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Published on 2009-08-30T17:00:14Z
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2010/05/19
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Delay execution is almost always a boon. But then there are cases when it’s a problem and you resort to “fetch” (in Nhibernate) to eager fetch it.
Do you know practical situations when lazy evaluation can bite you back…?
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So, this question was just asked on SO:
http://stackoverflow.com/questions/2740001/how-to-handle-an-infinite-ienumerable
My sample code:
public static void Main(string[] args)
{
foreach (var item in Numbers().Take(10))
Console.WriteLine(item);
Console.ReadKey();
}
public static…
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What is wrong is the following method?
def someMethod(funcs: = Option[String]*) = {
...
}
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Delay execution is almost always a boon. But then there are cases when it’s a problem and you resort to “fetch” (in Nhibernate) to eager fetch it.
Do you know practical situations when lazy evaluation can bite you back…?
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Can anyone out there name a few books that address the topic of program execution models??
I want a book that can answer questions such as...
What is the difference between interpreted and compiled languages and what are the performance consequences at runtime??
What is the difference between lazy…
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First of all – shout out to Peter Adams – from the feedback I have gotten from him on the last few posts of F# that I have done – my mind has just been expanded. I did a blog post a few days ago about infinite sequences – I didn’t really understand what was going on with it, and I still don’t really…
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I'm teaching JEE, especially JPA, Spring and Spring MVC. As I have not so much experience in large projects, it is difficult to know what to present to students about optimisation of ORM.
At the present time, I present some classic optimisation tricks:
prepared statements (most of ORM implicitely…
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Just wondering what everyones thoughts on what ORM to use for SQL Azure?
I'm fairly comfortable using LINQ-to-SQL and I believe it is possible to get it working with SQL Azure. However, from my understanding (correct me if I'm wrong), no further improvements will be made to Linq-to-SQL in future…
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Hello,
although I read through the manual here:
http://www.doctrine-project.org/documentation/manual/1_2/hu/hierarchical-data
I couldn't find a way to move a node from a Leaf to become a Root node. Any clues?
The question is trivial for inserting a new node...but what about updating a node?
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I've been thinking for a while about defining several namespaces in one php file and so, having several classes inside this file.
Suppose, I want to implement something like Doctrine\ORM\Query\Expr:
Expr.php
Expr
|-- Andx.php
|-- Base.php
|-- Comparison.php
|-- Composite.php
|-- From.php
|-- Func…
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I want to remove the need for a username in the FOSUserBundle. My users will login using an email address only and I've added real name fields as part of the user entity.
I realised that I needed to redo the entire mapping as described here.
I think I've done it correctly but when I try to submit…
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