instantiate irepository ( unityframework ) using wcf.

Question

User-1835425756 posted

hello, i am new to wcf and mvc and unityframework.

i want to call the method of the businesslayer from the wcf service.

but the irepository class is not initialized and gives null ref. error.

here is the code:

WCF service code:

 public class GarageService : IGarageService 
    {

        private readonly IGarageRepository GarageRepository;

        public IEnumerable<ErrorMessage> AddGarage(Garage.Domain.ModelClass.Garage Garages)
        {
            return GarageRepository.AddGarage(Garages);
        }

the interface of the wcf code:

  [ServiceContract]
        public interface IGarageService
        {
            [OperationContract]
            IEnumerable<ErrorMessage> AddGarage(Garage.Domain.ModelClass.Garage Garage);

             

        }
    

now my businesslayer code where the repository resides as follows:

 public interface IGarageManagerService
    {
        IEnumerable<ErrorMessage> AddGarage(Garage.Domain.ModelClass.Garage Garage);
       
    }

    /// <summary>
    /// 
    /// </summary>
    public class GarageManager : IGarageManagerService
    {

        /// <summary>
        /// IGarageRepository's instance
        /// </summary>
        private readonly IGarageRepository GarageRepository;
        /// <summary>
        /// IUnitOfWork's instance
        /// </summary>
        private readonly IUnitOfWork unitOfWork;
       

        /// <summary>
        /// GarageManager class's constructor
        /// </summary>
        /// <param name="GarageRepository"></param>
        /// <param name="unitOfWork"></param>
        public GarageManager(IGarageRepository GarageRepository, IUnitOfWork unitOfWork)
        {
            this.GarageRepository = GarageRepository;
            this.unitOfWork = unitOfWork;
        }
}

i also added global.asax page as follows:

 protected void Application_Start()
        {
            
            IUnityContainer container = GetUnityContainer();
            DependencyResolver.SetResolver(new UnityDependencyResolver(container));
        }

        /// <summary>
        /// Gets Unity Container
        /// </summary>
        private IUnityContainer GetUnityContainer()
        {
            //Create UnityContainer          
            IUnityContainer container = new UnityContainer()
                //.RegisterType<IControllerActivator, CustomControllerActivator>() // No nned to a controller activator
             .RegisterType<IDatabaseFactory, DatabaseFactory>(new HttpContextLifetimeManager<IDatabaseFactory>())
             .RegisterType<IUnitOfWork, UnitOfWork>(new HttpContextLifetimeManager<IUnitOfWork>())

             .RegisterType<IGarageRepository, GarageRepository>(new HttpContextLifetimeManager<IGarageRepository>())
             .RegisterType<IGarageManagerService, GarageManager>(new HttpContextLifetimeManager<IGarageManagerService>());
            //.RegisterType<ICountryRepository, CountryRepository>(new HttpContextLifetimeManager<ICountryRepository>())
            // .RegisterType<ICountryService, CountryService>(new HttpContextLifetimeManager<ICountryService>());
            return container;
        }

i got error in wcf garageservice code.

pls help me, how to instantiate the repository.