I am trying to access the object of my RepositoryJournalVoucher.cs class from my main class named RepositoryVoucher.cs but i am unable to access or make instance, dont know why.
abstract class RepositoryUniversalAccounts.cs
namespace eCartDynamic.RepositoryApplication
{
public abstract class RepositoryUniversalAccounts
{
public string AccountCode { get; set; }
public abstract string PostVoucher();
}
}
RepositoryCashVoucher.cs
namespace eCartDynamic.RepositoryApplication
{
public class RepositoryCashVoucher : RepositoryUniversalAccounts
{
public override string PostVoucher()
{
AccountCode = "16-01-001-01-000001-CV";
return "CV Posted Sucessfully";
}
}
}
RepositoryJournalVoucher.cs
namespace eCartDynamic.RepositoryApplication
{
public class RepositoryJournalVoucher : RepositoryUniversalAccounts
{
public override string PostVoucher()
{
AccountCode = "16-01-001-01-000001-JV";
return "JV Posted Sucessfully";
}
}
}
Main Class. RepositoryVoucher.cs
namespace eCartDynamic.RepositoryApplication
{
public class RepositoryVoucher
{
RepositoryUniversalAccounts abc = new RepositoryJournalVoucher();
}
}
in my RepositoryVoucher.cs Class i am not be able to make object of anything like:
RepositoryUniversalAccounts abc = new RepositoryJournalVoucher();
RepositoryJournalVoucherabc obj = new RepositoryJournalVoucher();
Related
is there a way to map a DTO using MatStruct which have a few final data members as well and cannot have a default constructor , like :
public class TestDto {
private final String testName;
private int id;
private String testCase;
public TestDto(String testName) {
this.testName = testName;
}
public String getTestName() {
return testName;
}
public int getId() {
return id;
}
public String getTestCase() {
return testCase;
}
public void setId(int id) {
this.id = id;
}
public void setTestCase(String testCase) {
this.testCase = testCase;
}
}
please suggest how could this DTO be mapped using MapStruct.
You can use #ObjectFactory that would construct an instance of your DTO.
For example:
#Mapper
public interface MyMapper {
#ObjectFactory
default TestDto create() {
return new TestDto("My Test Name");
}
//the rest of the mappings
}
You can also enhance the #ObjectFactory to accept the source parameter, that you can use to construct the TestDto. You can even use a #Context as an Object Factory.
NB: You don't have to put the #ObjectFactory method in the same Mapper, or even a MapStruct #Mapper. You can put it in any class (or make it static) and then #Mapper(uses = MyFactory.class)
I've two projects (class library projects) which implement one interface:
The first one:
public class MailPlugin : Extensibility.IProductorPlugin
{
...
}
The second one:
public class FileSystemPlugin : Extensibility.IProductorPlugin
{
...
}
Extensibility.IProductorPlugin, is a interface of a third project:
namespace Extensibility
{
public delegate void NotifyDigitalInputs(List<Domain.DigitalInput> digital_inputs);
public interface IProductorPlugin
{
String Name { get; }
String Description { get; }
String Version { get; }
List<Domain.Channel> AvailableChannels { get; }
IEnumerable<Guid> TypeGuids { get; }
event NotifyDigitalInputs OnDigitalInputs;
}
}
In my composition root, I've created this class:
namespace UI
{
public sealed class NinjectServiceLocator
{
private static readonly Lazy<NinjectServiceLocator> lazy = new Lazy<NinjectServiceLocator>(() => new NinjectServiceLocator());
public static NinjectServiceLocator Instance { get { return lazy.Value; } }
public Ninject.IKernel Kernel { get; private set; }
private NinjectServiceLocator()
{
using (var k = this.Kernel = new Ninject.StandardKernel())
{
k.Bind(b => b.FromAssembliesMatching("*")
.SelectAllClasses()
.InheritedFrom(typeof(Extensibility.IProductorPlugin))
.BindAllInterfaces()
);
}
}
}
}
So, when I want to look for all plugins, I just perform this:
protected void initialize()
{
foreach (Extensibility.IProductorPlugin productor_plugin in NinjectServiceLocator.Instance.Kernel.GetAll(typeof(Extensibility.IProductorPlugin)))
{
using (var channel_tile = new DevExpress.XtraBars.Docking2010.Views.WindowsUI.Tile() { Group = "Plugin Channels" })
{
foreach (Domain.Channel channel in productor_plugin.AvailableChannels)
{
channel_tile.Elements.Add(new DevExpress.XtraEditors.TileItemElement() { Text = channel.Name });
channel_tile.Elements.Add(new DevExpress.XtraEditors.TileItemElement() { Text = channel.Description });
this.tileContainer1.Items.Add(channel_tile);
}
}
}
}
However, GetAll returns anything.
