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Just what is Java EE really? [closed]
...scanned only once for all your classes instead of every library (EJB, JPA, etc) doing this scanning over and over itself. Also because of that, CDI annotations can be applied to EJB beans and JPA entity managers can be injected into them.
Why do I need something massive as JBoss just to compile sim...
What is the recommended approach towards multi-tenant databases in MongoDB?
... most of the NoSQL dbs I researched (CoachDB, Cassandra, CouchBase Server, etc.) due to the specifics of the database design.
Collections (or buckets or however they call it in different DBs) are not the same thing as security schemas in RDBMS despite they behave as container for documents they ar...
How do I find a default constraint using INFORMATION_SCHEMA?
...ven column. (For non-SQL Server users, you need the name of the default in order to drop it, and if you don't name the default constraint yourself, SQL Server creates some crazy name like "DF_TableN_Colum_95AFE4B5". To make it easier to change your schema in the future, always explicitly name your c...
Getting started with Haskell
...
I'm going to order this guide by the level of skill you have in Haskell, going from an absolute beginner right up to an expert. Note that this process will take many months (years?), so it is rather long.
Absolute Beginner
Firstly, Haskel...
How to set proxy for wget?
...
For all users of the system via the /etc/wgetrc or for the user only with the ~/.wgetrc file:
use_proxy=yes
http_proxy=127.0.0.1:8080
https_proxy=127.0.0.1:8080
or via -e options placed after the URL:
wget ... -e use_proxy=yes -e http_proxy=127.0.0.1:8080 .....
Efficient evaluation of a function at every cell of a NumPy array
...one would like to avoid possible cache misses if axis are handled in wrong order.
Numpy has already a machinery in place to process axes in the best possible order. One possibility to use this machinery is np.vectorize. However, numpy's documentation on np.vectorize states that it is "provided prim...
XMLHttpRequest cannot load file. Cross origin requests are only supported for HTTP
...get back to the C:\ Root directory - type cd/
type cd Drive:\Folder\Folder\etc to get to the folder where your .Html file is (or php, etc)
Check the path. type: path at the command prompt. You must see the path to the folder where python is located. For example, if python is in C:\Python27, then...
“Single-page” JS websites and SEO
...of it is that I use ERB or HAML templates (running Ruby on Rails, Sinatra, etc) for my server side render and to create the client side templates that Backbone can use, as well as for my Jasmine JavaScript specs. This cuts out the duplication of markup between the server side and the client side.
F...
What is the difference between Unidirectional and Bidirectional JPA and Hibernate associations?
...rectional, I think it would be better to call setGroup() from addUser() in order to hold both sides consistent.
– axtavt
Mar 19 '11 at 16:24
...
How do I make a textbox that only accepts numbers?
...32 input (it could be easily adapted for other types such as System.Int64, etc.). It supports copy/paste operations and negative numbers:
public class Int32TextBox : TextBox
{
protected override void OnKeyPress(KeyPressEventArgs e)
{
base.OnKeyPress(e);
NumberFormatInfo fi ...