internal EntityTracker(ODataClient oDataClient, object entity)
{
Contract.Requires<ArgumentNullException>(oDataClient != null);
Contract.Requires<ArgumentNullException>(entity != null);
_oDataClient = oDataClient;
_entity = entity;
_entityTypeInfo = oDataClient.GetEntityTypeInfoFor(entity.GetType());
if (_entityTypeInfo == null)
{
throw new ArgumentException("Entity type " + entity.GetType() + " is unknown in the OData Client.");
}
_linkCollectionTrackers = new LinkCollectionTracker[_entityTypeInfo.CollectionProperties.Length];
for (int i = 0; i < _entityTypeInfo.CollectionProperties.Length; ++i)
{
PropertyInfo property = _entityTypeInfo.CollectionProperties[i];
IEnumerable collection = (IEnumerable) property.GetValue(_entity, null);
if (collection != null)
{
_linkCollectionTrackers[i] = new LinkCollectionTracker(this, property.Name, collection);
}
}
INotifyPropertyChanged inpc = _entity as INotifyPropertyChanged;
if (inpc != null)
{
// Use change tracking for more efficiency (possibly)
inpc.PropertyChanged += OnPropertyChanged;
}
}
internal EntitySetInfo(IEdmModel edmModel, IEdmEntitySet edmEntitySet, ITypeResolver typeResolver)
{
Contract.Assert(edmModel != null);
Contract.Assert(edmEntitySet != null);
Contract.Assert(typeResolver != null);
Name = edmEntitySet.Name;
ElementType = new EntityTypeInfo(edmModel, edmEntitySet.ElementType, typeResolver);
var entityTypes = new List<EntityTypeInfo>(3) { ElementType };
// Create an EntityTypeInfo for any derived types in the model
foreach (var edmDerivedType in edmModel.FindAllDerivedTypes(edmEntitySet.ElementType).OfType<IEdmEntityType>())
{
entityTypes.Add(new EntityTypeInfo(edmModel, edmDerivedType, typeResolver));
}
// Connect any derived types with their base class
for (int i = 1; i < entityTypes.Count; ++i)
{
var baseEdmEntityType = entityTypes[i].EdmEntityType.BaseEntityType();
if (baseEdmEntityType != null)
{
var baseEntityTypeInfo = entityTypes.First(entityTypeInfo => entityTypeInfo.EdmEntityType == baseEdmEntityType);
if (baseEntityTypeInfo != null)
{
entityTypes[i].BaseTypeInfo = baseEntityTypeInfo;
}
}
}
EntityTypes = entityTypes;
}