FransBouma

protected object GetValue(int fieldIndex, bool returnDefaultIfNull)
{
	if(_fields == null)
	{
		return null;
	}

	if(_fields.State == EntityState.Deleted)
	{
		throw new ORMEntityIsDeletedException("This entity is deleted from the database and can't be used in logic.", this);

FransBouma

public static string ConnectionString = @"data source=zeusVM\SQLSERVER2005;initial catalog=AdventureWorks;integrated security=SSPI;persist security info=False;packet size=4096";

static void Main(string[] args)
{
  Console.WriteLine("Starting");
	FetchEntityCollectionAsync();
	Console.WriteLine("Fetch called. Press enter to quit");
	Console.ReadLine();
}

FransBouma

/// <summary>
/// Cleans up the data reader (closes it if necessary and disposes it)
/// </summary>
/// <param name="reader">The reader.</param>
/// <param name="queryExecuted">The query executed.</param>
/// <param name="disposeReader">if set to <c>true</c> [dispose reader].</param>
internal static void CleanupDataReader(IDataReader reader, IQuery queryExecuted, bool disposeReader)
{
	if(reader != null)
	{

FransBouma

// in the generated massive file for fluent mappings.
	
	public partial class FluentModel : OpenAccessContext, IFluentModelUnitOfWork
	{
		private static string connectionStringName = @"AdventureWorksConnection";

		private static BackendConfiguration backend = GetBackendConfiguration();

// The line below is generated by the Telerik 'wizard' (which should actually be called 'dumbass') and causes the code to recreate the mapping model
// every time.

FransBouma

object newValueInType = newValue;
string newValueAsString = newValue as string;
if(type == typeof(DateTimeOffset))
{
	newValueInType = DateTimeOffset.Parse(newValueAsString);
}
if(type == typeof(Guid))
{
	newValueInType = Guid.Parse(newValueAsString);
}

FransBouma

// Generated linq queries:

/// <summary>Gets the query to fetch the typed list OneToManyPocoLinq</summary>
public IQueryable<Northwind.Adapter.TypedListClasses.OneToManyPocoLinqRow> GetOneToManyPocoLinqTypedList()
{
	var current0 = this.Customer;
	var current1 = from c in current0
			join o in this.Order on c.CustomerId equals o.CustomerId
			join od in this.OrderDetails on o.OrderId equals od.OrderId
			select new {o, c, od };

FransBouma

// these lambda's are used in e.g. projections in typed queries to materialize object arrays into typed objects.
// running this 100000 times at runtime takes 20551ms
System.Linq.Expressions.Expression<Func<OrderPocoQsRow>> l = () => new NW26.Adapter.TypedViewClasses.OrderPocoQsRow()
{
	CustomerId = OrderPocoQsFields.CustomerId.ToValue<System.String>(),
	EmployeeId = OrderPocoQsFields.EmployeeId.ToValue<Nullable<System.Int32>>(),
	Freight = OrderPocoQsFields.Freight.ToValue<Nullable<System.Decimal>>(),
	OrderDate = OrderPocoQsFields.OrderDate.ToValue<Nullable<System.DateTime>>(),
	OrderId = OrderPocoQsFields.OrderId.ToValue<System.Int32>(),
	RequiredDate = OrderPocoQsFields.RequiredDate.ToValue<Nullable<System.DateTime>>(),

FransBouma

[Test]
public void TypedViewPocoTest1()
{
	using(var adapter = new DataAccessAdapter())
	{
		var metaData = new LinqMetaData(adapter);
		var q = (from i in metaData.InvoicesPocoLinq
					where i.Country == "USA"
					select i)

FransBouma

Non-change tracking individual fetches (100 elements, 10 runs), no caching
------------------------------------------------------------------------------
Handcoded materializer using DbDataReader                           : 0,79ms per individual fetch
PetaPoco Fast v4.0.3                                                : 0,90ms per individual fetch
LLBLGen Pro v4.2.0.0 (v4.2.14.0424), Poco typed view with QuerySpec : 0,95ms per individual fetch
LLBLGen Pro v4.2.0.0 (v4.2.14.0424), typed view                     : 1,21ms per individual fetch
Linq to Sql v4.0.0.0 (v4.0.30319.33440)                             : 2,53ms per individual fetch
LLBLGen Pro v4.2.0.0 (v4.2.14.0424), Poco typed view with Linq      : 6,50ms per individual fetch

FransBouma

public static class QueryableChunked
{
	public static IEnumerable<T> InRange<T, TValue>(this IQueryable<T> source,
				System.Linq.Expressions.Expression<Func<T, TValue>> selector, int blockSize,
				IEnumerable<TValue> values)
	{
		MethodInfo method = null;
		foreach(MethodInfo tmp in typeof(Enumerable).GetMethods(BindingFlags.Public | BindingFlags.Static))
		{
			if(tmp.Name == "Contains" && tmp.IsGenericMethodDefinition && tmp.GetParameters().Length == 2)