Struct FixedIdGenerator 

pub struct FixedIdGenerator<Id>(pub Id);

An IdGenerator that always returns the same, fixed id.

Examples

use ddd_toolkit_core::domain::{EntityId, ValueObject};
use ddd_toolkit_core::mock::id::FixedIdGenerator;
use ddd_toolkit_core::port::id::IdGenerator;
use std::fmt::Display;

#[derive(Debug, Clone, PartialEq, Eq, Hash, PartialOrd, Ord)]
struct OrderId(u32);

impl ValueObject for OrderId {}

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

impl EntityId for OrderId {}

// useful in a test that needs a predictable id to assert against
let generator = FixedIdGenerator(OrderId(1));

assert_eq!(generator.generate(), OrderId(1));
assert_eq!(generator.generate(), OrderId(1));

Tuple Fields

0: Id

Trait Implementations

impl<Id> Clone for FixedIdGenerator<Id>

where Id: Clone,

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<Id> Debug for FixedIdGenerator<Id>

where Id: Debug,

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

Formats the value using the given formatter.

impl<Id> IdGenerator<Id> for FixedIdGenerator<Id>

where Id: EntityId,

fn generate(&self) -> Id

Generates a new id.