Struct dynamodb_expression::operand::Operand

pub struct Operand { /* private fields */ }

Represents a part of a DynamoDB comparison.

You can use Operand::from to construct an instance from any of these:

• Path
• Element
• Name
• IndexedField
• Scalar
• Ref
• Condition (as well as Box<Condition>)
• Size

Implementations

impl Operand

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

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) -> Condition

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) -> Condition

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) -> Condition

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) -> Condition

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) -> Condition

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) -> Condition

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

self BETWEEN b AND c - true if self is greater than or equal to b, and less than or equal to c.

DynamoDB documentation

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

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

self IN (b[, ..]) — true if self is equal to any value in the list.

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

DynamoDB documentation

Trait Implementations

impl Clone for Operand

fn clone(&self) -> Operand

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Operand

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

Formats the value using the given formatter.

impl Display for Operand

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

Formats the value using the given formatter.

impl<T> From<T> for Operand

where T: Into<OperandType>,

fn from(op: T) -> Self

Converts to this type from the input type.

impl PartialEq for Operand

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl Eq for Operand

impl StructuralEq for Operand

impl StructuralPartialEq for Operand