The tag has no usage guidance.

learn more… | top users | synonyms

9
votes
2answers
21k views

When should I use StringBuilder or StringBuffer?

In a production web application, my fellow programmers used StringBuffer everywhere. Now I am taking care of application development and corrections. After reading StringBuilder and StringBuffer I ...
4
votes
1answer
187 views

Asynchronous update design/interaction patterns

These days many apps support asynchronous updates. For example, if you're looking at a list of widgets and you delete one of them then rather than wait for the roundtrip to the server, the app can ...
10
votes
4answers
3k views

How do you keep code with continuations/callbacks readable?

Summary: Are there some well-established best-practice patterns that I can follow to keep my code readable in spite of using asynchronous code and callbacks? I'm using a JavaScript library that ...
2
votes
2answers
927 views

What's the best practice for async APIs that return futures on Scala?

I have started a project to write an async PostgreSQL driver on Scala and to be async, I need to accept callbacks and use futures, but then accepting a callback and a future makes the code cumbersome ...
4
votes
1answer
446 views

Cross-process asynchronous messages in .NET

(Asking this here instead of SO because I don't even know what technology to tag it with :)) My team is about to embark on a project to convert a large part of our code base to use asynchronous file ...
4
votes
2answers
4k views

How do you work with Asynchronous functions, recursively?

I am currently working on FLEX and have to call a web services. once I have the result, I have to call the web service again, with the previous result as the input. A compounding problem, is that ...
0
votes
2answers
1k views

How to present asynchronous state change in chart or diagram?

I started to study about state transition chart. As I see, it assumes all state transition is done instantly with no time consuming. But in most of my case, I'm heavily depending on asynchronous I/O, ...
16
votes
3answers
8k views

How will C# 5 async support help UI thread synchronization issues?

I heard somewhere that C# 5 async-await will be so awesome that you will not have to worry about doing this: if (InvokeRequired) { BeginInvoke(...); return; } // do your stuff here It looks ...
5
votes
2answers
670 views

How can I design an efficient moderation system for comments?

Here's the job I want to do: My project is a website where there will be a lot of comments. Those comments will be moderated: a moderator will connect, see comments and accept or refuse them. I need ...
13
votes
6answers
2k views

Solutions to C# 5 async re-entrancy

So, something's been bugging me about the new async support in C# 5: The user presses a button which starts an async operation. The call returns immediately and the message pump starts running again ...
1
vote
1answer
2k views

Should we (still) consider a synced XMLHTTPRequest bad practice?

As you may know, XMLHTTPRequest can be used synchronously or asynchronously, but synchronized requests have always been considered bad practice, and I've always agreed with that. Not only is the ...
3
votes
1answer
332 views

How can I use Windows Workflow for validation of a Silverlight application?

I want to use Windows Workflow to provide a validation service. The validation that will be provided may have multiple tiers with chaining and redirecting to other stages of validation. The ...
3
votes
1answer
433 views

using blocking APIs with non-blocking server

We are using Tornado for our system (behind nginx) -- and everything is working fine. Now we need to integrate a client lib (for Neo4j Graph DB) into our system. The problem is that it is blocking. ...
4
votes
2answers
1k views

How do you decide to Queue/Dispatch events Sync or Async? (in Observer Pattern)

Consider the following elements in an event-driven architecture: Observable Object Event Dispatcher Observer(Listener) Now, we have two messages: From Observable Object to Event Dispatcher From ...
3
votes
4answers
651 views

Where was “async” all these days? [closed]

It was started with C# 5's new keyword "async". And now I see this async programming everywhere from Javascript to C++, mostly from Microsoft. And from various discussions I came to know, this is a ...
9
votes
3answers
2k views

Choosing a JavaScript Asynch-Loader [closed]

I’ve been looking at various asynchronous resource-loaders and I’m not sure which one to use yet. Where I work we have disparate group-efforts whose class-modules may use different versions of jQuery ...
1
vote
5answers
586 views

Ways of handling asynchronous receive calls

I am implementing a primitive message-passing system. Currently, I am designing a receive function for async calls. Can I implement such a async receive function without using callback functions?
8
votes
2answers
1k views

Best practices when managing long running asynchronous jobs

I am in the design phase of a project where the end user will submit a request from a web page that will spawn a long running asynchronous processed job. Is there a "best practice" for this problem? ...
1
vote
1answer
639 views

How is the “evented-io” in node.js any different from the windows event model

I'm wondering how the "evented-io" in node.js any different from the windows async IO model? Is the callback from node.js executed on a thread, if not, where is it run? I don't mean to question the ...
20
votes
5answers
3k views

Asynchronous Programming in Functional Languages

I'm mostly a C/C++ programmer, which means that the majority of my experience is with procedural and object-oriented paradigms. However, as many C++ programmers are aware, C++ has shifted in emphasis ...
2
votes
3answers
632 views

What is meant by XML/XSLT/XPath and asynchronous programming?

I understand that (1) XML/XSLT/XPath and (2) asynchronous programming may not be related to one another. My questions are: When a C# developer job is advertised saying: "the following skill is ...
3
votes
3answers
324 views

What scenarios are implementations of Object Management Group (OMG) Data Distribution Service best suited for?

I've always been a big fan of asynchronous messaging and pub/sub implementations, but coming from a Java background, I'm most familiar with using JMS based messaging systems, such as JBoss MQ, ...