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javax.faces.application.ViewExpiredException: View could not be restored
...side state configured and/or when server re-generates the AES key during restart, see also Getting ViewExpiredException in clustered environment while state saving method is set to client and user session is valid how to solve it.
Regardless of the solution, make sure you do not use enableRestoreVi...
SQLAlchemy: What's the difference between flush() and commit()?
...e.
When session.autocommit == True:
You can't call commit() if you haven't started a transaction (which you probably haven't since you would probably only use this mode to avoid manually managing transactions).
In this mode, you must call flush() to save your ORM changes. The flush effectively also ...
reference assignment is atomic so why is Interlocked.Exchange(ref Object, Object) needed?
...ject if it interests you. Joe Duffy's book and his blog are good places to start. My rule: don't use multithreading. If you must, use immutable data structures. If you can't, use locks. Only when you must have mutable data without locks should you consider low-lock techniques.
–...
What's the right OAuth 2.0 flow for a mobile app
...
FYI the document references in the start of this Answer if not draft anymore OAuth 2.0 for Native Apps - tools.ietf.org/html/rfc8252
– Kostiantyn Sokolinskyi
Jan 28 '18 at 10:58
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How does HTTP file upload work?
...399963166993862150
This is because the standard requires the boundary to start with two dashes --. The other dashes appear to be just how Firefox chose to implement the arbitrary boundary. RFC 7578 clearly mentions that those two leading dashes -- are required:
4.1. "Boundary" Parameter of mu...
Why not use tables for layout in HTML? [closed]
... once you get into a shop where they are two distinct roles the advantages start to become clearer.
If you know what you're doing and have good tools, CSS really does have significant advantages over tables for layout. And while each item by itself may not justify abandoning tables, taken together...
How to serve an image using nodejs
... I do not know why anyone would use Express. I did too at the start probably because everyone else did. Then I realized that using Node's http module is the right approach. That is what it is provided for. You get a lot of flexibility. You understand HTTP protocol and you can debug eas...
ServiceStack vs ASP.Net Web API [closed]
... Project provides the source code for all of ServiceStack's live demos and Starter Templates whilst the SocialBoostsrapApi project provides a great starting point of developing a Backbone.js Single Page App with ServiceStack and MVC based on Twitters Bootstrap template.
In addition to the above a t...
What is “Argument-Dependent Lookup” (aka ADL, or “Koenig Lookup”)?
...
Maybe it is best to start with the why, and only then go to the how.
When namespaces were introduced, the idea was to have everything defined in namespaces, so that separate libraries don't interfere with each other. However that introduced a p...
Mock framework vs MS Fakes frameworks
... DateTime(fixedYear, 1, 1); };
}
My worry with shims is that people will start seeing them as "an easier way to unit test" because it doesn't force you to write code the way you should. For a more complete write-up on this concept see this post of mine:
https://jcoop.io/2012/05/21/solid-code-...