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Persistence unit as RESOURCE_LOCAL or JTA?
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JPA implementations have the choice of managing transactions themselves (RESOURCE_LOCAL), or having them managed by the application server's JTA implementation.
In most cases, RESOURCE_LOCAL is fine. This would use basic JDBC-level t...
Creating Threads in python
I have a script and I want one function to run at the same time as the other.
6 Answers
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What is Linux’s native GUI API?
...dow server; there is also XCB.
Toolkit libraries such as GTK+ (used by GNOME) and Qt (used by KDE), built on top of Xlib, are used because they are easier to program with. For example they give you a consistent look and feel across applications, make it easier to use drag-and-drop, provide componen...
Regex exactly n OR m times
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There is no single quantifier that means "exactly m or n times". The way you are doing it is fine.
An alternative is:
X{m}(X{k})?
where m < n and k is the value of n-m.
share
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Why do assignment statements return a value?
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To my understanding, assignment s = "Hello"; should only cause "Hello" to be assigned to s, but the operation shouldn’t return any value.
Your understanding is 100% incorrect. Can you explain why you believe this false thing?
What is the reason...
In CMake, how can I test if the compiler is Clang?
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The cmake documentation states "This is used in determining the compiler and is subject to change". Otherwise, it would be perfect :-(
– leedm777
Apr 7 '12 at 15:19
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C++ Build Systems - What to use? [closed]
I'm looking at starting a new project in C++ - just in my own time initially - and I'm investigating the build systems that are available. It would appear that the answer is "Many, and they're all awful".
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Express.js - app.listen vs server.listen
...u want to reuse the HTTP server, for example to run socket.io within the same HTTP server instance:
var express = require('express');
var app = express();
var server = require('http').createServer(app);
var io = require('socket.io').listen(server);
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server.listen(1234);
However, app....
How do I target only Internet Explorer 10 for certain situations like Internet Explorer-specific CSS
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Perhaps you can try some jQuery like this:
if ($.browser.msie && $.browser.version === 10) {
$("html").addClass("ie10");
}
To use this method you must include the jQuery Migrate library because this function was removed from the main ...
What is the difference between old style and new style classes in Python?
...act that all old-style instances, independently of
their class, are implemented with a single built-in type, called
instance.
New-style classes were introduced in Python 2.2 to unify the concepts of class and type.
A new-style class is simply a user-defined type, no more, no less.
I...