private DataModel(Type objectType, DataTable root, DataTable snapshot)
{
this.ObjectType = objectType;
this.Root = root;
this.Snapshot = snapshot;
_objectTip = this.Root.ObjectTip;
}
/// <summary>
///
/// </summary>
/// <param name="tip"></param>
/// <param name="id"></param>
/// <returns></returns>
private object ReadSnapshot(PropertyRepositoryAttribute tip, object id)
{
var objectTip = ObjectRepositoryAttribute.GetTip(tip.PropertyType, true);
if (objectTip.Snapshot) //如果外部内聚根是有快照的，那么当数据不存在时，加载快照
{
var idName = _getIdName(tip.PropertyName);
var root = DataModel.Create(objectTip.ObjectType).Root;
return(root.QuerySingle(id, QueryLevel.None));
}
return(DomainObject.GetEmpty(tip.PropertyType));
}
private void InitObjectType(Type objectType)
{
this.ObjectType = objectType;
if (this.Type == DataTableType.Middle)
{
this.ElementType = this.ObjectType.ResolveElementType();
}
else
{
this.ObjectTip = ObjectRepositoryAttribute.GetTip(this.ObjectType, true);
}
}
internal static DataModel CreateNew(Type objectType)
{
var mapper = DataMapperFactory.Create(objectType);
var objectFields = mapper.GetObjectFields(objectType, false);
var root = DataTable.Create(objectType, objectFields);
DataTable snapshot = null;
if (DomainObject.IsAggregateRoot(objectType))
{
var tip = ObjectRepositoryAttribute.GetTip(objectType, true);
if (tip.Snapshot)
{
var snapshotObjectFields = mapper.GetObjectFields(objectType, true);
snapshot = DataTable.CreateSnapshot(objectType, snapshotObjectFields);
}
}
return(new DataModel(objectType, root, snapshot));
}
private void InitObjectType(Type objectType, PropertyRepositoryAttribute tip)
{
this.ObjectType = objectType;
if (this.Type == DataTableType.Middle)
{
this.ElementType = tip.GetElementType();
}
else if (this.Type == DataTableType.AggregateRoot)
{
this.ObjectTip = ObjectRepositoryAttribute.GetTip(this.ObjectType, true);
}
else
{
//对于值对象和引用对象，如果没有定义ObjectRepositoryAttribute，那么使用根的ObjectRepositoryAttribute
this.ObjectTip = ObjectRepositoryAttribute.GetTip(this.ObjectType, false);
if (this.ObjectTip == null)
{
this.ObjectTip = this.Root.ObjectTip;
}
}
}
