Hello,

In my application I use pretty complex model (there are many sets, many fields etc in each class), let's say there is a big class Project:

class Project {
//fields with setters and getters

}

Unfortunately, i need to use my own JTree(its' desktop application, using Swing and Hibernate) model dedicated to my Project class, and it forces me to do so :

class Project implements Serializable {
//fields with setters and getters

}

(without clause implements it doesn't work properly when I want to Drag&Drop nodes in this JTree)

It's obvious that I also needed to add implements Serializable to all of the classes which HAS Project(like ProjectState and many more).
And here's my question:
Can it seriously affect the performance of my application?
Or even: Does adding clause implements Serializable changes anything?

Please help,

j.k