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Cannot use identity column key generation with ( TABLE_PER_CLASS )
...is that you mix "table-per-class" inheritance and GenerationType.Auto.
Consider an identity column in MsSQL. It is column based. In a "table-per-class" strategy you use one table per class and each one has an ID.
Try:
@GeneratedValue(strategy = GenerationType.TABLE)
...
Check if object exists in JavaScript
...typeof will return something other than undefined. typeof always returns a string.
Therefore
if (typeof maybeObject != "undefined") {
alert("GOT THERE");
}
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Inheriting class methods from modules / mixins in Ruby
...e of methods. To support these things, you can give class_eval a heredoc (string) instead of a block: base.class_eval <<-'END'
– Paul Donohue
May 15 at 15:10
add a comm...
Error:(1, 0) Plugin with id 'com.android.application' not found
This is my first attempt at Android Studio. I installed 0.8.0 and updated to 0.8.2. As soon as a project is created I get the error message:
...
Having both a Created and Last Updated timestamp columns in MySQL 4.0
... the more interesting question would be WHY THE HECK DON'T they've not provided a way do this very commonly requested/needed functionality.
– Ray
Aug 2 '12 at 17:20
22
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Java: recommended solution for deep cloning/copying an instance
...ontrol over what to and what not to clone (for example using transient, or String[] ignoreProperties), so reinventing the wheel isn't preferred.
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Where is body in a nodejs http.get response?
...console.log('STATUS: ' + res.statusCode);
console.log('HEADERS: ' + JSON.stringify(res.headers));
res.setEncoding('utf8');
res.on('data', function (chunk) {
console.log('BODY: ' + chunk);
});
});
req.on('error', function(e) {
console.log('problem with request: ' + e.message);
});
// ...
How to run functions in parallel?
...
I used your code but the functions still didn't start at the same time.
– lmcadory
Aug 26 '11 at 16:26
4
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How can one use multi threading in PHP applications
...m the PHP documentation:
pthreads is an object-orientated API that provides all of the tools needed for multi-threading in PHP. PHP applications can create, read, write, execute and synchronize with Threads, Workers and Threaded objects.
Warning:
The pthreads extension cannot be used in a...
Android ViewPager - Show preview of page on left and right
I'm using Android's ViewPager . What I want to do is to show a preview of the page on both the left and the right. I've seen where I can use a negative pageMargin to show a preview of the right side.
...