public IFieldReader <TItem> Get(Stem <TItem> stem)
{
var substemCreator = new SubstemEngineSubContextCreator <TItem, TNav, TSubstem>(stem);
StemsEngineSubContext <TNav> subContext = substemCreator.GetEngineContext();
return(new SubCollectionFieldReader <TItem, TCollection, TNav>(_navigationExpression, subContext));
}
public SubCollectionFieldWriterTests()
{
var subStem = new ArtistAlbumsStem();
subStem.SetParent(new TestStartAxis());
StemsEngineSubContext <Album> stemsEngineSubContext = new StemsEngineSubContext <Album>(subStem);
var tools = new SubWriterTools <Artist, IEnumerable <Album>, Album>(a => a.Albums, null, null);
NameFieldWriter = new SubCollectionFieldWriter <Artist, IEnumerable <Album>, Album>(tools, stemsEngineSubContext);
}
public IFieldWriter <TItem> Get(Stem <TItem> stem)
{
var substemCreator = new SubstemEngineSubContextCreator <TItem, TNav, TSubstem>(stem);
StemDataChangeEvents <TNav> stemEvents = substemCreator.GetDataChangeEvents();
StemsEngineSubContext <TNav> subContext = substemCreator.GetEngineContext();
MethodSetter <TItem, TNav> setter = MethodSetter <TItem, TNav> .FromDefinition(_definition, stem);
var tools = new SubWriterTools <TItem, TNav, TNav>(_navigationExpression, stemEvents, setter);
return(new SubItemFieldWriter <TItem, TNav>(tools, subContext));
}
public IRestCollection GetRestCollection(Stem <TItem> stem)
{
IDataTransaction transaction = _dataSource.CreateTransaction();
stem.OnDispose += delegate { transaction.Dispose(); };
IEngineRepository <TItem> repository = _dataSource.GetRepository <TItem>(transaction);
var wrapper = new DataEventWrapper <TItem>(transaction, repository);
wrapper.TryWrapEvents(new StemDataChangeEvents <TItem>(stem));
var subContext = new StemsEngineSubContext <TItem>(stem);
var context = new FullEngineContext <TItem>(wrapper.Transaction, wrapper.Repository, subContext);
return(new EngineRestCollection <TItem>(context));
}