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Transaction marked as rollback only: How do I find the cause
...at is right (you hadn't provided methodC in your first post). Both methodB and methodC use same TX and always the most specific @Transactional annotation is used, so when methodC throws the exception, surrounding TX will be marked as rollback-only. You can also use different propagation markers to p...
Do I need elements in persistence.xml?
...="OrderManagement">
<description>This unit manages orders and customers.
It does not rely on any vendor-specific features and can
therefore be deployed to any persistence provider.
</description>
<jta-data-source>jdbc/MyOrderDB<...
How do I compare strings in Java?
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However, I ran into a bug, changed one of them into .equals() instead, and it fixed the bug.
23 Answers
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Comparing two collections for equality irrespective of the order of items in them
...g answers, since it takes nulls into account, implements IEqualityComparer and has some efficiency and edge case checks. plus, it's Microsoft :)
public class MultiSetComparer<T> : IEqualityComparer<IEnumerable<T>>
{
private readonly IEqualityComparer<T> m_comparer;
p...
Should commit messages be written in present or past tense? [closed]
So which is it that you think is better and more intuitive?
12 Answers
12
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TypeError: not all arguments converted during string formatting python
The program is supposed to take in two names, and if they are the same length it should check if they are the same word. If it's the same word it will print "The names are the same" . If they are the same length but with different letters it will print "The names are different but the same length...
How do I create and access the global variables in Groovy?
I need to store a value in a variable in one method and then I need to use that value from that variable in another method or closure. How can I share this value?
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@media media query and ASP.NET MVC razor syntax clash
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use double @@ symbols. That will escape @ symbol and render @media correctly on client side
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Can you set a border opacity in CSS?
... */
}
The problem with this approach is that some browsers do not understand the rgba format and will not display any border at all if this is the entire declaration. The solution is to provide two border declarations. The first with a fake opacity, and the second with the actual. If a browser is ...
How do you list the active minor modes in emacs?
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C-h m or M-x describe-mode shows all the active minor modes (and major mode) and a brief description of each.
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