Struct Dependencies

Source

pub struct Dependencies<'a> { /* private fields */ }

Expand description

Dependency provider

Implementations§

Source §

impl<'a> Dependencies<'a>

Source

pub fn get<T: Any + Send + Sync + 'static>(&mut self) -> Result<Arc<T>, String>

Get bean with default name

Examples found in repository ?

examples/basic.rs (line 70)

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}