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What are detached, persistent and transient objects in hibernate?
...r removal from the
database.
session.remove(city);
Note:
Hibernate API offers couples of methods to switch between entity states, and I think it's worth exploring a Hibernate Session class.
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Difference between JVM and HotSpot?
...implementation of HotSpot (and many other pieces of the JDK e.g compiler, APIs, tools, etc) is developed.
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What is the difference between require_relative and require in Ruby?
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From Ruby API:
require_relative complements the
builtin method require by allowing you
to load a file that is relative to the
file containing the require_relative
statement.
When you use require to load a file,
you a...
How to determine device screen size category (small, normal, large, xlarge) using code?
... return "large";
case 4: // Configuration.SCREENLAYOUT_SIZE_XLARGE is API >= 9
return "xlarge";
default:
return "undefined";
}
}
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How many parameters are too many? [closed]
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This is C and winapi. I can't think of a worse example.
– L̲̳o̲̳̳n̲̳̳g̲̳̳p̲̳o̲̳̳k̲̳̳e̲̳̳
Oct 13 '11 at 19:32
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Rename specific column(s) in pandas
....)
This addition has been made to improve consistency with the rest of the API. The new axis argument is analogous to the columns parameter—they do the same thing.
df.rename(columns={'gdp': 'log(gdp)'})
y log(gdp) cap
0 x x x
1 x x x
2 x x x
3 x x x
4 x...
PHP: exceptions vs errors?
...l exceptions are "the OOP way", but unfortunately some of PHP's native OOP APIs use errors instead of exceptions :-(
– DaveRandom
Sep 19 '13 at 11:45
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MySQL vs MongoDB 1000 reads
...ference in any situation, but this isn't specific to any type of language, api, or extension. generating the random numbers before starting the timer will make a difference, but the majority of the time within the process is no doubt from the database transactions. random number generation is trivia...
Targeting position:sticky elements that are currently in a 'stuck' state
... thread which makes it a performance killer. Use the Intersection Observer API instead.
– Sceptical Jule
Jan 20 at 15:36
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Cross field validation with Hibernate Validator (JSR 303)
...bject being validated. This could be replaced with the standard reflection APIs or if it is a specific class you are validating, the accessor methods themselves.
The @Matches annotation can then be used used on a bean as follows:
@Matches(field="pass", verifyField="passRepeat")
public class Accoun...