Re: Getting size of a class

["Christopher Fowler" <cfowler@outpostsentinel.com>]

Is the size of the .class file a good example.  It does not tell me 
much if a variable it not populated but it does tell me the size of an 
empty class.

Chris

> One technique that I've seen, since there is no direct method is to 
> serialize
> the object and then check the size of the resultant array, String 
etc. 
>  I've heard
> this is not inexpensive.
> 
> If you do this only for development metrics you might not care about 
> expense.
> A simple way since these will be your classes, is to implement 
> Externalizable and
> then to put you more efficient writeExternal() method that will just 
> count the bytes
> vs really go through the effort of writting to the outputStream.
> 
> Good luck,  curt
> 
> Christopher Fowler wrote:
> 
> >I'm starting a big java project and I want to be very memory usage 
> >aware.  I found a way to get the size of the heap.  Is there a way I 
> >can get the size of a class?  Normally in C I can use sizeof() on 
> >structures.  Is there something similar?
> >
> >Thanks,
> >Chris
> >
> >  
> >
> 
> -- 
> 
> Curt Smith
> chsmith@speakeasy.net
> (h) 404-294-6686
> (w) 404-463-0973
> 
> 
> 
> 
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