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§
source§impl AttributeValue
impl AttributeValue
sourcepub fn as_b(&self) -> Result<&Blob, &Self>
pub fn as_b(&self) -> Result<&Blob, &Self>
sourcepub fn as_bool(&self) -> Result<&bool, &Self>
pub fn as_bool(&self) -> Result<&bool, &Self>
sourcepub fn as_bs(&self) -> Result<&Vec<Blob>, &Self>
pub fn as_bs(&self) -> Result<&Vec<Blob>, &Self>
sourcepub fn as_l(&self) -> Result<&Vec<AttributeValue>, &Self>
pub fn as_l(&self) -> Result<&Vec<AttributeValue>, &Self>
sourcepub fn as_m(&self) -> Result<&HashMap<String, AttributeValue>, &Self>
pub fn as_m(&self) -> Result<&HashMap<String, AttributeValue>, &Self>
sourcepub fn as_n(&self) -> Result<&String, &Self>
pub fn as_n(&self) -> Result<&String, &Self>
sourcepub fn as_ns(&self) -> Result<&Vec<String>, &Self>
pub fn as_ns(&self) -> Result<&Vec<String>, &Self>
sourcepub fn as_null(&self) -> Result<&bool, &Self>
pub fn as_null(&self) -> Result<&bool, &Self>
sourcepub fn as_s(&self) -> Result<&String, &Self>
pub fn as_s(&self) -> Result<&String, &Self>
sourcepub fn as_ss(&self) -> Result<&Vec<String>, &Self>
pub fn as_ss(&self) -> Result<&Vec<String>, &Self>
sourcepub fn is_unknown(&self) -> bool
pub fn is_unknown(&self) -> bool
Returns true if the enum instance is the Unknown
variant.
Trait Implementations§
source§impl Clone for AttributeValue
impl Clone for AttributeValue
source§fn clone(&self) -> AttributeValue
fn clone(&self) -> AttributeValue
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read more