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• Is there any advantage for using a library other than Hibernate for JPA?

  - by Jeduan Cornejo

  Hi, I've been using JPA for some time now and been in projects where we've used both Hibernate Annotations and Toplink Essentials. AFAIK the project leader chose Toplink because Netbeans had it integrated and seemed to be the easy thing to do. However when looking for help, most of the literature seemed to assume that you are using Hibernate as the JPA provider, so, the question is, is have you found any advantage, performance or otherwise for not using the de-facto standard for JPA, Hibernate?

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• Is it possible to 'talk' to servers in a Windows intranet and pull information? (.Net 4.0)

  - by naspinski

  I am attempting to make a program that will pull data such as OS, IP, Server Name, Websites, Databases, etc. in a server farm. Is there a .Net library that allows you to connect to servers and get information such as this with the proper authentication? I do not really know where to start, thank you. Most of the servers are 2003 standard/enterprise both x86 and x64.

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• Extend Javascript Date Object

  - by jAndy

  Hi Folks, I'm curious what would be the best practice to extend the Date constructor. The problem I'm facing is, that the Internet Explorer (< 7+8) can't parse a date like new Date('2010-05-11'); I have to admit that this is not a standard method to parse, anyways FireFox and Chrome perform well on that kind of date string. Now I'm wondering, should I just split/parse/rebuild the string before calling new Date() or is there a more elegant solution ?

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• Correct way to create a menu with shortcuts in WPF

  - by mattdekrey

  What is the correct/best way to create a menu with hotkey shortcuts? I simply want a File menu like Visual Studio's that has New, Open, Save, Save All, Exit, and a few other standard shortcuts. It seems that InputGestureText displays the appropriate text, but since it's called "Text" and doesn't seem to trigger events, I'm going to assume that isn't the right way to do it. The Command architecture also seems fairly bulky, so I don't want to head down that path if there is a better way.

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• Transition to C++0x from C++98

  - by Paul Nathan

  As someone who hasn't followed the C++0x - now C++1x - story and developments closely, I am considering that it is nearing the time when I need to come up to speed with the 'released' version. I also am not really interested in looking over the standard immediately. Therefore: What resources are there that give the "effective changelog" between language versions? What books/articles are there that probe into the use of the new features? (marked as community wiki, if there are other good questions that relate to the transition, put them up)

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• Nested/child collections filtering in Entity Framework (ver. 1 or 4)

  - by gius

  How to filter nested/child collections of entities when including them in EF? Example: Let's have standard Customer-Orders association. How to load all customers and include only their last three orders in their Orders collection? Is there something like AssociateWith function from L2S for EF?

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• Does a no-op "do nothing" function object exist in C++(0x)?

  - by dean

  I realize this is a ludicrous question for something that takes less than 2 seconds to implement. But I vaguely remember reading that one was introduced with the new standard. I grep'ed VC10's headers and came up with nothing. Can you help? It's bugging me! :)

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• Options for open source front end for C++

  - by Arpan

  I am looking for options for an open source C++ front end that I could customize for my requirements. I do not need the back end implementation, just that it would help to find a fast and relatively bug free C++ front end that supports most standard features. Any suggestions? [I did google, clang seems to be an option but I don't have any experience with llvm] Arpan

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• Delphi component you can't live without?

  - by Warren P

  Most delphi developers have a list of delphi components they wouldn't live without. Not including anything that ships with Delphi (standard VCL or included third-party software like Rave or Indy), what are the components you can't live without, be they commercial or open-source? I will refrain from adding my own answers unless this becomes a community wiki. One component name, or product name, per answer please. Please vote up on components and do not post duplicates.

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• How a script know his own name in bash?

  - by debugger

  I launch script.sh and inside it i want to know what is his name Is there a standard procedure to know the scripts name ? the idea is to be able to extract the name from teh full path + name contained in $0 Thanks

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• Issuing multiple requests using HTTP/1.1 Pipelining

  - by Robert S. Barnes

  When using HTTP/1.1 Pipelining what does the standard say about issuing multiple requests without waiting for each request to complete? What do servers do in practice? I ask because I once tried writing a client which would issue a batch of GET requests for multiple files and remember getting errors. I wasn't sure if it was due to me incorrectly issuing the GET's or needing to wait for each individual request to finish before issuing the next GET.

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• Opinions on commercial MVC controls

  - by Mark

  We are interested in the communities opinions on commercial MVC controls ie Telerik, Syncfusion. Which is fast, easy to use, stability, documentation, support and all that good stuff. We are about to start our second MVC project and are currently doing research into improving functionality and speed of development to 'standard' MVC. Any of your thoughts are much appreciated...

