Struct ServiceContainer 

pub struct ServiceContainer { /* private fields */ }

Service container that holds all repository instances and provides factory methods for use cases.

The container uses Arc for thread-safe sharing of repository instances across use cases. All repositories are stored as trait objects, allowing for easy substitution with mock implementations during testing.

Design Principles

1. Singleton Repositories: Repository instances are created once and shared across all use cases
2. Factory Methods: Use cases are created on-demand with their dependencies injected
3. Thread Safety: All repositories are wrapped in Arc for concurrent access
4. Testability: Repositories can be swapped with mocks via the builder

Stateless Use Cases

Some use cases are stateless (unit structs with static methods). These are NOT included in the container and should be used directly:

• PublishArticleUseCase::execute(article)
• ArchiveArticleUseCase::execute(article)
• DeleteArticleUseCase::execute(article)
• RestoreArticleUseCase::execute(article)
• RecordArticlePurchaseUseCase::execute(article, amount)
• ExtendAccessUseCase::execute(token, days)
• And others…

Example

let container = ContainerBuilder::new()
    .with_in_memory_repositories()
    .build();

// Get use cases with dependencies injected
let register_creator = container.register_creator_use_case();
let initiate_payment = container.initiate_payment_use_case();

Implementations

impl ServiceContainer

pub fn new( creator_repository: Arc<dyn CreatorRepository>, article_repository: Arc<dyn ArticleRepository>, transaction_repository: Arc<dyn TransactionRepository>, access_token_repository: Arc<dyn AccessTokenRepository>, fork_repository: Arc<dyn ForkRepository>, event_stream_repository: Arc<dyn EventStreamRepository>, ) -> Self

Creates a new service container with the provided repositories.

Prefer using ContainerBuilder for a more fluent API.

pub fn creator_repository(&self) -> Arc<dyn CreatorRepository>

Returns the creator repository instance.

pub fn article_repository(&self) -> Arc<dyn ArticleRepository>

Returns the article repository instance.

pub fn transaction_repository(&self) -> Arc<dyn TransactionRepository>

Returns the transaction repository instance.

pub fn access_token_repository(&self) -> Arc<dyn AccessTokenRepository>

Returns the access token repository instance.

pub fn fork_repository(&self) -> Arc<dyn ForkRepository>

Returns the fork repository instance.

pub fn event_stream_repository(&self) -> Arc<dyn EventStreamRepository>

Returns the event stream repository instance.

pub fn register_creator_use_case(&self) -> RegisterCreatorUseCase

Creates a new RegisterCreatorUseCase with injected dependencies.

pub fn update_creator_use_case(&self) -> UpdateCreatorUseCase

Creates a new UpdateCreatorUseCase with injected dependencies.

pub fn create_article_use_case(&self) -> CreateArticleUseCase

Creates a new CreateArticleUseCase with injected dependencies.

pub fn update_article_use_case(&self) -> UpdateArticleUseCase

Creates a new UpdateArticleUseCase with injected dependencies.

pub fn initiate_payment_use_case(&self) -> InitiatePaymentUseCase

Creates a new InitiatePaymentUseCase with injected dependencies.

pub fn confirm_transaction_use_case(&self) -> ConfirmTransactionUseCase

Creates a new ConfirmTransactionUseCase with injected dependencies.

pub fn refund_transaction_use_case(&self) -> RefundTransactionUseCase

Creates a new RefundTransactionUseCase with injected dependencies.

pub fn grant_free_access_use_case(&self) -> GrantFreeAccessUseCase

Creates a new GrantFreeAccessUseCase with injected dependencies.

pub fn validate_token_use_case(&self) -> ValidateTokenUseCase

Creates a new ValidateTokenUseCase with injected dependencies.

pub fn revoke_access_use_case(&self) -> RevokeAccessUseCase

Creates a new RevokeAccessUseCase with injected dependencies.

pub fn check_access_use_case(&self) -> CheckAccessUseCase

Creates a new CheckAccessUseCase with injected dependencies.

pub fn cleanup_expired_tokens_use_case(&self) -> CleanupExpiredTokensUseCase

Creates a new CleanupExpiredTokensUseCase with injected dependencies.

pub fn create_fork_use_case(&self) -> CreateForkUseCase

Creates a new CreateForkUseCase with injected dependencies.

pub fn update_fork_use_case(&self) -> UpdateForkUseCase

Creates a new UpdateForkUseCase with injected dependencies.

pub fn merge_fork_use_case(&self) -> MergeForkUseCase

Creates a new MergeForkUseCase with injected dependencies.

pub fn discard_fork_use_case(&self) -> DiscardForkUseCase

Creates a new DiscardForkUseCase with injected dependencies.

pub fn get_fork_use_case(&self) -> GetForkUseCase

Creates a new GetForkUseCase with injected dependencies.

pub fn append_fork_event_use_case(&self) -> AppendForkEventUseCase

Creates a new AppendForkEventUseCase with injected dependencies.

pub fn query_fork_events_use_case(&self) -> QueryForkEventsUseCase

Creates a new QueryForkEventsUseCase with injected dependencies.

pub fn branch_fork_use_case(&self) -> BranchForkUseCase

Creates a new BranchForkUseCase with injected dependencies.

pub fn cleanup_expired_forks_use_case(&self) -> CleanupExpiredForksUseCase

Creates a new CleanupExpiredForksUseCase with injected dependencies.

Trait Implementations

impl Clone for ServiceContainer

fn clone(&self) -> ServiceContainer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ServiceContainer

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

Formats the value using the given formatter.