ServiceInstanceProvider

class ServiceInstanceProvider : public sb::di::IServiceInstanceProvider

Subclassed by sb::di::details::core::ServiceInstanceProviderRoot

Public Types

using Ptr = std::unique_ptr<ServiceInstanceProvider>

Public Functions

ServiceInstanceProvider(IServiceInstanceProviderRoot &root, ServiceProviderOptions options)

ServiceInstanceProvider(ServiceInstanceProvider&&) = delete

ServiceInstanceProvider(const ServiceInstanceProvider&) = delete

ServiceInstanceProvider &operator=(const ServiceInstanceProvider&) = delete

ServiceInstanceProvider &operator=(ServiceInstanceProvider&&) = delete

virtual void init(ServiceProvider &serviceProvider) override

Initializes instance provider.

virtual const ServiceProviderOptions &getOptions() const override

Get service provider options.

virtual IServiceInstanceProvider::Ptr createScope() const override

Create a scoped service instance provider.

Scoped service instance provider creates/holds its own scoped services

virtual const ServiceInstance &getInstance(TypeId serviceTypeId) override

Returns service instance reference, might throw exception.

If service was not registered or was registered as transient, method throws exception

Throws:

sb::di::ServiceNotFoundException –

virtual const ServiceInstance *tryGetInstance(TypeId serviceTypeId) override

Returns service instance pointer.

If service was not registered or was registered as transient, method returns null

virtual const OneOrList<ServiceInstance> *tryGetInstances(TypeId serviceTypeId) override

Returns service instances.

If service instance was not registered or was registered as transient, method returns null

virtual ServiceInstance createInstance(TypeId serviceTypeId) override

Creates service instance unique pointer, might throw exception.

If service was not registered or was registered as scoped/singleton, method throw exception

Throws:

sb::di::ServiceNotFoundException –

virtual ServiceInstance tryCreateInstance(TypeId serviceTypeId) override

Creates service instance unique pointer, might be null.

If service was not registered or was registered as scoped/singleton, method returns invalid instance

virtual std::optional<OneOrList<ServiceInstance>> tryCreateInstances(TypeId serviceTypeId) override

Creates service instances.

If service was not registered or was registered as scoped/singleton, method returns null option

virtual ServiceInstance createInstanceInPlace(TypeId serviceTypeId) override

Creates service instance in place, might throw exception.

If service was not registered or was registered as scoped/singleton, method throws exception

Throws:

sb::di::ServiceNotFoundException –

virtual ServiceInstance tryCreateInstanceInPlace(TypeId serviceTypeId) override

Creates service instance in place.

If service was not registered or was registered as scoped/singleton, method returns invalid instance

void clear()