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JPA eager fetch does not join
...ence between eager and lazy. In both cases JPA/Hibernate does not automatically join many-to-one relationships.
8 Answers
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Why are my basic Heroku apps taking two seconds to load?
I created two very simple Heroku apps to test out the service, but it's often taking several seconds to load the page when I first visit them:
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Insert auto increment primary key to existing table
...ering if it's possible to insert data into the primary key column automatically (I already have 500 rows in DB and want to give them id but I don't want to do it manually). Any thoughts? Thanks a lot.
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Mockito: Stubbing Methods That Return Type With Bounded Wild-Cards
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You can also use the non-type safe method doReturn for this purpose,
@Test
public void testMockitoWithGenerics()
{
DummyClass dummyClass = Mockito.mock(DummyClass.class);
List<? extends Number> someList = new Arr...
Why does Dijkstra's algorithm use decrease-key?
Dijkstra's algorithm was taught to me was as follows
3 Answers
3
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Why isn't `int pow(int base, int exponent)` in the standard C++ libraries?
... of power functions (and others). C++11 [c.math] /11 states, after listing all the float/double/long double overloads (my emphasis, and paraphrased):
Moreover, there shall be additional overloads sufficient to ensure that, if any argument corresponding to a double parameter has type double or an...
Difference between matches() and find() in Java Regex
I am trying to understand the difference between matches() and find() .
5 Answers
5...
How do I convert a hexadecimal color to rgba with the Less compiler?
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Actually, the Less language comes with an embedded function called fade. You pass a color object and the absolute opacity % (higher value means less transparent):
fade(@color, 50%); // Return @color with 50% opacity in rgba
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How to redirect output with subprocess in Python?
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UPDATE: os.system is discouraged, albeit still available in Python 3.
Use os.system:
os.system(my_cmd)
If you really want to use subprocess, here's the solution (mostly lifted from the documentation for subprocess):
p ...
what is difference between success and .done() method of $.ajax
Can anyone help me?
I am not able to understand the difference between success and .done() of $.ajax .
4 Answers
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