Struct Size

pub struct Size { /* private fields */ }

The DynamoDB size function. Returns a number representing an attributes size.

See also: Path::size

Implementations

impl Size

pub fn equal<T>(self, right: T) -> Comparison

where T: Into<Operand>,

Check if the value of this operand is equal to the given value.

DynamoDB documentation.

pub fn not_equal<T>(self, right: T) -> Comparison

where T: Into<Operand>,

Check if the value of this operand is not equal to the given value.

DynamoDB documentation.

pub fn greater_than<T>(self, right: T) -> Comparison

where T: Into<Operand>,

Check if the value of this operand is greater than the given value.

DynamoDB documentation.

pub fn greater_than_or_equal<T>(self, right: T) -> Comparison

where T: Into<Operand>,

Check if the value of this operand is greater than or equal to the given value.

DynamoDB documentation.

pub fn less_than<T>(self, right: T) -> Comparison

where T: Into<Operand>,

Check if the value of this operand is less than the given value.

DynamoDB documentation.

pub fn less_than_or_equal<T>(self, right: T) -> Comparison

where T: Into<Operand>,

Check if the value of this operand is less than or equal to the given value.

DynamoDB documentation.

pub fn between<L, U>(self, lower: L, upper: U) -> Between

where L: Into<Operand>, U: Into<Operand>,

The DynamoDB BETWEEN operator. True if self is greater than or equal to lower, and less than or equal to upper.

See also: Path::size, Key::between

use dynamodb_expression::{Num, Path};

let condition = "foo".parse::<Path>()?.size().between(Num::new(512), Num::new(1024));
assert_eq!(r#"size(foo) BETWEEN 512 AND 1024"#, condition.to_string());

pub fn in_<I, T>(self, items: I) -> In

where I: IntoIterator<Item = T>, T: Into<Operand>,

A DynamoDB IN operation. True if the value at this Path is equal to any value in the list.

The list can contain up to 100 values. It must have at least 1.

See also: Path::size

use dynamodb_expression::{Num, Path};

let condition = "foo".parse::<Path>()?.size().in_([10, 20, 30, 40, 50].map(Num::new));
assert_eq!(r#"size(foo) IN (10,20,30,40,50)"#, condition.to_string());

Trait Implementations

impl Clone for Size

fn clone(&self) -> Size

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Size

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

Formats the value using the given formatter.

impl Display for Size

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

Formats the value using the given formatter.

impl<T> From<T> for Size

where T: Into<Path>,

fn from(path: T) -> Self

Converts to this type from the input type.

impl PartialEq for Size

fn eq(&self, other: &Size) -> 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 Eq for Size

impl StructuralPartialEq for Size