[−][src]Struct rusoto_sdb::UpdateCondition
Specifies the conditions under which data should be updated. If an update condition is specified for a request, the data will only be updated if the condition is satisfied. For example, if an attribute with a specific name and value exists, or if a specific attribute doesn't exist.
Fields
exists: Option<bool>
A value specifying whether or not the specified attribute must exist with the specified value in order for the update condition to be satisfied. Specify true
if the attribute must exist for the update condition to be satisfied. Specify false
if the attribute should not exist in order for the update condition to be satisfied.
name: Option<String>
The name of the attribute involved in the condition.
value: Option<String>
The value of an attribute. This value can only be specified when the Exists
parameter is equal to true
.
Trait Implementations
impl Clone for UpdateCondition
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impl Clone for UpdateCondition
fn clone(&self) -> UpdateCondition
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fn clone(&self) -> UpdateCondition
Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
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fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
impl Default for UpdateCondition
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impl Default for UpdateCondition
fn default() -> UpdateCondition
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fn default() -> UpdateCondition
Returns the "default value" for a type. Read more
impl PartialEq<UpdateCondition> for UpdateCondition
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impl PartialEq<UpdateCondition> for UpdateCondition
fn eq(&self, other: &UpdateCondition) -> bool
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fn eq(&self, other: &UpdateCondition) -> bool
This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, other: &UpdateCondition) -> bool
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fn ne(&self, other: &UpdateCondition) -> bool
This method tests for !=
.
impl Debug for UpdateCondition
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impl Debug for UpdateCondition
Auto Trait Implementations
impl Send for UpdateCondition
impl Send for UpdateCondition
impl Sync for UpdateCondition
impl Sync for UpdateCondition
Blanket Implementations
impl<T> From for T
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impl<T> From for T
impl<T, U> Into for T where
U: From<T>,
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impl<T, U> Into for T where
U: From<T>,
impl<T> ToOwned for T where
T: Clone,
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impl<T> ToOwned for T where
T: Clone,
type Owned = T
fn to_owned(&self) -> T
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fn to_owned(&self) -> T
Creates owned data from borrowed data, usually by cloning. Read more
fn clone_into(&self, target: &mut T)
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fn clone_into(&self, target: &mut T)
🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more
impl<T, U> TryFrom for T where
T: From<U>,
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impl<T, U> TryFrom for T where
T: From<U>,
type Error = !
try_from
)The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
try_from
)Performs the conversion.
impl<T> Borrow for T where
T: ?Sized,
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impl<T> Borrow for T where
T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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impl<T> Any for T where
T: 'static + ?Sized,
fn get_type_id(&self) -> TypeId
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fn get_type_id(&self) -> TypeId
🔬 This is a nightly-only experimental API. (get_type_id
)
this method will likely be replaced by an associated static
Gets the TypeId
of self
. Read more
impl<T, U> TryInto for T where
U: TryFrom<T>,
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impl<T, U> TryInto for T where
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
try_from
)The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
try_from
)Performs the conversion.
impl<T> BorrowMut for T where
T: ?Sized,
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impl<T> BorrowMut for T where
T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<T> Erased for T
impl<T> Erased for T
impl<T> Same for T
impl<T> Same for T
type Output = T
Should always be Self