What am I doing wrong?
I'll appreciate a lot your help.
Thanks for all.
try removing the using() from around the Kernel instantiation. a using will dispose the object at the end of the scope, which we don't want for a kernel.
using (var k = this.Kernel = new Ninject.StandardKernel())
My complex type wouldn't pass from Show to Init method even with configured MvxJsonNavigationSerializer as specified here Custom types in Navigation parameters in v3
public class A
{
public string String1 {get;set;}
public string String2 {get;set;}
public B ComplexObject1 {get;set;}
}
public class B
{
public double Double1 {get;set;}
public double Double2 {get;set;}
}
When I pass instance of object A to ShowViewModel method I receive this object with String1 & String2 deserialized correctly but CopmlexObject1 is null.
How to deal with complex object MvvmCross serialization?
I believe there may be some gremlins in that previous answer - will log as an issue :/
There are other possible routes to achieve this type of complex serializable object navigation still using Json and overriding parts of the framework, but actually I think that it might be better to just use your own BaseViewModel's to do serialization and deserialization - e.g. use serialization code like:
public class BaseViewModel
: MvxViewModel
{
private const string ParameterName = "parameter";
protected void ShowViewModel<TViewModel>(object parameter)
where TViewModel : IMvxViewModel
{
var text = Mvx.Resolve<IMvxJsonConverter>().SerializeObject(parameter);
base.ShowViewModel<TViewModel>(new Dictionary<string, string>()
{
{ParameterName, text}
});
}
}
with deserialization like:
public abstract class BaseViewModel<TInit>
: MvxViewModel
{
public void Init(string parameter)
{
var deserialized = Mvx.Resolve<IMvxJsonConverter>().DeserializeObject<TInit>(parameter);
RealInit(deserialized);
}
protected abstract void RealInit(TInit parameter);
}
then a viewModel like this:
public class FirstViewModel
: BaseViewModel
{
public IMvxCommand Go
{
get
{
return new MvxCommand(() =>
{
var parameter = new A()
{
String1 = "Hello",
String2 = "World",
ComplexObject = new B()
{
Double1 = 42.0,
Double2 = -1
}
};
ShowViewModel<SecondViewModel>(parameter);
});
}
}
}
can navigate to something like:
public class SecondViewModel
: BaseViewModel<A>
{
public A A { get; set; }
protected override void RealInit(A parameter)
{
A = parameter;
}
}
A small addition to Stuart's answer to add type safety:
public class BaseViewModel: MvxViewModel {
protected bool ShowViewModel<TViewModel, TInit>(TInit parameter) where TViewModel: BaseViewModel<TInit> {
var text = Mvx.Resolve<IMvxJsonConverter>().SerializeObject(parameter);
return base.ShowViewModel<TViewModel>(new Dictionary<string, string> { {"parameter", text} });
}
}
public abstract class BaseViewModel<TInit> : BaseViewModel {
public void Init(string parameter)
{
var deserialized = Mvx.Resolve<IMvxJsonConverter>().DeserializeObject<TInit>(parameter);
RealInit(deserialized);
}
protected abstract void RealInit(TInit parameter);
}
ShowViewModel method now takes the same parameter type that the RealInit method instead of an object type. Also, BaseViewModel<TInit> inherits from BaseViewModel so their instances can also call the new ShowViewModel method.
The only drawback is that you have to explicitly specify the parameter type in the call like this:
ShowViewModel<StoreInfoViewModel, Store>(store);
Let's say I would like to inject an implementation of this interface:
interface IService { ... }
implemented as:
class MyService : IService
{
public MyService(string s) { }
}
in an instance of this class:
class Target
{
[Inject]
public IService { private get; set; }
}
I do the injection by calling kernel.Inject(new Target()), but what if I would like to specify the parameter s of the constructor depending on some context when calling Inject?
Is there a way to achieve such context-dependant service initialization at injection?
Thanks!
In most cases you should not use Field Injection, it should be
used only in rare cases of circular dependencies.
You should only use the kernel once at the start of your
application and never again.
