qubit-mixin 0.1.0

Trait mixins for domain objects, providing common properties and behaviors
Documentation 
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////////////////////////////////////////////////////////////////////////////////
//
//  Copyright (C) 2025 Haixing Hu
//
//  This program is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program. If not, see <https://www.gnu.org/licenses/>.
//
////////////////////////////////////////////////////////////////////////////////

//! Traits for username property functionality
//!
//! # Author
//!
//! Haixing Hu

/// A trait indicating that an entity class has a username property
///
/// This trait provides access and setting functionality for the username
/// of domain objects.
///
/// # Author
///
/// Haixing Hu
pub trait WithUsername {
    /// Gets the username of the current object
    ///
    /// # Returns
    ///
    /// The username of the current object
    fn username(&self) -> &str;

    /// Sets the username of the current object
    ///
    /// # Parameters
    ///
    /// * `username` - The new username to be set
    fn set_username(&mut self, username: &str);
}