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What's the difference between @JoinColumn and mappedBy when using a JPA @OneToMany association
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@Entity
public class Troop {
@OneToMany(mappedBy="troop")
public Set<Soldier> getSoldiers() {
...
}
@Entity
public class Soldier {
@ManyToOne
@JoinColumn(name="troop_fk")
public Troop getTroop() {
...
}
Troop has a bidirectional one to many relationship with S...
Maven: best way of linking custom external JAR to my project?
It's my first couple of days learning Maven and I'm still struggling with the basics. I have an external .jar file (not available in the public repos) that I need to reference in my project and I'm trying to figure out what my best option is.
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How do I generate a stream from a string?
I need to write a unit test for a method that takes a stream which comes from a text file. I would like to do do something like this:
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Convert php array to Javascript
How can I convert a PHP array in a format like this
17 Answers
17
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Custom CSS Scrollbar for Firefox
...-color which give some control over how scrollbars are displayed.
You can set scrollbar-color to one of the following values (descriptions from MDN):
auto Default platform rendering for the track portion of the scrollbar, in the absence of any other related scrollbar color properties.
dark Show a...
postgresql list and order tables by size
How can I list all the tables of a PostgreSQL database and order them by size ?
7 Answers
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JavaScript equivalent to printf/String.Format
I'm looking for a good JavaScript equivalent of the C/PHP printf() or for C#/Java programmers, String.Format() ( IFormatProvider for .NET).
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What's the effect of adding 'return false' to a click event listener?
Many times I've seen links like these in HTML pages:
15 Answers
15
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mongoose vs mongodb (nodejs modules/extensions), which better? and why?
...M like Doctrine to have similar stuff to mongoose on mongoDB. Objects with setter/getters/save method and so on. That's fine, but by adding more abstraction you are adding more files, more logic, more documentation, more dependencies. I like to keep stuff simple and have less dependencies in my stac...
Getting the first character of a string with $str[0]
I want to get the first letter of a string and I've noticed that $str[0] works great. I am just not sure whether this is 'good practice', as that notation is generally used with arrays. This feature doesn't seem to be very well documented so I'm turning to you guys to tell me if it's all right –...