[elephant-devel] Querying Advice

[Daniel Salama]

Robert,

Thanks for the clarification. I think I got it and agree.

BTW, after running your code using persistent objects and adding 5000  
users, the total on-disk storage is now 5MB (as compared to 9MB by  
using non-persistent objects), which concurs with what Ian mentioned  
yesterday. Anyway, just wanted to point this out for the rest of us.

Thanks again,
Daniel

On Nov 14, 2006, at 3:20 PM, Robert L. Read wrote:

> You must either do something like add-to-root, or inherit from  
> persistent-class.  In that,
> you are correct.  Once an object is persisted by either mechanism,  
> it won't be "garbage collected"
> from the store; you can kill you lisp image and recreated it and  
> then retrieve the object.
> Garbage collection within memory is a separate issue, and less  
> important---you can always
> get back to the object.
>
> I feel that I just muddied things by using "add-to-root" here ---  
> creating a persistent
> class is almost always better for a serious application.

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