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How can i get the session object if i have the entity-manager
...yManagerImpl) em.getDelegate()).getSession();
I agree, that's horrible, and the spec is to blame here (not clear enough).
JPA 2.0
With JPA 2.0, there is a new (and much better) EntityManager#unwrap(Class<T>) method that is to be preferred over EntityManager#getDelegate() for new applicati...
How can I obtain an 'unbalanced' grid of ggplots?
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I tried figuring it out with grid and thought I had it down but ended up failing (although looking now at the code in the function I cite below, I can see that I was really close ... :-)
The 'wq' package has a layOut function that will do it for you:
p1 <...
How to make a smooth image rotation in Android?
...imation to rotate an image that I'm using as a custom cyclical spinner in Android. Here's my rotate_indefinitely.xml file, which I placed in res/anim/ :
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File being used by another process after using File.Create()
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The File.Create method creates the file and opens a FileStream on the file. So your file is already open. You don't really need the file.Create method at all:
string filePath = @"c:\somefilename.txt";
using (StreamWriter sw = new StreamWriter(filePath, true))
{
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How do I escape curly braces for display on page when using AngularJS?
...answer, you should take extra precautions to make sure the solution works, and should provide compelling reasons why this answer is preferred to the widely accepted answer. Also, this doesn't directly answer the question anyway.
– Claies
Feb 17 '15 at 1:14
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Android: how do I check if activity is running?
...the same class running? What if you extend MyActivity with MyChildactivity and want to check if the child is active?
– Mister Smith
Sep 2 '13 at 10:27
2
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C++ Erase vector element by value rather than by position? [duplicate]
and lets say the values in the vector are this (in this order):
4 Answers
4
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Update multiple columns in SQL
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The "tiresome way" is standard SQL and how mainstream RDBMS do it.
With a 100+ columns, you mostly likely have a design problem... also, there are mitigating methods in client tools (eg generation UPDATE statements) or by using ORMs
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How to download source in ZIP format from GitHub?
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To clone that repository via a URL like that: yes, you do need a client, and that client is Git. That will let you make changes, your own branches, merge back in sync with other developers, maintain your own source that you can easily keep up to date without downloading the whole thing each time a...
What exactly is a C pointer if not a memory address?
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The C standard does not define what a pointer is internally and how it works internally. This is intentional so as not to limit the number of platforms, where C can be implemented as a compiled or interpreted language.
A pointer val...