Enum aws_sdk_dynamodb::model::AttributeValue
source · [−]#[non_exhaustive]
pub enum AttributeValue {
B(Blob),
Bool(bool),
Bs(Vec<Blob>),
L(Vec<AttributeValue>),
M(HashMap<String, AttributeValue>),
N(String),
Ns(Vec<String>),
Null(bool),
S(String),
Ss(Vec<String>),
Unknown,
}
Expand description
Represents the data for an attribute.
Each attribute value is described as a name-value pair. The name is the data type, and the value is the data itself.
For more information, see Data Types in the Amazon DynamoDB Developer Guide.
Variants (Non-exhaustive)
This enum is marked as non-exhaustive
B(Blob)
An attribute of type Binary. For example:
"B": "dGhpcyB0ZXh0IGlzIGJhc2U2NC1lbmNvZGVk"
Bool(bool)
An attribute of type Boolean. For example:
"BOOL": true
Bs(Vec<Blob>)
An attribute of type Binary Set. For example:
"BS": ["U3Vubnk=", "UmFpbnk=", "U25vd3k="]
L(Vec<AttributeValue>)
An attribute of type List. For example:
"L": [ {"S": "Cookies"} , {"S": "Coffee"}, {"N", "3.14159"}]
M(HashMap<String, AttributeValue>)
An attribute of type Map. For example:
"M": {"Name": {"S": "Joe"}, "Age": {"N": "35"}}
N(String)
An attribute of type Number. For example:
"N": "123.45"
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
Ns(Vec<String>)
An attribute of type Number Set. For example:
"NS": ["42.2", "-19", "7.5", "3.14"]
Numbers are sent across the network to DynamoDB as strings, to maximize compatibility across languages and libraries. However, DynamoDB treats them as number type attributes for mathematical operations.
Null(bool)
An attribute of type Null. For example:
"NULL": true
S(String)
An attribute of type String. For example:
"S": "Hello"
Ss(Vec<String>)
An attribute of type String Set. For example:
"SS": ["Giraffe", "Hippo" ,"Zebra"]
Unknown
The Unknown
variant represents cases where new union variant was received. Consider upgrading the SDK to the latest available version.
An unknown enum variant
Note: If you encounter this error, consider upgrading your SDK to the latest version.
The Unknown
variant represents cases where the server sent a value that wasn’t recognized
by the client. This can happen when the server adds new functionality, but the client has not been updated.
To investigate this, consider turning on debug logging to print the raw HTTP response.
Implementations
sourceimpl AttributeValue
impl AttributeValue
sourcepub fn is_unknown(&self) -> bool
pub fn is_unknown(&self) -> bool
Returns true if the enum instance is the Unknown
variant.
Trait Implementations
sourceimpl Clone for AttributeValue
impl Clone for AttributeValue
sourcefn clone(&self) -> AttributeValue
fn clone(&self) -> AttributeValue
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 AttributeValue
impl Debug for AttributeValue
sourceimpl PartialEq<AttributeValue> for AttributeValue
impl PartialEq<AttributeValue> for AttributeValue
sourcefn eq(&self, other: &AttributeValue) -> bool
fn eq(&self, other: &AttributeValue) -> bool
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
sourcefn ne(&self, other: &AttributeValue) -> bool
fn ne(&self, other: &AttributeValue) -> bool
This method tests for !=
.
impl StructuralPartialEq for AttributeValue
Auto Trait Implementations
impl RefUnwindSafe for AttributeValue
impl Send for AttributeValue
impl Sync for AttributeValue
impl Unpin for AttributeValue
impl UnwindSafe for AttributeValue
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