public virtual StateEntry GetOrMaterializeEntry([NotNull] IEntityType entityType, [NotNull] IValueReader valueReader)
{
Check.NotNull(entityType, "entityType");
Check.NotNull(valueReader, "valueReader");
// TODO: Pre-compute this for speed
var keyProperties = entityType.GetKey().Properties;
var keyValue = _keyFactorySource.GetKeyFactory(keyProperties).Create(entityType, keyProperties, valueReader);
StateEntry existingEntry;
if (_identityMap.TryGetValue(keyValue, out existingEntry))
{
return(existingEntry);
}
var newEntry = _subscriber.SnapshotAndSubscribe(_factory.Create(entityType, valueReader));
_identityMap.Add(keyValue, newEntry);
var entity = newEntry.Entity;
if (entity != null)
{
_entityReferenceMap[entity] = newEntry;
}
newEntry.EntityState = EntityState.Unchanged;
return(newEntry);
}
public virtual void StartTracking(
[NotNull] IEntityType entityType, [NotNull] object entity, [NotNull] IValueReader valueReader)
{
Check.NotNull(entityType, "entityType");
Check.NotNull(entity, "entity");
Check.NotNull(valueReader, "valueReader");
// TODO: Perf: Pre-compute this for speed
var keyProperties = entityType.GetPrimaryKey().Properties;
var keyValue = _keyFactorySource.GetKeyFactory(keyProperties).Create(entityType, keyProperties, valueReader);
var existingEntry = TryGetEntry(keyValue);
if (existingEntry != null)
{
return;
}
var newEntry = _subscriber.SnapshotAndSubscribe(_factory.Create(this, entityType, entity, valueReader));
_identityMap.Add(keyValue, newEntry);
_entityReferenceMap[entity] = newEntry;
newEntry.EntityState = EntityState.Unchanged;
}
public virtual EntityKey CreateKey(
[NotNull] IEntityType entityType,
[NotNull] IReadOnlyList <IProperty> properties,
[NotNull] IPropertyBagEntry propertyBagEntry)
{
Check.NotNull(entityType, "entityType");
Check.NotEmpty(properties, "properties");
Check.NotNull(propertyBagEntry, "propertyBagEntry");
return(_entityKeyFactorySource
.GetKeyFactory(properties)
.Create(entityType, properties, propertyBagEntry));
}
public virtual StateEntry StartTracking(
[NotNull] IEntityType entityType, [NotNull] object entity, [NotNull] IValueReader valueReader)
{
Check.NotNull(entityType, "entityType");
Check.NotNull(entity, "entity");
Check.NotNull(valueReader, "valueReader");
// TODO: Perf: Pre-compute this for speed
var keyProperties = entityType.GetPrimaryKey().Properties;
var keyValue = _keyFactorySource.GetKeyFactory(keyProperties).Create(entityType, keyProperties, valueReader);
if (keyValue == EntityKey.NullEntityKey)
{
throw new InvalidOperationException(Strings.NullPrimaryKey(entityType.SimpleName));
}
var existingEntry = TryGetEntry(keyValue);
if (existingEntry != null)
{
if (existingEntry.Entity != entity)
{
throw new InvalidOperationException(Strings.IdentityConflict(entityType.SimpleName));
}
return(existingEntry);
}
var newEntry = _subscriber.SnapshotAndSubscribe(_factory.Create(this, entityType, entity, valueReader));
_identityMap.Add(keyValue, newEntry);
_entityReferenceMap[entity] = newEntry;
newEntry.SetEntityState(EntityState.Unchanged);
return(newEntry);
}