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Why do I need Transaction in Hibernate for read-only operations?
...do or don't want to read uncommitted changes, be exposed to phantom reads, etc.
To sum up - you can go both ways, but you need to understand consequences.
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Why does Twitter Bootstrap Use Pixels for Font Size?
...a great tool for prototyping and for non-public facing pages - admin areas etc. It can also be a great tool for public-facing sites if the person using it understands how to style beyond its defaults. Like any tool it is easily abused, and I suppose the ease of use is what results in the amount of (...
Why Func instead of Predicate?
...now what "predicate" means - otherwise you need to look at object-browser (etc) to find the signatute.
Conversely Func<T,bool> follows a standard pattern; I can immediately tell that this is a function that takes a T and returns a bool - don't need to understand any terminology - just apply ...
Abstract class in Java
...nterface (100%)
Abstract class with constructors, data members, methods, etc
abstract class GraphicObject {
GraphicObject (){
System.out.println("GraphicObject is created");
}
void moveTo(int y, int x) {
System.out.println("Change position according to "+ x+ " and " + y);
}
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Why does C++ need a separate header file?
...g the code between different units (different developers, teams, companies etc..)
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How to resize superview to fit all subviews with autolayout?
...eft with default margin, width and height are dynamic based on text, font, etc (i.e. UILabel has an intrinsicContentSize))
[self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|-[_myLabel]" options:0 metrics:0 views:viewsDictionary]];
[self.view addConstraints:[NSLay...
To Workflow or Not to Workflow?
...he visual effect that it has: it keeps me away from the details of if/else etc constructs and makes the business rules apparent in a way that doesn't make you forced to dive into lines of code to know what's going on or how to fix some bug.
By the way, the project that we worked on is very similar ...
How to remove convexity defects in a Sudoku square?
...t: Solving a Sudoku from an input image using OpenCV (as in Google goggles etc). And I have completed the task, but at the end I found a little problem for which I came here.
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MyISAM versus InnoDB [closed]
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People often talk about performance, reads vs. writes, foreign keys, etc. but there's one other must-have feature for a storage engine in my opinion: atomic updates.
Try this:
Issue an UPDATE against your MyISAM table that takes 5 seconds.
While the UPDATE is in progress, say 2.5 seconds i...
How to filter specific apps for ACTION_SEND intent (and set a different text for each app)
...roid.gm")) {
Intent intent = new Intent();
intent.setComponent(new ComponentName(packageName, ri.activityInfo.name));
intent.setAction(Intent.ACTION_SEND);
intent.setType("text/plain");
if(packageName.contains("twitter")) {
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