public IObjectActivator CreateObjectActivator(IDbContext dbContext)
{
InstanceCreator instanceCreator = this.ConstructorDescriptor.GetInstanceCreator();
List <IObjectActivator> argumentActivators = this.CreateArgumentActivators(dbContext);
List <IMemberBinder> memberBinders = this.CreateMemberBinders(dbContext);
IObjectActivator objectActivator;
if (dbContext != null)
{
objectActivator = new ObjectActivatorWithTracking(instanceCreator, argumentActivators, memberBinders, this.CheckNullOrdinal, dbContext);
}
else
{
objectActivator = new ComplexObjectActivator(instanceCreator, argumentActivators, memberBinders, this.CheckNullOrdinal);
}
if (this.IsRoot && this.HasMany())
{
TypeDescriptor entityTypeDescriptor = EntityTypeContainer.GetDescriptor(this.ObjectType);
List <Tuple <PropertyDescriptor, int> > keys = new List <Tuple <PropertyDescriptor, int> >(entityTypeDescriptor.PrimaryKeys.Count);
foreach (PrimitivePropertyDescriptor primaryKey in entityTypeDescriptor.PrimaryKeys)
{
keys.Add(new Tuple <PropertyDescriptor, int>(primaryKey, this.PrimitiveMembers[primaryKey.Definition.Property]));
}
IEntityRowComparer entityRowComparer = new EntityRowComparer(keys);
objectActivator = new RootEntityActivator(objectActivator, this.CreateFitter(dbContext), entityRowComparer);
}
return(objectActivator);
}
public CacheInfo(ComplexObjectActivator activator, IDataReader reader)
{
int fieldCount = reader.FieldCount;
var readerFields = new ReaderFieldInfo[fieldCount];
for (int i = 0; i < fieldCount; i++)
{
readerFields[i] = new ReaderFieldInfo(reader.GetName(i), reader.GetFieldType(i));
}
this._readerFields = readerFields;
this._objectActivator = activator;
}
static IObjectActivator GetObjectActivator(Type type, IDataReader reader)
{
if (type == PublicConstants.TypeOfObject || type == typeof(DapperRow))
{
return(new DapperRowObjectActivator());
}
List <CacheInfo> caches;
if (!ObjectActivatorCache.TryGetValue(type, out caches))
{
if (!Monitor.TryEnter(type))
{
return(CreateObjectActivator(type, reader));
}
try
{
caches = ObjectActivatorCache.GetOrAdd(type, new List <CacheInfo>(1));
}
finally
{
Monitor.Exit(type);
}
}
CacheInfo cache = TryGetCacheInfoFromList(caches, reader);
if (cache == null)
{
lock (caches)
{
cache = TryGetCacheInfoFromList(caches, reader);
if (cache == null)
{
ComplexObjectActivator activator = CreateObjectActivator(type, reader);
cache = new CacheInfo(activator, reader);
caches.Add(cache);
}
}
}
return(cache.ObjectActivator);
}
static ComplexObjectActivator CreateObjectActivator(Type type, IDataReader reader)
{
ConstructorInfo constructor = type.GetConstructor(Type.EmptyTypes);
if (constructor == null)
{
throw new ArgumentException(string.Format("The type of '{0}' does't define a none parameter constructor.", type.FullName));
}
ConstructorDescriptor constructorDescriptor = ConstructorDescriptor.GetInstance(constructor);
ObjectMemberMapper mapper = constructorDescriptor.GetEntityMemberMapper();
InstanceCreator instanceCreator = constructorDescriptor.GetInstanceCreator();
List <IMemberBinder> memberBinders = PrepareMemberBinders(type, reader, mapper);
ComplexObjectActivator objectActivator = new ComplexObjectActivator(instanceCreator, new List <IObjectActivator>(), memberBinders, null);
objectActivator.Prepare(reader);
return(objectActivator);
}
