Struct Num

pub struct Num { /* private fields */ }

A DynamoDB numeric value.

See also: Scalar::new_num, Value::new_num, Scalar::new_num_lower_exp, Value::new_num_lower_exp, Scalar::new_num_upper_exp, Value::new_num_upper_exp

Examples

use dynamodb_expression::value::Num;

let value = Num::new(2600);
assert_eq!("2600", value.to_string());

let value = Num::new_lower_exp(2600);
assert_eq!("2.6e3", value.to_string());

let value = Num::new_upper_exp(2600);
assert_eq!("2.6E3", value.to_string());

let value = Num::new(2600.0);
assert_eq!("2600", value.to_string());

let value = Num::new_lower_exp(2600.0);
assert_eq!("2.6e3", value.to_string());

let value = Num::new_upper_exp(2600.0);
assert_eq!("2.6E3", value.to_string());

Implementations

impl Num

pub fn new<T>(value: T) -> Self

where T: ToString + Num,

Creates a DynamoDB numeric value.

See also: Num::new_lower_exp, Num::new_upper_exp, Scalar::new_num, Value::new_num

Examples

use dynamodb_expression::value::Num;

let value = Num::new(2600);
assert_eq!("2600", value.to_string());

let value = Num::new(2600.0);
assert_eq!("2600", value.to_string());

pub fn new_lower_exp<T>(value: T) -> Self

where T: LowerExp + Num,

Creates a DynamoDB numeric value.

See also: Num::new, Num::new_upper_exp, Scalar::new_num_lower_exp, Value::new_num_lower_exp

Examples

use dynamodb_expression::value::Num;

let value = Num::new_lower_exp(2600);
assert_eq!("2.6e3", value.to_string());

let value = Num::new_lower_exp(2600.0);
assert_eq!("2.6e3", value.to_string());

pub fn new_upper_exp<T>(value: T) -> Self

where T: UpperExp + Num,

Creates a DynamoDB numeric value.

See also: Num::new, Num::new_lower_exp, Scalar::new_num_upper_exp, Value::new_num_upper_exp

Examples

use dynamodb_expression::value::Num;

let value = Num::new_upper_exp(2600);
assert_eq!("2.6E3", value.to_string());

let value = Num::new_upper_exp(2600.0);
assert_eq!("2.6E3", value.to_string());

Trait Implementations

impl Clone for Num

fn clone(&self) -> Num

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Num

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Num

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<Num> for AddValue

fn from(value: Num) -> Self

Converts to this type from the input type.

impl From<Num> for Scalar

fn from(value: Num) -> Self

Converts to this type from the input type.

impl From<Num> for String

fn from(num: Num) -> Self

Converts to this type from the input type.

impl From<Num> for Value

fn from(value: Num) -> Self

Converts to this type from the input type.

impl<T> From<T> for Num

where T: ToString + Num,

fn from(num: T) -> Self

Converts to this type from the input type.

impl Hash for Num

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Num

fn cmp(&self, other: &Num) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Num

fn eq(&self, other: &Num) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Num

fn partial_cmp(&self, other: &Num) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for Num

impl StructuralPartialEq for Num