Crate unique_id

A trait and implementations for unique ID generators.

This crate provides three simple traits, starting with Generator. This will return successive unique identifiers. Two implementations of this trait are provided which provide unique string and integer values respectively.

Example

The following shows an example of the StringGenerator implementation.

use unique_id::Generator;
use unique_id::string::StringGenerator;

let gen = StringGenerator::default();
let mut last = gen.next_id();
for _ in 1..100_000 {
    let next = gen.next_id();
    assert_ne!(last, next);
    last = next;
}

Changes

Version 0.1.0

• Simple traits Generator, GeneratorWithInvalid, and GeneratorFromStr.
• StringGenerator using UUIDs
• SequenceGenerator using i64

TODO

1. Allow for seeding
2. Decide on FromStr support