That would work, but it's new in 3.x (trunk)
Diego
On Fri, Jul 16, 2010 at 00:37, Mohamed Meligy <[email protected]> wrote:
> I think you can make the "Data" property itself lazy. This will solve your
> 2-level lazy issue. One level is "Attachments" property on "Document" class,
> and another is "Data" property on "Attachment" class.
>
> --
> *Mohamed Meligy*
> Senior Developer, Microsoft Technologies - Technical Delivery Group
> Injazat Data Systems
> P.O. Box: 8230, Abu Dhabi, U.A.E. (*GMT+4*)**
>
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>
>
> On Fri, Jul 16, 2010 at 7:20 AM, alexey_baranov <[email protected]> wrote:
>
>> Hi!
>>
>> I'm thinking about attachments to my documents. Attachments are up to
>> 10 Gb size. First of all I created a new Class:
>>
>> Class Attachment{
>> int Id;
>> string FileName;
>> string MimeType;
>> string Data; //mapped to BLOB field / very large!
>> }
>>
>> Class Document{
>> int Id;
>>
>> ... ...
>>
>> IList<Attachment> Attachments;
>> }
>>
>>
>> And create one-to-many relationship between Owner and his Attachments.
>> My problem is if I try to get the FileNames of Attachments (for
>> example for UI form) then all fields including very large Data fields
>> loading from database.
>>
>> How can I make TWO LAVEL LAZY LOADING of Attachments collection?
>> First level- load FileNames and MimeTypes of all Attachments when ask
>> collection first time.
>> Second level - load EXACTLY ONE Data field when first time ask it.
>>
>> Thanks!
>>
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