[SqueakDBX] Re: Connection Pool for Glorp
Mariano Martinez Peck
marianopeck at gmail.com
Tue Mar 30 10:45:55 UTC 2010
Here they are the changes we talked yesterday:
GlorpDriverSqueakDBX-MarianoMartinezPeck.8
Glorp-MarianoMartinezPeck.53
Cheers
Mariano
On Mon, Mar 29, 2010 at 4:21 PM, Mariano Martinez Peck <
marianopeck at gmail.com> wrote:
> I am at #pharo-project
>
> I am not sure which would be the better solution , thus. But we can
> discuss.
>
> cheers
>
> mariano
>
>
> On Mon, Mar 29, 2010 at 1:59 PM, John Toohey <jt at parspro.com> wrote:
>
>> Hey,
>> Missed you yesterday, so let me know when you'll be around again. The
>> remaining issue with the connection pool, is that I am pooling only
>> DBXConnection objects, but perhaps I should be pooling DatabaseDriver
>> objects. I'd prefer not to use the driver at all, but I know thats part of
>> the DBX re-factoring that you did. Its really just that issue that I want to
>> discuss.
>>
>>
>> On Sun, Mar 28, 2010 at 17:33, Mariano Martinez Peck <
>> marianopeck at gmail.com> wrote:
>>
>>> I am in #pharo-project under MarianoPeck...but for no more than one hour
>>> :)
>>>
>>> http://webchat.freenode.net/?channels=pharo-project
>>>
>>> Cheers
>>>
>>> Mariano
>>>
>>>
>>> On Sun, Mar 28, 2010 at 1:55 PM, John Toohey <jt at parspro.com> wrote:
>>>
>>>> Hey,
>>>> Just wondering if you are around for a quick chat on IRC/Skype/Jabber.
>>>> Dealing with some funny stuff here with the handing of the DBXConnection is
>>>> the driver.
>>>>
>>>>
>>>> On Sat, Mar 27, 2010 at 13:26, John Toohey <jt at parspro.com> wrote:
>>>>
>>>>> Great, I just want to make sure the ConnectionPool cleans up properly,
>>>>> before returning the connection. Making good progress with the pool, at
>>>>> least for reading. Lose the connection, when I do an insert or update
>>>>> though, so need to track if that is happening in the Driver or my code.
>>>>>
>>>>>
>>>>> On Sat, Mar 27, 2010 at 12:20, Mariano Martinez Peck <
>>>>> marianopeck at gmail.com> wrote:
>>>>>
>>>>>>
>>>>>>
>>>>>> On Sat, Mar 27, 2010 at 1:04 PM, John Toohey <johnptoohey at gmail.com>wrote:
>>>>>>
>>>>>>> Is there a way to see if the DBXConnection is in the middle of a
>>>>>>> transaction? If I am releasing a connection, I'd like to rollback if a
>>>>>>> transaction is open.
>>>>>>>
>>>>>>>
>>>>>> I answer you in SqueakDBX so that not to make noise in Glorp.
>>>>>>
>>>>>> No, there is no way right now, but it can be easily added (I think).
>>>>>> You can add a boolean variable hasTransactionOpened to DBXConnection,
>>>>>> initializated in false.
>>>>>> Then, then calling DBXConnection >> startTransaction you set that
>>>>>> to true.
>>>>>> Then, in messages commit, rollback you put that to false.
>>>>>> Then in messsages finalize, close, and maybe some other place, you ask
>>>>>> for the value, if it is true, then you rallback and put variable to false
>>>>>>
>>>>>> Of course we would need to write tests for that.
>>>>>>
>>>>>> I can give it a try this weekend.
>>>>>>
>>>>>> What do you think ?
>>>>>>
>>>>>> Cheers
>>>>>>
>>>>>> Mariano
>>>>>>
>>>>>>
>>>>>>>
>>>>>>> On Sat, Mar 27, 2010 at 10:02, Mariano Martinez Peck <
>>>>>>> marianopeck at gmail.com> wrote:
>>>>>>>
>>>>>>>> Wait....let's calm down....too much misunderstands here.
>>>>>>>>
>>>>>>>> Glorp is maintained and developed in VW. There is a port to squeak
>>>>>>>> from 2 years old or more. Then, we took that version and did several
>>>>>>>> refactors to Glorp so that it uses an abstract DatabaseDriver. This only
>>>>>>>> affects SqueakDatabaseAccessor. We called that GlorpDBX.
