Struct Add

pub struct Add { /* private fields */ }

Represents an ADD statement in a DynamoDB update expression.

Prefer Path::add over this.

See also: Update, Set

Implementations

impl Add

pub fn new<N, V>(path: N, value: V) -> Self

where N: Into<Path>, V: Into<AddValue>,

Creates an Add for the specified Path and value.

Prefer Path::add over this.

pub fn and<T>(self, other: T) -> Update

where T: Into<Update>,

Add an additional Update statement to this ADD statement.

use dynamodb_expression::{Num, Path};

let update = "foo"
    .parse::<Path>()?
    .add(Num::new(7))
    .and("bar".parse::<Path>()?.set("a value"))
    .and("baz".parse::<Path>()?.remove());
assert_eq!(r#"SET bar = "a value" REMOVE baz ADD foo 7"#, update.to_string());

Trait Implementations

impl Clone for Add

fn clone(&self) -> Add

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Add

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

Formats the value using the given formatter.

impl Display for Add

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

Formats the value using the given formatter.

impl From<Add> for Update

fn from(value: Add) -> Self

Converts to this type from the input type.

impl From<AddAction> for Add

fn from(action: AddAction) -> Self

Converts to this type from the input type.

impl PartialEq for Add

fn eq(&self, other: &Add) -> 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 Add

impl StructuralPartialEq for Add