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Setting default values for columns in JPA
Is it possible to set a default value for columns in JPA, and if, how is it done using annotations?
18 Answers
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.NET WPF Remember window size between sessions
...ifferent type or structure will be needed.
Initialise the first two to 0 and the second two to the default size of your application, and the last one to false.
Create a Window_OnSourceInitialized event handler and add the following:
this.Top = Properties.Settings.Default.Top;
this.Left = Propert...
Why is a combiner needed for reduce method that converts type in java 8
I'm having trouble fully understanding the role that the combiner fulfils in Streams reduce method.
4 Answers
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Running shell command and capturing the output
I want to write a function that will execute a shell command and return its output as a string , no matter, is it an error or success message. I just want to get the same result that I would have gotten with the command line.
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Difference between Role and GrantedAuthority in Spring Security
There are concepts and implementations in Spring Security, such as the GrantedAuthority interface to get an authority to authorize/control an access.
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How to shrink the .git folder
...gressive --prune, which will perform garbage collection in your repository and prune old objects. do you have a lot of binary files (archives, images, executables) which change often? those usually lead to huge .git folders (remember, git stores snapshots for each revision and binary files compress ...
Git rebase --continue complains even when all merge conflicts have been resolved
...urrently being applied to the branch you rebase on. After fixing the patch and doing
git add your/conflicted/file
git status
you will get a (usually green) line showing the modified file
modified: your/conflicted/file
git rebase --continue will work fine in this situation.
Sometimes, h...
Why do you create a View in a database?
When and Why does some one decide that they need to create a View in their database? Why not just run a normal stored procedure or select?
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Practical uses for AtomicInteger
I sort of understand that AtomicInteger and other Atomic variables allow concurrent accesses. In what cases is this class typically used though?
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Live-stream video from one android phone to another over WiFi
...nternet for days now on how to implement a video streaming feature from an android phone to another android phone over a WiFi connection but I can't seem to find anything useful. I looked on android developers for sample code, stackoverflow, google, android blogs but nothing. All I can find are some...