Persistance Ignorance Linq to SQL

Question

I have an existing domain layer. I want to develop the persistence layer using Linq to SQL. I am currently using an external map file. I am trying to use lazy loading for my child collections but am unsuccessful. Is there a way to implement lazy loading using Linq to SQL but without using EntitySet or EntityRef.

You should rephrase your title and content from "ignorance" to "agnostic" — Andrei Rînea, May 25 '09 at 22:18

score 1 · Accepted Answer · answered May 25 '09 at 08:36

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I can't guarantee that I'm up to the latest development of LTS, but previously you had to you use EntitySet/EntityRef to get lazy loading.

You're best bet is NHibernate if you want a PI-model.

answered May 25 '09 at 08:36

Rune Sundling

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score 0 · Answer 2 · answered May 25 '09 at 09:02

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(Not really answering the question.)

Entity Framework (aka. LINQ to Entities) in .NET 4 includes persistence ignorance support e.g. being able to map to POCO (Plain Old CLR Object¹). See "Sneak Preview: Persistence Ignorance and POCO in Entity Framework 4.0 ".

¹ I.e. Not requiring a base class or attributes.

answered May 25 '09 at 09:02

Richard

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For info, LINQ-to-SQL supported this (and both lazy and eager loading) in the initial release ;-p – Marc Gravell May 25 '09 at 09:03

Persistance Ignorance Linq to SQL

2 Answers2