Say, I have a data object: class ValueRef { double value; } Where each data object is stored in a master collection: Collection<ValueRef> masterList = ...; I also have a collection of job...

But I am synchronizing on the 'roster' object everywhere it gets new'ed. How come ? The offending code: public Roster getRoster() { if (roster == null) { return null; } if (!roster.rosterIn...

I have three AJAX requests firing one after another, and I'd like to be able to echo back all the data simultaneously. $.ajax ({ type: "POST", url: "page1.php", data: "var1=" + var1, success:...

Issue After importing an Eclipse project from a cloned git repository, I make some changes and commit - and wtf? I get a ".git" folder added to the project, the whole shebang with the heads and ref...

How to synchronize two different methods from the same class in order to lock on the same object? Here is an example: public class MyClass extends Thread implements Observer{ public List<Anothe...

Recently, I have been working with Ruby's threads, and have uncovered a slightly unexpected behaviour. In a critical section, calling raise causes the mutex to release. I could expect this of the s...

I have a distributed java application and I want to send the database data between two databases which are in seperate computer systems or android devices. Which is the best way to transfer tha tab...

I have this (much much simplier) code on my app didFinishLaunchingWithOptions : NSDictionary *userDefaultsDefaults = [NSDictionary dictionaryWithContentsOfFile:[[NSBundle mainBundle] pathForReso...

I have a an application that has 2 parts. A service which creates content. An application that uses the content Each of these run as different processes. The problem is that both of them share ...

I'm new to PHP, so to get started I've decided to implement a singleton. While I am able to recreate the singleton pattern in php, but I am not sure how to implement double-checked locking. Is th...

I've set up the remote server so clicking on the file will download it to my local folder. After I made some changes I have to click on synchronize with server etc. Is there a way to synchronize w...

I load from NSUserDefaults in my object's init method. Can I save to NSUserDefaults in my object's dealloc method? Something exactly like: -(void)dealloc { NSUserDefaults *userDefaults = [NSUser...

I've installed Eclipse PDT Helios SR1 GTK for 64bit Linux (Ubuntu Maverick clean install). I added the Subversive plugin for using Subversion, and installed the SVNKit 1.3.2 connector. I'm using Su...

My app consist of the main-process and two threads, all running concurrently and making use of three fifo-queues: The fifo-q's are Qmain, Q1 and Q2. Internally the queues each use a counter that i...

I'm looking into writing simple graphics code in Android and I've noticed some synchronized() blocks. What is the reasoning behind this and how do I know when I should be "synchronizing" my code? ...

It makes me confused when I read the article by Zarko Gajic today: "Multithreaded Delphi Database Queries" Article URL: http://delphi.about.com/od/kbthread/a/query_threading.htm Sourecode: http:...

What's the best javascript library, or plugin or extension to a library, that has implemented autosaving functionality? The specific need is to be able to 'save' a data grid. Think gmail and Googl...