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Why is Hibernate Open Session in View considered a bad practice?
...ll need N + 1 queries, where N is the number of lazy associations. If your screen presents tabular data, reading Hibernate’s log is a big hint that you do not do as you should
this completely defeats layered architecture, since you sully your nails with DB in the presentation layer. This is a co...
How to implement the activity stream in a social network
...tivities in there, but you could store enough for most of the commonly-hit screens on your site. The most recent 100 for each user or something like that. With Redis in the mix, it might work like this:
Create your MySQL activity record
For each friend of the user who created the activity, push th...
What are the different usecases of PNG vs. GIF vs. JPEG vs. SVG?
... SVG is perfect for logos and icons you wish to retain sharpness on Retina screens or at different sizes. It also means a small SVG logo can be used at a much larger (bigger) size without degradation in image quality -- something that would require a separate larger (in terms of filesize) file with ...
How do I capture the output into a variable from an external process in PowerShell?
...command> | Out-String
To capture output in a variable and print to the screen:
<command> | Tee-Object -Variable cmdOutput # Note how the var name is NOT $-prefixed
Or, if <command> is a cmdlet or advanced function, you can use common parameter
-OutVariable / -ov:
<command> -Ou...
How can I maintain fragment state when added to the back stack?
...ment which will make the topmost(SourceFragment's) view to appear over the screen.
COMMENT: As I said it is not a complete solution as it doesn't remove the view of Source fragment and hence occupying more memory than usual. But still, serve the purpose. Also, we are using a totally different mecha...
What does middleware and app.use actually mean in Expressjs?
...pplication. The way I'd like to think about it, is a series of 'checks/pre-screens' that the request goes through before the it is handled by the application. For e.g, Middlewares would be a good fit to determine if the request is authenticated before it proceeds to the application and return the lo...
Aspect Oriented Programming vs. Object-Oriented Programming
...ged, thus the graphics changed and thus the graphics need to be updated on screen. Assume to repaint the graphics you must call "Display.update()". The classical approach is to solve this by adding more code. At the end of each set method you write
void set...(...) {
:
:
Display.update()...
Evil Mode best practice? [closed]
...is-command-keys)))))
Unfortunately, these overlap with the vim "move one screen up or down" operations. However, I have become comfortable using the following instead:
(define-key evil-normal-state-map (kbd "DEL") (lambda ()
(interactive)
(previous-line 10)...
Server polling with AngularJS
...ion() {
// Assign to scope within callback to avoid data flickering on screen
Data.query({ someField: $scope.fieldValue }, function(dataElements){
$scope.data = dataElements;
});
};
var promise = $interval(refreshData, 1000);
// Cancel interval on page changes
$scope.$on('$dest...
Differences between Intent and PendingIntent
...ive to a foreign application (e.g. NotificationManager, AlarmManager, Home Screen AppWidgetManager, or other 3rd party applications), which allows the foreign application to use your application's permissions to execute a predefined piece of code.
By giving a PendingIntent to another application...