Hello, > -----Original Message----- > From: Andrei Ivanov [mailto:[EMAIL PROTECTED]
> I see here > http://java.sun.com/j2se/1.4.2/docs/api/java/util/Vector.html > that Vector implements the List interface, and I used Vector because it's that means that you can assign a Vector to a field of type List, but not vice versa. > in the ojb documentation: > "The association is implemented by the Vector attribute allArticlesInGroup > on the ProductGroup class." > http://db.apache.org/ojb/tutorial3.html#Using%20a%20Single%20Proxy%20for%20a %20Whole%20Collection In that example, no proxies are used for that collection. If I had written these classes, I would have used interface types in the declarations and ArrayList for the instantiation. There is a performance advantage of ArrayList against Vector, because access to elements is synchronized in Vector. To sum up: Vector is evil. Olli -- Oliver Matz ppi Media GmbH Deliusstraße 10 D-24114 Kiel phone +49 (0) 43 1-53 53-422 fax +49 (0) 43 1-53 53-2 22 email mailto:[EMAIL PROTECTED] web www.ppi.de Explore your printnet! DRUPA 2004 Düsseldorf, Germany, 6 - 19 May 2004, Booth 6E62 --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