Example Code:
interface IService { ... }
class Service : IService
{
public Service(string s) { ... }
}
interface ITarget { ... }
class Target : ITarget
{
private IService _service;
public Target(IServiceFactory serviceFactory, string s)
{
_service = serviceFactory.Create(s);
}
}
interface ITargetFactory
{
ITarget Create(string s);
}
interface IServiceFactory
{
IService Create(string s);
}
class NinjectBindModule : NinjectModule
{
public NinjectBindModule()
{
Bind<ITarget>().To<Target>();
Bind<IService>().To<Service>();
Bind<ITargetFactory>().ToFactory().InSingletonScope();
Bind<IServiceFactory>().ToFactory().InSingletonScope();
}
}
Usage:
public class Program
{
public static void Main(string[] args)
{
IKernel kernel = new StandardKernel(new NinjectBindModule());
var targetFactory = kernel.Get<ITargetFactory>();
var target = targetFactory.Create("myString");
target.DoStuff();
}
}
Simply done using parameters...
kernel.Inject(new Target(), new ConstructorArgument("s", "someString", true));
A bit of history first. I created a EF Code First Library that contains POCO Objects as my Models, a generic DataProvider that inherits from DbContext, generic Repostory that implements the generic DataProvider, and a generic Service that implements the repository. I have used this library successfully in WPF (MVVM), ASP.Net, Window Forms, and ASP MVC applications.
For this discussion I will reference the Company Model
From the top down, I create a Service class called CompanyService that inherits from a base Service Class. The CompanyService class contains all of the business logic for the Company Model. This class uses the Repository class to perform the CRUD operations. The Repository then encapsulates all the DataProvider class operations.
I have done some research on using EF with WCFDataService, but I can't get my head around how to implement my library with it, particulary when it comes to overriding the CreateDataSource() Method.
It may be that I should just use a WCF Service instead, maybe I'm not understanding the purpose of the WCFDataService.
I have listed partial code for the classes involved:
public class CompanyService : ServiceBase<Company> ,ICompanyService
{
public Company GetCompanyByFolderId(string eFolderId)
{
return (Company)GetModelByFolderId(eFolderId);
}
}
public abstract class ServiceBase<TModel> : IService<TModel> where TModel : class, IModel
{
private IDataProvider _dataProvider;
public IDataProvider DataProvider
{
get
{
if (_dataProvider == null)
{
string connectionStringName = Properties.Settings.Default.DataProvider;
bool enableLazyLoading = true;
_dataProvider = new DataProvider(connectionStringName, enableLazyLoading);
}
return _dataProvider;
}
set
{
_dataProvider = value;
}
}
private IRepository<TModel> _repository;
public IRepository<TModel> Repository
{
get
{
if (_repository == null)
{
_repository = new Repository<TModel>(DataProvider);
}
return _repository;
}
set
{
_repository = value;
}
}
public TModel GetModelByFolderId(String folderId)
{
return GetTable().FirstOrDefault(o => o.EFolderid == folderId);
}
public virtual IQueryable<TModel> GetTable()
{
return Repository.GetTable();
}
}
public class Repository<TModel> : IRepository<TModel> where TModel : class, IModel
{
private IDataProvider _dataProvider;
public Repository(IDataProvider dataProvider)
{
_dataProvider = dataProvider;
}
private IDbSet<TModel> DbSet
{
get
{
return _dataProvider.Set<TModel>();
}
}
public IQueryable<TModel> GetTable()
{
return _dataProvider.GetTable<TModel>();
}
}
public class DataProvider : DbContext, IDataProvider
{
public DataProvider()
{
}
public DataProvider(string connectionStringName, bool enableLazyLoading = true)
: base(connectionStringName)
{
Configuration.LazyLoadingEnabled = enableLazyLoading;
//Configuration.ProxyCreationEnabled = false;
}
public new IDbSet<TModel> Set<TModel>() where TModel : class
{
return base.Set<TModel>();
}
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
modelBuilder.Configurations.Add(new CompanyMapping());
base.OnModelCreating(modelBuilder);
}
public IQueryable<TModel> GetTable<TModel>() where TModel : class
{
return Set<TModel>().AsQueryable();
}
}
Then my Test looks something like this:
[TestClass()]
public class CompanyServiceTest
{
[TestMethod()]
public void GetCompanies()
{
CompanyService target = new CompanyService();
IQueryable<Company> companies = target.GetTable();
Assert.IsNotNull(companies);
}
[TestMethod()]
public void GetCompanyByFolderId()
{
CompanyService target = new CompanyService();
Company company = target.GetCompanyByFolderId("0000000000000000000000000172403");
Assert.IsNotNull(company);
}
}