I had a great group of students to help give this new class its inaugural flight. While a little on the quiet side, they had wonderful questions and some great insight at the conclusion of our class for how to improve it. I thought I would share two questions that came out this week’s class.
Question #1 (thanks Sharon) - What happens when you use
And the class looked like this…
public class Player
{
private List teams;
public void setTeams(List teams) {
this.teams = teams;
}
}
The implementation class of the collection bean property does not have to match or
Question #2 (thanks Kurt) - Another great question came when we looked at the @Autowire annotation that was added in Spring 2.5. This annotation can be used on any method in the class to conduct dependency injection. The question was what if the @Autowire is used on multiple methods to dependency inject the same property? For example…
public class Player {
private String name;
private Team team;
@Autowired
public void initializePlayer(Team team){
this.team =
team;
}
@Autowired
public void initializePlayerAgain(Team team){
this.team = team;
}
}
In fact, both methods will get called and a Team will get passed to both methods. While this works, we could not think of a good reason for its use.If you have interest in exploring Spring, please contact our office (651-994-8558) and ask for Dan McCabe. I think our Spring training is the most complete (pun absolutely intended!).
