public virtual InternalEntityEntry StartTrackingFromQuery(
IEntityType baseEntityType,
object entity,
ValueBuffer valueBuffer)
{
var existingEntry = TryGetEntry(entity);
if (existingEntry != null)
{
return(existingEntry);
}
var clrType = entity.GetType();
var newEntry = _factory.Create(this,
baseEntityType.ClrType == clrType
? baseEntityType
: _model.FindEntityType(clrType),
entity, valueBuffer);
foreach (var key in baseEntityType.GetKeys())
{
GetOrCreateIdentityMap(key).AddOrUpdate(newEntry);
}
_entityReferenceMap[entity] = newEntry;
newEntry.MarkUnchangedFromQuery();
_subscriber.SnapshotAndSubscribe(newEntry);
return(newEntry);
}
public virtual InternalEntityEntry CreateNewEntry(IEntityType entityType)
{
// TODO: Consider entities without parameterless constructor--use o/c mapping info?
// Issue #240
var entity = entityType.HasClrType() ? Activator.CreateInstance(entityType.ClrType) : null;
return(_subscriber.SnapshotAndSubscribe(_factory.Create(this, entityType, entity)));
}
/// <summary>
/// This API supports the Entity Framework Core infrastructure and is not intended to be used
/// directly from your code. This API may change or be removed in future releases.
/// </summary>
public virtual InternalEntityEntry StartTrackingFromQuery(
IEntityType baseEntityType,
object entity,
ValueBuffer valueBuffer,
ISet <IForeignKey> handledForeignKeys)
{
var existingEntry = TryGetEntry(entity);
if (existingEntry != null)
{
return(existingEntry);
}
var clrType = entity.GetType();
var newEntry = _internalEntityEntryFactory.Create(
this,
baseEntityType.ClrType == clrType
? baseEntityType
: _model.FindRuntimeEntityType(clrType),
entity, valueBuffer);
foreach (var key in baseEntityType.GetKeys())
{
GetOrCreateIdentityMap(key).AddOrUpdate(newEntry);
}
AddToReferenceMap(newEntry);
newEntry.MarkUnchangedFromQuery(handledForeignKeys);
if (_internalEntityEntrySubscriber.SnapshotAndSubscribe(newEntry))
{
_needsUnsubscribe = true;
}
return(newEntry);
}
public virtual InternalEntityEntry GetOrCreateEntry(object entity)
{
// TODO: Consider how to handle derived types that are not explicitly in the model
// Issue #743
var entry = TryGetEntry(entity);
if (entry == null)
{
if (_detachedEntityReferenceMap.Count % 100 == 99)
{
InternalEntityEntry _;
var deadKeys = _detachedEntityReferenceMap
.Where(e => !e.Value.TryGetTarget(out _))
.Select(e => e.Key)
.ToList();
foreach (var deadKey in deadKeys)
{
_detachedEntityReferenceMap.Remove(deadKey);
}
}
SingleQueryMode = false;
var entityType = _model.FindEntityType(entity.GetType());
if (entityType == null)
{
throw new InvalidOperationException(CoreStrings.EntityTypeNotFound(entity.GetType().DisplayName(false)));
}
entry = _subscriber.SnapshotAndSubscribe(_factory.Create(this, entityType, entity));
_detachedEntityReferenceMap[entity] = new WeakReference <InternalEntityEntry>(entry);
}
return(entry);
}
