public IEnumerable <T> ExecuteCollection <T>(QueryModel queryModel)
{
BuiltQuery builtQuery;
if (EntityHelpers.IsConstant(typeof(T)))
{
builtQuery = BuiltQuery.Constant(typeof(T));
}
else
{
var builder = new QueryBuilder(typeRegistry);
queryModel.Accept(new QueryModelVisitor(builder));
builtQuery = builder.Build();
}
return(execute(builtQuery).Cast <T>());
}