Struct UuidV4Generator 

pub struct UuidV4Generator<Id>(/* private fields */);

Generates ids from a random (v4) UUID.

Examples

use ddd_toolkit_core::adapter::id::UuidV4Generator;
use ddd_toolkit_core::domain::{EntityId, ValueObject};
use ddd_toolkit_core::port::id::IdGenerator;
use std::convert::Infallible;
use std::fmt::Display;

#[derive(Debug, Clone, PartialEq, Eq, Hash, PartialOrd, Ord)]
struct OrderId(uuid::Uuid);

impl ValueObject for OrderId {}

impl Display for OrderId {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        write!(f, "{}", self.0)
    }
}

impl EntityId for OrderId {}

impl TryFrom<uuid::Uuid> for OrderId {
    type Error = Infallible;
    fn try_from(value: uuid::Uuid) -> Result<Self, Self::Error> {
        Ok(Self(value))
    }
}

let generator = UuidV4Generator::<OrderId>::new();

// two calls never collide
assert_ne!(generator.generate(), generator.generate());

Implementations

impl<Id> UuidV4Generator<Id>

pub fn new() -> UuidV4Generator<Id>

Creates a new UuidV4Generator.

Trait Implementations

impl<Id> Clone for UuidV4Generator<Id>

where Id: Clone,

fn clone(&self) -> UuidV4Generator<Id>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<Id> Debug for UuidV4Generator<Id>

where Id: Debug,

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

Formats the value using the given formatter.

impl<Id> Default for UuidV4Generator<Id>

fn default() -> UuidV4Generator<Id>

Returns the “default value” for a type.

impl<Id> IdGenerator<Id> for UuidV4Generator<Id>

where Id: EntityId + TryFrom<Uuid, Error = Infallible>,

fn generate(&self) -> Id

Generates a new id.