>>>>>>>>
>>>>>>>> Diogenes: don't worry. John is aware of GlorpDBX, what it is, how to
>>>>>>>> install, etc. Check SqueakDBX mailing list. He even posted in OpenDBX
>>>>>>>> mailing list ;)
>>>>>>>>
>>>>>>>> Now....regarding the Connection Pool, you have different things:
>>>>>>>>
>>>>>>>> - The package Alan told you about Seaside package. He was talking
>>>>>>>> about the one that is in VW public store. To look at it, you should take a
>>>>>>>> VW, go to store and look at it. And if you like it, I don't know how, export
>>>>>>>> it and load in pharo.
>>>>>>>> - There is a Seaside package in squeaksource, which is not the same,
>>>>>>>> I think it has some kind of connection pool but I am not sure. Maybe Keithy
>>>>>>>> did it.
>>>>>>>> - There is a connection pool that Ramón León did some time ago.
>>>>>>>> Check
>>>>>>>> http://onsmalltalk.com/making-a-connection-pool-for-glorp-in-seaside
>>>>>>>> - There is a connetion pool Esteban Lorenzano did directly for
>>>>>>>> GlorpDBX
>>>>>>>>
>>>>>>>> Finally, if you plan to do a connection pool for GlorpDBX you have
>>>>>>>> to possibilities:
>>>>>>>> - be hardcoded to the SqueakDBX driver and use directly
>>>>>>>> DBXConnection objects
>>>>>>>> - not be hardcoded to SqueakDBX driver but use DatabaseDriver or
>>>>>>>> DatabaseDriver >> connection instead. I am not sure if this is possible. But
>>>>>>>> having a connection pool for Glorp, not hardcoding with the connection class
>>>>>>>> would be cool.
>>>>>>>>
>>>>>>>> Cheers
>>>>>>>>
>>>>>>>> Mariano
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On Fri, Mar 26, 2010 at 5:53 PM, John Toohey <johnptoohey at gmail.com
>>>>>>>> > wrote:
>>>>>>>>
>>>>>>>>> Hang on, this is exactly what I load :-
>>>>>>>>>
>>>>>>>>> Gofer new
>>>>>>>>> squeaksource: 'MetacelloRepository';
>>>>>>>>> package: 'ConfigurationOfGlorpDBX';
>>>>>>>>> load.
>>>>>>>>> ((Smalltalk at: #ConfigurationOfGlorpDBX) project version: '1.0')
>>>>>>>>> load.
>>>>>>>>>
>>>>>>>>> I need to get used to calling it GlorpDBX :-)
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Fri, Mar 26, 2010 at 16:37, Diogenes Moreira <
>>>>>>>>> diogenes.moreira at gmail.com> wrote:
>>>>>>>>>
>>>>>>>>>> Oki, please get the Glorp Package from Squeak DBX Project.. this
>>>>>>>>>> package have change to adapt DBAccessor to SqueakDBX classes, an remove
>>>>>>>>>> hiddens "IF" in the Squeak Glorp Version..
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Best Regards..
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> On Fri, Mar 26, 2010 at 5:34 PM, John Toohey <
>>>>>>>>>> johnptoohey at gmail.com> wrote:
>>>>>>>>>>
>>>>>>>>>>> I'm using SqueakDBX on Pharo RC3.
>>>>>>>>>>>
>>>>>>>>>>> On Fri, Mar 26, 2010 at 16:32, Diogenes Moreira <
>>>>>>>>>>> diogenes.moreira at gmail.com> wrote:
>>>>>>>>>>>
>>>>>>>>>>>> from glorp or squeakdbx project....??
>>>>>>>>>>>>
>>>>>>>>>>>> take Care.
>>>>>>>>>>>> The SqueakDBX version has a couple of refactorings and
>>>>>>>>>>>> modifications to adapt to different platforms.
>>>>>>>>>>>>
>>>>>>>>>>>> the detail is on the web squeakdbx www.squeakdbx.org
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> an other question..? do you using pharo or squeak ???
>>>>>>>>>>>>
>>>>>>>>>>>> Best Regards..
