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What's the difference between @JoinColumn and mappedBy when using a JPA @OneToMany association
...ect annotations would look like this:
@Entity
public class Company {
@OneToMany(fetch = FetchType.LAZY, mappedBy = "company")
private List<Branch> branches;
}
@Entity
public class Branch {
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "companyId")
private Company ...
How to get sp_executesql result into a variable?
...
Just a tangential Question, What about more than one OUTPUT? what would be the Query look like?
– Srivastav
Apr 13 '15 at 14:43
3
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Is there an advantage to use a Synchronized Method instead of a Synchronized Block?
Can any one tell me the advantage of synchronized method over synchronized block with an example?
23 Answers
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Override compile flags for single files
...ck that this is indeed the case, you can do
make VERBOSE=1
As an aside, one of the maintainers of the GNU C++ Standard Library presents a pretty negative opinion on -Weffc++ in this answer.
Another point is that you're misusing add_definitions in the sense that you're using this for compiler fla...
Tuples( or arrays ) as Dictionary keys in C#
...a Dictionary lookup table in C#. I need to resolve a 3-tuple of values to one string. I tried using arrays as keys, but that did not work, and I don't know what else to do. At this point I am considering making a Dictionary of Dictionaries of Dictionaries, but that would probably not be very pret...
Where in a virtualenv does the custom code go?
What sort of directory structure should one follow when using virtualenv ? For instance, if I were building a WSGI application and created a virtualenv called foobar I would start with a directory structure like:
...
How to count number of files in each directory?
...("$dir"/*)
printf "%5d files in directory %s\n" "${#files[@]}" "$dir"
done
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Cosmic Rays: what is the probability they will affect a program?
...dies by IBM in the 1990s suggest that computers typically experience about one cosmic-ray-induced error per 256 megabytes of RAM per month.[15]
This means a probability of 3.7 × 10-9 per byte per month, or 1.4 × 10-15 per byte per second. If your program runs for 1 minute and occupies 20 MB of R...
Is passing 'this' in a method call accepted practice in java
...ive answer to such a question is always easier to argument), I just opened one of the most common java.lang classes, the String one, and of course I found instances of this use, for example
1084 // Argument is a String
1085 if (cs.equals(this))
1086 return true;
Look for ...
Configuring IntelliJ IDEA for unit testing with JUnit
... on mac, the mapping gives me thumbnails. pretty sure that's not the right one.
– dtc
Jun 7 '19 at 19:47
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