Re: 5 important questions

Hi,

I'll elaborate (using the word "data" to represent the saved object graph):

1. Imagine two web servers, Tomcat and Apache HTTP.
Tomcat has a web application using Prevayler, Apache HTTP has a web
application in PHP.
How do I access the live Tomcat "data" from the second web server (in PHP)?
Manually created web services?

2. What administration/visualisation tools (i.e. Navicat) are available from
browsing/modifying the object graph "data"? Example: Browsing a user's
payment object and manually changing the reference number.

3, How do you know when more RAM is needed? Does everyone need to set up
their own monitoring?

4. Are there any benchmarks on how well Prevayler performs with queries such
as "all managers earning over $50,000 with a surname starting with 'K'"? I'm
especially interested in the performance of wildcards (SQL LIKE operator).
The benchmark would need to be suitably complex with a few thousand records.

5.Example: There is a web application using Prevayler in production. A new
field, "referrer", needs to be added to the User POJO.
Do I just add the new field to the POJO and restart the web application?
Will it automatically convert all the previously saved User objects (no
referrer field) to the new User object? If not, please describe what steps
would need to be done.


Hope that clears some things up.

Regards,
Daniel.


On Sat, Jul 4, 2009 at 3:09 PM, Diego Miranda <[email protected]>wrote:

> Hi Daniel,
>
>
> 2. What visualisation tools (i.e. navicat) are available for
>> browsing/modifying Prevayler data?
>
>
> What do you mean with Prevayler data? With Prevayler your data is your
> object graph.
>
>
>> 4. How well does Prevayler perform with queries such as "all managers
>> earning over $50,000 with a surname starting with 'K'"? I'm especially
>> interested in the performance of wildcards (SQL LIKE operator).
>
>
> To perform queries you can use JXPath (http://commons.apache.org/jxpath/)
> or take a look at NoDB (http://nodb.googlecode.com/)
>
>
> I think i don't understand points 1 and 5.
>
> Best Regards
> Diego
> --
> Ley de Hofstadter: Siempre toma más tiempo del que se preveía, aun cuando
> se tenga en cuenta la Ley de Hofstadter.
>
>
> ------------------------------------------------------------------------------
>
> _______________________________________________
> To unsubscribe go to the end of this page:
> http://lists.sourceforge.net/lists/listinfo/prevayler-discussion
> _______________________________________________
> "Databases in Memoriam" -- http://www.prevayler.org
>
>

------------------------------------------------------------------------------

_______________________________________________
To unsubscribe go to the end of this page: http://lists.sourceforge.net/lists/listinfo/prevayler-discussion
_______________________________________________
"Databases in Memoriam" -- http://www.prevayler.org