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> On Fri, Mar 26, 2010 at 5:26 PM, John Toohey <
>>>>>>>>>>>> johnptoohey at gmail.com> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>> I took the one from squeaksource, latest update was Feb 22
>>>>>>>>>>>>> 2010. Where do I find the one you are looking at?
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> On Fri, Mar 26, 2010 at 16:20, Alan Knight <knight at acm.org>wrote:
>>>>>>>>>>>>>
>>>>>>>>>>>>>> I think you're looking at a different package than I am.
>>>>>>>>>>>>>> Quite possibly it's the original work that Ramon did. I have no
>>>>>>>>>>>>>> GSDescriptorSystem or GSPooledDatabaseAccessor. I suspect that might also be
>>>>>>>>>>>>>> for an old version of Seaside.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> At 04:11 PM 2010-03-26, John Toohey wrote:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> I mean should my own Database class which is a sub-class of
>>>>>>>>>>>>>> DescriptorSystem be changed to sub-class GSDescriptorSystem and then use
>>>>>>>>>>>>>> GSPooledDatabaseAccessor instead of SqueakDatabaseAccessor?
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> I don't see any specific VW code in here, so far anyhow.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> I'll write this up and post it here, when I get it working.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> On Fri, Mar 26, 2010 at 16:03, Alan Knight <knight at acm.org>
>>>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> I'm not sure what you mean by inheriting from these. Right
>>>>>>>>>>>>>> now, this provides a VW-specific pooling accessor. You could make a
>>>>>>>>>>>>>> SqueakDBX one, and it probably would be nice to try and abstract some of
>>>>>>>>>>>>>> that stuff to reduce any code duplication. And documentation is good too.
>>>>>>>>>>>>>> This is based on work that Ramon Leon did, back in 2007, I'm not sure if it
>>>>>>>>>>>>>> was in Squeak or not.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> At 03:29 PM 2010-03-26, John Toohey wrote:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> This looks great. Is the correct procedure to have all my
>>>>>>>>>>>>>> class that inherit from Glorp, inherit from these instead? I'm using
>>>>>>>>>>>>>> GlorpDBX. I had no idea this was available, so we should get it documented
>>>>>>>>>>>>>> on the SqueakDBX site.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> On Fri, Mar 26, 2010 at 14:42, Alan Knight <knight at acm.org>
>>>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Take a look at the SeasideGlorp package.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> At 02:36 PM 2010-03-26, John Toohey wrote:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> I need to write a connection pool for Glorp and am thinking
>>>>>>>>>>>>>> that the Database accessor is the place to do this. Is this correct, or has
>>>>>>>>>>>>>> anyone any experience with this?
>>>>>>>>>>>>>> -- -JT
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> -- You received this message because you are subscribed to
>>>>>>>>>>>>>> the Google Groups "glorp-group" group. To post to this group,
>>>>>>>>>>>>>> send email to glorp-group at googlegroups.com. To unsubscribe
>>>>>>>>>>>>>> from this group, send email to
>>>>>>>>>>>>>> glorp-group+unsubscribe at googlegroups.com<glorp-group%2Bunsubscribe at googlegroups.com>.
>>>>>>>>>>>>>> For more options, visit this group at
>>>>>>>>>>>>>> http://groups.google.com/group/glorp-group?hl=en.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> -- Alan Knight [|], Engineering Manager, Cincom Smalltalk
>>>>>>>>>>>>>> knight at acm.org aknight at cincom.com
>>>>>>>>>>>>>> http://www.cincom.com/smalltalk
>>>>>>>>>>>>>> -- You received this message because you are subscribed to
>>>>>>>>>>>>>> the Google Groups "glorp-group" group. To post to this group,
>>>>>>>>>>>>>> send email to glorp-group at googlegroups.com. To unsubscribe
>>>>>>>>>>>>>> from this group, send email to
>>>>>>>>>>>>>> glorp-group+unsubscribe at googlegroups.com<glorp-group%2Bunsubscribe at googlegroups.com>.
>>>>>>>>>>>>>> For more options, visit this group at
>>>>>>>>>>>>>> http://groups.google.com/group/glorp-group?hl=en.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> --
>>>>>>>>>>>>>> -JT
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> --
>>>>>>>>>>>>>> You received this message because you are subscribed to the
>>>>>>>>>>>>>> Google Groups "glorp-group" group.
