On Sat, 2009-11-21 at 01:26 -0800, Dip's wrote:
> but i want to be assure that DBLINQ 0.19 can internally manage Data
> caching or Developer(s) have to implement these Data cahing.
The DataContext does maintain references to all entities created (in
order to support change tracking). This does constitute a cache (of
sorts), and we do ensure that subsequent queries return the same
objects. For example, see WriteTest.E1_LiveObjectsAreUnique() [0]:
//grab an object twice, make sure we get the same object each time
Northwind db = CreateDB();
var q = from p in db.Products select p;
Product product1 = q.First();
Product product2 = q.First();
Assert.AreSame(product1, product2);
> this example shows you there is one datacontext "test" here, i have
> created object of this "test" for get all product data without Data
> Cahing manage from my side, so the question is will i get this
> "AllProduct" data 2nd time from Cache or it will again(2nd time) make
> DB call to retrive "AllProduct".
That would appear to be the case (see above test), though there may be
some corner case I'm currently unaware of.
> another issue is DBLINQ 0.19 QueryCahe is different then the Microsoft
> Precomplile query.
This is a known issue, and won't be resolved until 0.20 (at least).
- Jon
[0]
http://dblinq2007.googlecode.com/svn/trunk/src/DbLinq/Test/Providers/WriteTest.cs
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