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Why do I need Transaction in Hibernate for read-only operations?
... This stackoverflow.com/q/34797480/179850 seems to contradict a bit your affirmation that read only transactions have great performance benefit. At least, it doesn't seem to be the case in the context of hibernate.
– nimai
May 15 at 21:40
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Check if an apt-get package is installed and then install it if it's not on Linux
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To be a little more explicit, here's a bit of bash script that checks for a package and installs it if required. Of course, you can do other things upon finding that the package is missing, such as simply exiting with an error code.
REQUIRED_PKG="some-package"
PK...
Who is “us” and who is “them” according to Git?
...rs the upstream branch, and them is the branch you're moving about. It's a bit counter-intuitive in case of a rebase.
The reason is that Git uses the same merge-engine for rebase, and it's actually cherry-picking your stuff into the upstream branch. us = into, them = from.
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How do I remove all non alphanumeric characters from a string except dash?
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answered Jul 9 '10 at 6:50
AmarghoshAmarghosh
53.8k1111 gold badges8585 silver badges118118 bronze badges
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unix - head AND tail of file
Say you have a txt file, what is the command to view the top 10 lines and bottom 10 lines of file simultaneously?
20 Answer...
How to split text without spaces into list of words?
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This code has made me numb. I didn't understand a bit. I don't understand log things. But I tested this code on my computer. You are a genius.
– Aditya Singh
Sep 10 '16 at 19:22
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How do I install jmeter on a Mac?
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Scadge
8,10122 gold badges2222 silver badges3636 bronze badges
answered May 20 '14 at 0:42
Adam MendozaAdam Me...
What is a Java ClassLoader?
...ow about class loaders, it will just work.
Still, it is helpful to know a bit about class loaders and class loading to better understand what goes on behind the scenes. As an example, "static initializers" will run when a class is loaded, so to understand when they will run, you need to know how th...
How to send POST request in JSON using HTTPClient in Android?
...ame and like this object['name'];. The example from the article uses this bit of JSON.
The Parts
A fan object with email as a key and foo@bar.com as a value
{
fan:
{
email : 'foo@bar.com'
}
}
So the object equivalent would be fan.email; or fan['email'];. Both would have the same...
Android update activity UI from service
...=null;
}
public void updateSomething() {//etc... }
}
I left out bits for thread safety, which is essential. Make sure to use locks or something like that when checking and using or changing the fragment references on the service.
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