>>>>>>>>>>>>>> To post to this group, send email to
>>>>>>>>>>>>>> glorp-group at googlegroups.com.
>>>>>>>>>>>>>> To unsubscribe from this group, send email to
>>>>>>>>>>>>>> glorp-group+unsubscribe at googlegroups.com<glorp-group%2Bunsubscribe at googlegroups.com>
>>>>>>>>>>>>>> .
>>>>>>>>>>>>>> For more options, visit this group at
>>>>>>>>>>>>>> http://groups.google.com/group/glorp-group?hl=en.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> --
>>>>>>>>>>>>>> Alan Knight [|], Engineering Manager, Cincom Smalltalk
>>>>>>>>>>>>>> knight at acm.org
>>>>>>>>>>>>>> aknight at cincom.com
>>>>>>>>>>>>>> http://www.cincom.com/smalltalk
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> --
>>>>>>>>>>>>>> You received this message because you are subscribed to the
>>>>>>>>>>>>>> Google Groups "glorp-group" group.
>>>>>>>>>>>>>> To post to this group, send email to
>>>>>>>>>>>>>> glorp-group at googlegroups.com.
>>>>>>>>>>>>>> To unsubscribe from this group, send email to
>>>>>>>>>>>>>> glorp-group+unsubscribe at googlegroups.com<glorp-group%2Bunsubscribe at googlegroups.com>
>>>>>>>>>>>>>> .
>>>>>>>>>>>>>> For more options, visit this group at
>>>>>>>>>>>>>> http://groups.google.com/group/glorp-group?hl=en.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> --
>>>>>>>>>>>>>> -JT
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> --
>>>>>>>>>>>>>> You received this message because you are subscribed to the
>>>>>>>>>>>>>> Google Groups "glorp-group" group.
>>>>>>>>>>>>>> To post to this group, send email to
>>>>>>>>>>>>>> glorp-group at googlegroups.com.
>>>>>>>>>>>>>> To unsubscribe from this group, send email to
>>>>>>>>>>>>>> glorp-group+unsubscribe at googlegroups.com<glorp-group%2Bunsubscribe at googlegroups.com>
>>>>>>>>>>>>>> .
>>>>>>>>>>>>>> For more options, visit this group at
>>>>>>>>>>>>>> http://groups.google.com/group/glorp-group?hl=en.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> --
>>>>>>>>>>>>>> Alan Knight [|], Engineering Manager, Cincom Smalltalk
>>>>>>>>>>>>>> knight at acm.org
>>>>>>>>>>>>>> aknight at cincom.com
>>>>>>>>>>>>>> http://www.cincom.com/smalltalk
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> --
>>>>>>>>>>>>>> You received this message because you are subscribed to the
>>>>>>>>>>>>>> Google Groups "glorp-group" group.
>>>>>>>>>>>>>> To post to this group, send email to
>>>>>>>>>>>>>> glorp-group at googlegroups.com.
>>>>>>>>>>>>>> To unsubscribe from this group, send email to
>>>>>>>>>>>>>> glorp-group+unsubscribe at googlegroups.com<glorp-group%2Bunsubscribe at googlegroups.com>
>>>>>>>>>>>>>> .
>>>>>>>>>>>>>> For more options, visit this group at
>>>>>>>>>>>>>> http://groups.google.com/group/glorp-group?hl=en.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> --
>>>>>>>>>>>>> -JT
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> --
>>>>>>>>>>>>> You received this message because you are subscribed to the
>>>>>>>>>>>>> Google Groups "glorp-group" group.
>>>>>>>>>>>>> To post to this group, send email to
>>>>>>>>>>>>> glorp-group at googlegroups.com.
>>>>>>>>>>>>> To unsubscribe from this group, send email to
>>>>>>>>>>>>> glorp-group+unsubscribe at googlegroups.com<glorp-group%2Bunsubscribe at googlegroups.com>
>>>>>>>>>>>>> .
>>>>>>>>>>>>> For more options, visit this group at
>>>>>>>>>>>>> http://groups.google.com/group/glorp-group?hl=en.
>>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> --
>>>>>>>>>>>> You received this message because you are subscribed to the
>>>>>>>>>>>> Google Groups "glorp-group" group.
>>>>>>>>>>>> To post to this group, send email to
>>>>>>>>>>>> glorp-group at googlegroups.com.
