public override void Handle(NavigationPropertySegment segment)
{
var sourceType = this.modelContext.GetEntityTypeOrThrow(segment.NavigationProperty.DeclaringType.As <IEdmEntityType>().Name);
INavigationProperty navigationProperty;
if (!sourceType.TryGetNavigationProperty(segment.NavigationProperty.Name, out navigationProperty))
{
throw new KeyNotFoundException("Navigation property " + segment.NavigationProperty.Name + " not found on type " + sourceType.Name);
}
if (navigationProperty.IsCollection())
{
// we don't handle the collection navigation property immediately but set it to pending as the next segment might be a key
this.SetPendingEntityCollection(navigationProperty);
}
else
{
if (this.pendingEntityCollection != null)
{
this.HandlePendingEntityCollection();
}
EntityReadingHelper.ReadSingleNavigationProperty(this.readContext, navigationProperty);
}
}
private void HandlePendingEntityCollection()
{
var navigationProperty = this.pendingEntityCollection as INavigationProperty;
if (navigationProperty != null)
{
EntityReadingHelper.ReadCollectionNavigationProperty(this.readContext, navigationProperty);
}
else
{
EntityReadingHelper.ReadEntitySet(this.readContext, this.pendingEntityCollection.As <IEntitySet>());
}
this.pendingEntityCollection = null;
}
private void HandlePendingEntityCollection(IEnumerable <KeyValuePair <string, object> > keys)
{
var navigationProperty = this.pendingEntityCollection as INavigationProperty;
if (navigationProperty != null)
{
var deserializedKeys = GetDeserializedKeys(keys, navigationProperty.TargetType);
EntityReadingHelper.ReadCollectionNavigationProperty(this.readContext, navigationProperty, deserializedKeys);
}
else
{
var entitySet = this.pendingEntityCollection.As <IEntitySet>();
var deserializedKeys = GetDeserializedKeys(keys, entitySet.EntityType);
EntityReadingHelper.ReadEntitySet(this.readContext, entitySet, deserializedKeys);
}
this.pendingEntityCollection = null;
}
public override void Handle(SingletonSegment segment)
{
EntityReadingHelper.ReadSingleton(this.readContext, this.modelContext.GetEntitySetOrThrow(segment.Singleton.Name));
}