Storing Java classes in a Derby DB

[Daniel Jue <te...@gmail.com>]

Hi, would it be possible to store compiled Java classes as BLOBs in a
Derby DB, in a way where a web service or application can pull the
classes out as if from a jar?
I know this isn't the proper place to ask about implementation of
this, but are there any obvious restrictions in Derby that would make
this infeasible?

Thanks!

Re: Can derby split log files

["Dag H. Wanvik" <Da...@Sun.COM>]

Pertti Ylijukuri <pe...@gmail.com> writes:

> Can derby split log files to several files after previous log file is too
> large like derby.log derby.log.1 derby.log.2

You can roll your output stream which does that or something else, cf
the Derby properties derby.stream.error.method or
derby.stream.error.field.

http://db.apache.org/derby/docs/dev/tuning/rtunproper33027.html
http://db.apache.org/derby/docs/dev/tuning/rtunproper35028.html

Dag

Can derby split log files

[Pertti Ylijukuri <pe...@gmail.com>]

Can derby split log files to several files after previous log file is too
large like derby.log derby.log.1 derby.log.2
or is it possible to use log4j in derby? 

-----Original Message-----
From: Daniel John Debrunner [mailto:djd@apache.org] 
Sent: 24. lokakuuta 2007 20:02
To: Derby Discussion
Subject: Re: Storing Java classes in a Derby DB

Francois Orsini wrote:
> "Loading classes from a database"
>
http://db.apache.org/derby/docs/dev/devguide/devguide-single.html#cdevdeploy
30736 
> 
> 
> On 10/24/07, *Daniel Jue* <teamphy6@gmail.com 
> <ma...@gmail.com>> wrote:
> 
>      > But Derby already support class loading from a database, can't
>     you use that

Classes loaded by Derby can only be used within the context of a SQL 
statement, e.g. a procedure or function.

Dan.

Re: Storing Java classes in a Derby DB

[Daniel John Debrunner <dj...@apache.org>]

Francois Orsini wrote:
> "Loading classes from a database"
> http://db.apache.org/derby/docs/dev/devguide/devguide-single.html#cdevdeploy30736 
> 
> 
> On 10/24/07, *Daniel Jue* <teamphy6@gmail.com 
> <ma...@gmail.com>> wrote:
> 
>      > But Derby already support class loading from a database, can't
>     you use that

Classes loaded by Derby can only be used within the context of a SQL 
statement, e.g. a procedure or function.

Dan.

Re: Storing Java classes in a Derby DB

[Francois Orsini <fr...@gmail.com>]

"Loading classes from a database"
http://db.apache.org/derby/docs/dev/devguide/devguide-single.html#cdevdeploy30736

On 10/24/07, Daniel Jue <te...@gmail.com> wrote:
>
> > But Derby already support class loading from a database, can't you use
> that
> > ?
> Thanks Mikael!  I didn't know that part!
>

Re: Storing Java classes in a Derby DB

[Daniel Jue <te...@gmail.com>]

> But Derby already support class loading from a database, can't you use that
> ?
Thanks Mikael!  I didn't know that part!

Re: Storing Java classes in a Derby DB

[Mikael <mi...@telia.com>]

Derby does not care what you store in it, as long as you have a class loader
that can get the classes out of Derby it will work just fine.

But Derby already support class loading from a database, can't you use that 
?

Mikael

----- Original Message ----- 
From: "Daniel Jue" <te...@gmail.com>
To: "Derby Discussion" <de...@db.apache.org>
Sent: Tuesday, October 23, 2007 10:28 PM
Subject: Storing Java classes in a Derby DB


> Hi, would it be possible to store compiled Java classes as BLOBs in a
> Derby DB, in a way where a web service or application can pull the
> classes out as if from a jar?
> I know this isn't the proper place to ask about implementation of
> this, but are there any obvious restrictions in Derby that would make
> this infeasible?
>
> Thanks!