>>>>>>>>>>>> To unsubscribe from this group, send email to
>>>>>>>>>>>> glorp-group+unsubscribe at googlegroups.com<glorp-group%2Bunsubscribe at googlegroups.com>
>>>>>>>>>>>> .
>>>>>>>>>>>> For more options, visit this group at
>>>>>>>>>>>> http://groups.google.com/group/glorp-group?hl=en.
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> --
>>>>>>>>>>> -JT
>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> --
>>>>>>>>>>> You received this message because you are subscribed to the
>>>>>>>>>>> Google Groups "glorp-group" group.
>>>>>>>>>>> To post to this group, send email to
>>>>>>>>>>> glorp-group at googlegroups.com.
>>>>>>>>>>> To unsubscribe from this group, send email to
>>>>>>>>>>> glorp-group+unsubscribe at googlegroups.com<glorp-group%2Bunsubscribe at googlegroups.com>
>>>>>>>>>>> .
>>>>>>>>>>> For more options, visit this group at
>>>>>>>>>>> http://groups.google.com/group/glorp-group?hl=en.
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> --
>>>>>>>>>> You received this message because you are subscribed to the Google
>>>>>>>>>> Groups "glorp-group" group.
>>>>>>>>>> To post to this group, send email to glorp-group at googlegroups.com
>>>>>>>>>> .
>>>>>>>>>> To unsubscribe from this group, send email to
>>>>>>>>>> glorp-group+unsubscribe at googlegroups.com<glorp-group%2Bunsubscribe at googlegroups.com>
>>>>>>>>>> .
>>>>>>>>>> For more options, visit this group at
>>>>>>>>>> http://groups.google.com/group/glorp-group?hl=en.
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> -JT
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> --
>>>>>>>>> You received this message because you are subscribed to the Google
>>>>>>>>> Groups "glorp-group" group.
>>>>>>>>> To post to this group, send email to glorp-group at googlegroups.com.
>>>>>>>>> To unsubscribe from this group, send email to
>>>>>>>>> glorp-group+unsubscribe at googlegroups.com<glorp-group%2Bunsubscribe at googlegroups.com>
>>>>>>>>> .
>>>>>>>>> For more options, visit this group at
>>>>>>>>> http://groups.google.com/group/glorp-group?hl=en.
>>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> You received this message because you are subscribed to the Google
>>>>>>>> Groups "glorp-group" group.
>>>>>>>> To post to this group, send email to glorp-group at googlegroups.com.
>>>>>>>> To unsubscribe from this group, send email to
>>>>>>>> glorp-group+unsubscribe at googlegroups.com<glorp-group%2Bunsubscribe at googlegroups.com>
>>>>>>>> .
>>>>>>>> For more options, visit this group at
>>>>>>>> http://groups.google.com/group/glorp-group?hl=en.
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> -JT
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> You received this message because you are subscribed to the Google
>>>>>>> Groups "glorp-group" group.
>>>>>>> To post to this group, send email to glorp-group at googlegroups.com.
>>>>>>> To unsubscribe from this group, send email to
>>>>>>> glorp-group+unsubscribe at googlegroups.com<glorp-group%2Bunsubscribe at googlegroups.com>
>>>>>>> .
>>>>>>> For more options, visit this group at
>>>>>>> http://groups.google.com/group/glorp-group?hl=en.
>>>>>>>
>>>>>>
>>>>>>
>>>>>> _______________________________________________
>>>>>> SqueakDBX mailing list
>>>>>> SqueakDBX at lists.squeakfoundation.org
>>>>>> http://lists.squeakfoundation.org/mailman/listinfo/squeakdbx
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> -JT
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> -JT
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> SqueakDBX mailing list
>>>> SqueakDBX at lists.squeakfoundation.org
>>>> http://lists.squeakfoundation.org/mailman/listinfo/squeakdbx
>>>>
>>>>
>>>
>>> _______________________________________________
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>>> SqueakDBX at lists.squeakfoundation.org
>>> http://lists.squeakfoundation.org/mailman/listinfo/squeakdbx
>>>
>>>
>>
>>
>> --
>> -JT
>>
>>
>>
>> _______________________________________________
>> SqueakDBX mailing list
>> SqueakDBX at lists.squeakfoundation.org
>> http://lists.squeakfoundation.org/mailman/listinfo/squeakdbx
>>
>>
>
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