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How do I update an entity using spring-data-jpa?
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well yes I think I know this. I was strictly referring to spring-data-jpa. I have two problems with this answer now: 1) business values are not supposed to be part of the primary key - that is a known thing, right? So having the firstname and la...
Group a list of objects by an attribute : Java
... .stream()
.collect(Collectors.groupingBy(keyFunction));
}
Now you can groupBy anything with this. For the use case here in the question
Map<String, List<Student>> map = groupBy(studlist, Student::getLocation);
Maybe you would like to look into this also Guide to Java 8 g...
Key hash for Android-Facebook app
...d it.It contain nothing except one file with some data. Please help me to know more.
– Ravikiran
Feb 8 '12 at 8:42
2
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How can I get a list of Git branches, ordered by most recent commit?
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And now you can do this with git branch, so getting local, remote or all branches works like on git-branch (i.e. -r, -a). git branch -r --sort=committerdate --format='%(HEAD) %(color:yellow)%(refname:short)%(color:reset) - %(colo...
Generating a random password in php
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RandomLib has not been updated for over two years now. Using it on a recent PHP build (7.1.25 in my case) throws deprecation warnings for various mcrypt_* functions. I can see on an issue thread that you have forked the library due not being able to get a hold of @ircmaxell,...
Collect successive pairs from a stream
...r;
return pair;
}
}).skip(1); // drop first null
Now you can limit your stream to the length you want
pairStream.limit(1_000_000).forEach(i -> System.out.println(i));
P.S. I hope there is better solution, something like clojure (partition 2 1 stream)
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Android LinearLayout : Add border with shadow around a LinearLayout
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okay, i know this is way too late. but i had the same requirement. i solved like this
1.First create a xml file (example: border_shadow.xml) in "drawable"
folder and copy the below code into it.
<?xml version="1.0" encoding...
SQL Server 2008 can't login with newly created user
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I think it's good because it lets potential responders know that the problem is resolved. It also contributes to a growing body of documentation that other developers can use to find their own answers in the future.
– Joe Mayo
Nov 13 '09 at ...
How to force a web browser NOT to cache images
...e current time on the server.
Generate time by Javascript with performance.now() or by Python with time.time()
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Clear a terminal screen for real
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@SDX2000 OK ... I know you specified Ubuntu, and I assumed that these would behave similar on all "modern" terminal emulators. I initially tested on my MAC's terminal and it did not reset there, but it did reset on my Centos Linux.
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