Struct BeanContainer

Source

pub struct BeanContainer { /* private fields */ }

Implementations§

Source §

impl BeanContainer

Source

pub fn new() -> Self

Examples found in repository ?

examples/basic.rs (line 59)

57fn main() -> Result<(), String> {
58    // Create container
59    let container = BeanContainer::new();
60
61    // Register Database (Singleton)
62    container.register::<Database, _>(Scope::Singleton, |_deps| {
63        Ok(Database::new(
64            "postgresql://localhost:5432/mydb".to_string(),
65        ))
66    })?;
67
68    // Register UserService (Singleton)
69    container.register::<UserService, _>(Scope::Singleton, |deps| {
70        let db = deps.get::<Database>()?;
71        Ok(UserService::new(db))
72    })?;
73
74    // Register OrderService (Singleton)
75    container.register::<OrderService, _>(Scope::Singleton, |deps| {
76        let db = deps.get::<Database>()?;
77        let user_service = deps.get::<UserService>()?;
78        Ok(OrderService::new(db, user_service))
79    })?;
80
81    println!("\n=== Get and use OrderService ===");
82    let order_service = container.get::<OrderService>();
83    order_service.create_order(1, "Laptop");
84
85    println!("\n=== Get OrderService again (should reuse singleton) ===");
86    let order_service2 = container.get::<OrderService>();
87    order_service2.create_order(2, "Phone");
88
89    println!("\n=== Verify same instance ===");
90    println!(
91        "Same instance: {}",
92        Arc::ptr_eq(&order_service, &order_service2)
93    );
94
95    Ok(())
96}

Source

pub fn register<T, F>(&self, scope: Scope, factory: F) -> Result<(), String>
where T: Any + Send + Sync + 'static, F: Fn(&mut Dependencies<'_>) -> Result<T, String> + Send + Sync + 'static,

Examples found in repository ?

examples/basic.rs (lines 62-66)

57fn main() -> Result<(), String> {
58    // Create container
59    let container = BeanContainer::new();
60
61    // Register Database (Singleton)
62    container.register::<Database, _>(Scope::Singleton, |_deps| {
63        Ok(Database::new(
64            "postgresql://localhost:5432/mydb".to_string(),
65        ))
66    })?;
67
68    // Register UserService (Singleton)
69    container.register::<UserService, _>(Scope::Singleton, |deps| {
70        let db = deps.get::<Database>()?;
71        Ok(UserService::new(db))
72    })?;
73
74    // Register OrderService (Singleton)
75    container.register::<OrderService, _>(Scope::Singleton, |deps| {
76        let db = deps.get::<Database>()?;
77        let user_service = deps.get::<UserService>()?;
78        Ok(OrderService::new(db, user_service))
79    })?;
80
81    println!("\n=== Get and use OrderService ===");
82    let order_service = container.get::<OrderService>();
83    order_service.create_order(1, "Laptop");
84
85    println!("\n=== Get OrderService again (should reuse singleton) ===");
86    let order_service2 = container.get::<OrderService>();
87    order_service2.create_order(2, "Phone");
88
89    println!("\n=== Verify same instance ===");
90    println!(
91        "Same instance: {}",
92        Arc::ptr_eq(&order_service, &order_service2)
93    );
94
95    Ok(())
96}

Source

pub fn register_named<T, F>( &self, name: &str, scope: Scope, factory: F, ) -> Result<(), String>
where T: Any + Send + Sync + 'static, F: Fn(&mut Dependencies<'_>) -> Result<T, String> + Send + Sync + 'static,

Source

pub fn get<T: Any + Send + Sync + 'static>(&self) -> Arc<T> ⓘ

Get bean by type NOTE: panics if bean not found

Examples found in repository ?

examples/basic.rs (line 82)

57fn main() -> Result<(), String> {
58    // Create container
59    let container = BeanContainer::new();
60
61    // Register Database (Singleton)
62    container.register::<Database, _>(Scope::Singleton, |_deps| {
63        Ok(Database::new(
64            "postgresql://localhost:5432/mydb".to_string(),
65        ))
66    })?;
67
68    // Register UserService (Singleton)
69    container.register::<UserService, _>(Scope::Singleton, |deps| {
70        let db = deps.get::<Database>()?;
71        Ok(UserService::new(db))
72    })?;
73
74    // Register OrderService (Singleton)
75    container.register::<OrderService, _>(Scope::Singleton, |deps| {
76        let db = deps.get::<Database>()?;
77        let user_service = deps.get::<UserService>()?;
78        Ok(OrderService::new(db, user_service))
79    })?;
80
81    println!("\n=== Get and use OrderService ===");
82    let order_service = container.get::<OrderService>();
83    order_service.create_order(1, "Laptop");
84
85    println!("\n=== Get OrderService again (should reuse singleton) ===");
86    let order_service2 = container.get::<OrderService>();
87    order_service2.create_order(2, "Phone");
88
89    println!("\n=== Verify same instance ===");
90    println!(
91        "Same instance: {}",
92        Arc::ptr_eq(&order_service, &order_service2)
93    );
94
95    Ok(())
96}