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• How to Create A Document Type Definition

  - by DaveDev

  Hi Guys I've been creating a lot of my own custom attributes in my XHTML documents lately, and am aware that because they are custom attributes, they won't validate against the W3C standard. Isn't it true that I can specify my own DTD to make it validate? If so, can anyone tell me what's involved in doing this in an ASP.NET MVC app? Thanks Dave

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• Asp.NET dropdownlist direction

  - by Dofs

  Is it possible with the standard asp:dropdownlist to make the list expand upwards instead of downwards, or do I need to create a custom control?

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• How to perform an action when file changed?

  - by ZeissS

  Hi, I want to create a script that checks an URL and perform an action (download + unzip) when the "Last-Modified" header of the remote file changed. I thought about fetching the header with curl but then I have to store it somewhere for each file and perform a date comparison. Does anyone have a different idea using (mostly) standard unix tools? thanks

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• Are parametrized calls/sanitization/escaping characters necessary for hashed password fields in SQL queries?

  - by Computerish

  When writing a login system for a website, it is standard to use some combination of parameterized calls, sanitizing the user input, and/or escaping special characters to prevent SQL injection attacks. Any good login system, however, should also hash (and possibly salt) every password before it goes into an SQL query, so is it still necessary to worry about SQL injection attacks in passwords? Doesn't a hash completely eliminate any possibility of an SQL injection attack on its own?

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• Is it allowed to call a remote web page during a click event?

  - by Blankman

  Is JavaScript allowed to call a remote web page during a click event? When viewing the click in firebug, the call turns red (i.e. error) but I can't see the error because the page redirects. So is it allowed to call a remote website (in my case, its a 1x1 image using a standard url like http://www.example.com/becon).

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• filename for class files: file.class.php or file.php?

  - by fayer

  i have seen a lot of coders choosing this filename convention: file.class.php. is this a standard of naming class files? just curious. so i know if i should follow it for all class files in the future. thanks

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• database transaction rollback processing in PHP

  - by user198729

  try { $con->beginTransaction(); $this->doSave($con); $con->commit(); } catch (Exception $e) { $con->rollBack(); throw $e; } The code above is quite standard an approach to deal with transactions, but my question is:what if $con->rollBack() also fails? It may cause db lock,right?If so,what's the perfect way to go?

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• can any one tell me how can we enable/ disable button by radio button in MVVM.

  - by atul gupta

  can any one tell me how can we enable/ disable button by radio button in MVVM. I have two radio Buttons (a) Standard Comparision (b) Custom Comparision and a Button BtnRestore. I want that if i select (a) then BtnRestore will be Disable, and if i select (b) then BtnRestore will be Enable.

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• ActionScript Calling Private Functions By Changing Public Variables?

  - by TheDarkIn1978

  i've never tried to do this before, so my head a swimming a bit. i'd like to have a public boolean called enabled in myClass custom class. if it's called to be changed, how do i trigger a function from the change? should i add an Event.CHANGE event listener to my variable? can i do that? or is there a more standard way?

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• Limiting the size of a python dictionary

  - by anthony

  I'd like to work with a dict in python, but limit the number of key/value pairs to X. In other words, if the dict is currently storing X key/value pairs and I perform an insertion, I would like one of the existing pairs to be dropped. It would be nice if it was the least recently inserted/accesses key but that's not completely necessary. If this exists in the standard library please save me some time and point it out!

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• python send/receive hex data via TCP socket

  - by Mike

  I have a ethenet access control device that is said to be able to communicate via TCP. How can i send a pachet by entering the HEX data, since this is what i have from their manual (a standard format for the communication packets sent and received after each command)

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• ANTLR C grammar, optional init_declarator_list?

  - by eisbaw

  Hello, In the ANSI C grammar for ANTLR v3 ( http://antlr.org/grammar/1153358328744/C.g ), how can init_declarator_list be optional in rule declaration ? Instead of: | declaration_specifiers init_declarator_list? ';' -I would say: | declaration_specifiers init_declarator_list ';' What part of the C standard allows statements like: int; EDIT: I just tried, it is allowed! Okay then, why is it allowed?

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• What is the most popular generic collection data structure library for C?

  - by Tom Dalling

  I'm looking for a C library that provides generic collection data structures such as lists, associative arrays, sets, etc. The library should be stable and well tested. I'm basically looking for something better than the crappy C standard library. What C libraries fit this description? EDIT: I'd prefer that the library was cross-platform, but failing that, anything that works on Mac/Linux.

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