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JPA: How to have one-to-many relation of the same Entity type
...accordingly. Updating only one side of a bidirectional relationship is an error under JPA. Always update both sides of the relationship. This is written unambiguously on page 42 of the JPA 2.0 spec:
Note that it is the application that bears responsibility for maintaining the consistency of r...
Why is SELECT * considered harmful?
...rt in the long run.
If code depends on column order, SELECT * will hide an error waiting to happen if a table had its column order changed.
Even if you need every column at the time the query is written, that might not be the case in the future
the usage complicates profiling
Design
SELECT * is ...
X-Frame-Options Allow-From multiple domains
...tion to avoid adding allow-from when the browser is Chrome (it produces an error on the debug - console, which can quickly fill the console up, or make the application slow). That also means you need to modify the ASP.NET browser detection, as it wrongly identifies Edge as Chrome.
This can be done...
HEAD and ORIG_HEAD in Git
...ems with multiple commits, like running 'git am' on the wrong branch or an error in the commits that is more easily fixed by changing the mailbox (e.g. +errors in the "From:" lines).
In addition, merge always sets '.git/ORIG_HEAD' to the original state of HEAD so a problematic merge can be remo...
how do you push only some of your local git commits?
...e on is pushed. In your example (a detached head), you would have got this error message, rather than accidentally pushing the wrong commits:
error: unable to push to unqualified destination: HEAD
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I just discovered why all ASP.Net websites are slow, and I am trying to work out what to do about it
...based on ConcurrentDictionary) if you want to avoid difficult-to-reproduce errors under load.
– Joel Mueller
Sep 7 '10 at 18:19
3
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How do I create a right click context menu in Java Swing?
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After using the above code, I get the error saying that "The method addMouseListener(MouseListener) in the type Figure is not applicable for the arguments (PopClickListener)" Regards, Vinay
– user1035905
Nov 8 '11 at 15:31
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Is it better to call ToList() or ToArray() in LINQ queries?
...00.19.56404), X64 RyuJIT
| Method | Count | Mean | Error | StdDev | Median | Ratio | RatioSD | Gen 0 | Gen 1 | Gen 2 | Allocated |
|---------- |------ |--------------:|------------:|------------:|--------------:|------:|--------:|--------:|------:|------:|--...
Injecting $scope into an angular service function()
.... show a notification.
}, function (err) {
// Handle the error.
});
};
}
]);
One thing you should be careful about when using this approach is to never re-assign the service's array, because then any other components (e.g. scopes) will be still referencing th...
Do you put unit tests in same project or another project?
...n the same project. When you build a assembly that includes unitTests, any errors in the unitTest will give you an compilereerror, so you must keep your unittest up-to-date, just to build. Having unittest in a seperate project, might cause some developers to forget building the unittest-project, and...