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Which annotation should I use: @IdClass or @EmbeddedId
...stence API) specification has 2 different ways to specify entity composite keys: @IdClass and @EmbeddedId .
7 Answers
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What is the point of “final class” in Java?
I am reading a book about Java and it says that you can declare the whole class as final . I cannot think of anything where I'd use this.
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Force to open “Save As…” popup open at text link click for PDF in HTML
I have some big size PDF catalogs at my website, and I need to link these as download. When I googled, I found such a thing noted below. It should open the " Save As... " popup at link click...
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How do I raise the same Exception with a custom message in Python?
I have this try block in my code:
12 Answers
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Make XAMPP/Apache serve file outside of htdocs [closed]
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Ok, per pix0r's, Sparks' and Dave's answers it looks like there are three ways to do this:
Virtual Hosts
Open C:\xampp\apache\conf\extra\httpd-vhosts.conf.
Un-comment ~line 19 (NameVirtualHost *:80).
Add your virtual host...
Why wasn't PyPy included in standard Python?
I was looking at PyPy and I was just wondering why it hasn't been adopted into the mainline Python distributions. Wouldn't things like JIT compilation and lower memory footprint greatly improve the speeds of all Python code?
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How do I center an SVG in a div?
...00px. The SVG has its margin-left and margin-right set to auto. Doesn't work, it just acts as if the left margin is 0 (default).
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Replace first occurrence of pattern in a string [duplicate]
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I think you can use the overload of Regex.Replace to specify the maximum number of times to replace...
var regex = new Regex(Regex.Escape("o"));
var newText = regex.Replace("Hello World", "Foo", 1);
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What does a colon following a C++ constructor name do? [duplicate]
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This means that the constructor can be called with no parameters. This makes it a default constructor, i.e., one which will be called by default when you write MyClass someObject;.
The part : m_classID(-1), m_userdata(0) is called initialization list. It is a way to initialize some fields of you...
Pushing an existing Git repository to SVN
I've been doing all my work in Git and pushing to GitHub. I've been very happy with both the software and the site, and I have no wish to change my working practices at this point.
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