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Persistence unit as RESOURCE_LOCAL or JTA?
...you want a transaction that spans multiple persistence units (or other databases), then RESOURCE_LOCAL may not be good enough.
JTA is also used for managing transactions across systems like JMS and JCA, but that's fairly exotic usage for most of us.
To use JTA, you need support for it in your appl...
Creating Threads in python
...he run() method? If you overrided __init__, did you make sure to call the base threading.Thread.__init__()?
After starting the two threads, does the main thread continue to do work indefinitely/block/join on the child threads so that main thread execution does not end before the child threads comp...
Merge a Branch into Trunk
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Django using get_user_model vs settings.AUTH_USER_MODEL
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jQuery deferreds and promises - .then() vs .done()
...s a NEW Promise, and you are in charge of controlling what that Promise is based on what the function you passed it returned.
Translated from jQuery into native ES2015 Promises, .done() is sort of like implementing a "tap" structure around a function in a Promise chain, in that it will, if the chai...
Mockito match any class argument
...class)))).thenReturn(b);
Where ClassOrSubclassMatcher is an org.hamcrest.BaseMatcher defined as:
public class ClassOrSubclassMatcher<T> extends BaseMatcher<Class<T>> {
private final Class<T> targetClass;
public ClassOrSubclassMatcher(Class<T> targetClass) {...
Difference Between ViewData and TempData?
...efore that you need to check if it is not null
Its a property on ControllerBase, which is the parent of Controller class
TempData:
TempData internally use TempDataDictionary: public TempDataDictionary TempData { get; set; }
Once data is saved into TempDataDictionary object:
It persists in it ...
Why does scanf() need “%lf” for doubles, when printf() is okay with just “%f”?
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error: Unable to find vcvarsall.bat
...vironment variable before calling setup.py.
Execute the following command based on the version of Visual Studio installed:
Visual Studio 2010 (VS10): SET VS90COMNTOOLS=%VS100COMNTOOLS%
Visual Studio 2012 (VS11): SET VS90COMNTOOLS=%VS110COMNTOOLS%
Visual Studio 2013 (VS12): SET VS90COMNTOOLS=%VS12...
CSS does the width include the padding?
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