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When and why JPA entities should implement Serializable interface?
...not expired in the mean time) when the application reload is completed.
In order to successfully restore the state of session attributes, all such attributes MUST implement the java.io.Serializable interface.
So, if the entity is stored in the HttpSession, it should implement Serializable.
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Setting the zoom level for a MKMapView
... very simple and does the trick. Use MKCoordinateRegionMakeWithDistance in order to set the distance in meters vertically and horizontally to get the desired zoom. And then of course when you update your location you'll get the right coordinates, or you can specify it directly in the CLLocationCoord...
What's the difference between RANK() and DENSE_RANK() functions in oracle?
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RANK gives you the ranking within your ordered partition. Ties are assigned the same rank, with the next ranking(s) skipped. So, if you have 3 items at rank 2, the next rank listed would be ranked 5.
DENSE_RANK again gives you the ranking within your ordered part...
How to convert an xml string to a dictionary?
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If you need to get an ordered dict from an XML file, please, you can use this same example with few modifications (see my response below): stackoverflow.com/questions/2148119/…
– serfer2
Sep 29 '15 at 11:1...
Why does Twitter Bootstrap Use Pixels for Font Size?
...es need to increase the size of the text on a page fairly significantly in order to read it. However, when you use page zoom, you end up having to scroll left and right in order to read text and that gets old really fast. It's very easy to lose your place when you have to do that."
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ActiveRecord.find(array_of_ids), preserving order
When you do Something.find(array_of_ids) in Rails, the order of the resulting array does not depend on the order of array_of_ids .
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Protecting executable from reverse engineering?
...erse-engineering. After all, the computer has to be able to decipher it in order to run it, and a human is simply a slower computer.
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Code-first vs Model/Database-first [closed]
...tions
which are timestamped and labeled with a descriptor to help with
ordering of versions. When you call add-migration from the package
manager, a new migration file will be generated containing everything
that has changed in your code model automatically in both an UP() and
DOWN() funct...
Peak detection in a 2D array
...tains the peaks we are
#looking for, but also the background.
#In order to isolate the peaks we must remove the background from the mask.
#we create the mask of the background
background = (image==0)
#a little technicality: we must erode the background in order to
#succes...
How to set caret(cursor) position in contenteditable element (div)?
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In order to be able to test your different solutions quickly, could you edit your answer into runnable code snippets? Thank you in advance.
– Basj
Jun 12 '18 at 11:40
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