ServiceInstanceProvider

class ServiceInstanceProvider : public sb::di::IServiceInstanceProvider

Subclassed by sb::di::details::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

inline const ServiceProviderOptions &getOptions() const

virtual void init(ServiceProvider &serviceProvider) override

Initializes instance provider.

virtual IServiceInstanceProvider::Ptr createScope() const override

Create a scoped service instance provider.

Scoped service instance provider creates/holds its own scoped services

inline virtual const ServiceInstance &getInstance(const 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 –

inline virtual const ServiceInstance *tryGetInstance(const TypeId serviceTypeId) override

Returns service instance pointer.

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

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

Returns service instances.

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

inline virtual ServiceInstance createInstance(const 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 –

inline virtual ServiceInstance tryCreateInstance(const 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

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

Creates service instances.

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

inline virtual ServiceInstance createInstanceInPlace(const 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 –

inline virtual ServiceInstance tryCreateInstanceInPlace(const TypeId serviceTypeId) override

Creates service instance in place.

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

inline virtual const ServiceInstance &getKeyedInstance(const TypeId serviceTypeId, const std::string_view serviceKey) 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 –

inline virtual const ServiceInstance *tryGetKeyedInstance(const TypeId serviceTypeId, const std::string_view serviceKey) override

Returns service instance pointer.

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

inline virtual const OneOrList<ServiceInstance> *tryGetKeyedInstances(const TypeId serviceTypeId, const std::string_view serviceKey) override

Returns service instances.

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

inline virtual ServiceInstance createKeyedInstance(const TypeId serviceTypeId, const std::string_view serviceKey) 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 –

inline virtual ServiceInstance tryCreateKeyedInstance(const TypeId serviceTypeId, const std::string_view serviceKey) override

Creates service instance unique pointer, might be null.

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

inline virtual std::optional<OneOrList<ServiceInstance>> tryCreateKeyedInstances(const TypeId serviceTypeId, const std::string_view serviceKey) override

Creates service instances.

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

inline virtual ServiceInstance createKeyedInstanceInPlace(const TypeId serviceTypeId, const std::string_view serviceKey) 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 –

inline virtual ServiceInstance tryCreateKeyedInstanceInPlace(const TypeId serviceTypeId, const std::string_view serviceKey) override

Creates service instance in place.

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