Struct aws_sdk_dynamodb::model::ConditionCheck
source · [−]#[non_exhaustive]pub struct ConditionCheck {
pub key: Option<HashMap<String, AttributeValue>>,
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 a check that an item exists or to check the condition of specific attributes of the item.
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 checked. Each element consists of an attribute name and a value for that attribute.
table_name: Option<String>
Name of the table for the check item 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 ConditionCheck
condition fails. For ReturnValuesOnConditionCheckFailure
, the valid values are: NONE and ALL_OLD.
Implementations
sourceimpl ConditionCheck
impl ConditionCheck
sourcepub fn key(&self) -> Option<&HashMap<String, AttributeValue>>
pub fn key(&self) -> Option<&HashMap<String, AttributeValue>>
The primary key of the item to be checked. Each element consists of an attribute name and a value for that attribute.
sourcepub fn table_name(&self) -> Option<&str>
pub fn table_name(&self) -> Option<&str>
Name of the table for the check item 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 ConditionCheck
condition fails. For ReturnValuesOnConditionCheckFailure
, the valid values are: NONE and ALL_OLD.
sourceimpl ConditionCheck
impl ConditionCheck
sourcepub fn builder() -> Builder
pub fn builder() -> Builder
Creates a new builder-style object to manufacture ConditionCheck
Trait Implementations
sourceimpl Clone for ConditionCheck
impl Clone for ConditionCheck
sourcefn clone(&self) -> ConditionCheck
fn clone(&self) -> ConditionCheck
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
sourceimpl Debug for ConditionCheck
impl Debug for ConditionCheck
sourceimpl PartialEq<ConditionCheck> for ConditionCheck
impl PartialEq<ConditionCheck> for ConditionCheck
sourcefn eq(&self, other: &ConditionCheck) -> bool
fn eq(&self, other: &ConditionCheck) -> bool
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
sourcefn ne(&self, other: &ConditionCheck) -> bool
fn ne(&self, other: &ConditionCheck) -> bool
This method tests for !=
.
impl StructuralPartialEq for ConditionCheck
Auto Trait Implementations
impl RefUnwindSafe for ConditionCheck
impl Send for ConditionCheck
impl Sync for ConditionCheck
impl Unpin for ConditionCheck
impl UnwindSafe for ConditionCheck
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