Hi!

I have a class called Computer, and this has a public attribute, an array of FileSystems:
class Computer {
    FileSystem[] FileSystems ;
    ...
    ...
    ...
}

class FIleSystem {
    long capacity;
    ...
    ...
    ...
}

I would like to create rules on the FileSystem class capacity attribute (for example: capacity > 200000).
How can I do this with adding just the Computer class to working memory?(without adding each FileSystem)

Thanks
Janos Ribli