcefn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcefn clone_into(&self, target: &mut T)
fn clone_into(&self, target: &mut T)
toowned_clone_into
)Uses borrowed data to replace owned data, usually by cloning. Read more
sourceimpl<T> WithSubscriber for T
impl<T> WithSubscriber for T
sourcefn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
sourcefn with_current_subscriber(self) -> WithDispatch<Self>
fn with_current_subscriber(self) -> WithDispatch<Self>
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more