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From "Ferrer, Eric" <eric.fer...@transcore.com>
Subject RE: Driver Specific Parameters
Date Wed, 21 Feb 2007 21:58:58 GMT
Armin,

Thanks for the info.  Do you know what the jdbc. Argument is to allow
the setting of transaction isolation levels are for MSSQLServer Driver
or any other drivers?

Also, when I open up these XML files in ALTOVE XMLSpy it complains
because there is no parent element wrapping the repository_database.xml
contents ever thought of adding one?

Last question(s)
a) Ever add support for Native SQL Calls?
b) Ever add support for DBCP initialSize of pooled connections?

Thanks
-Eric

-----Original Message-----
From: Armin Waibel [mailto:arminw@apache.org] 
Sent: Tuesday, February 13, 2007 8:01 AM
To: OJB Users List
Subject: Re: Driver Specific Parameters

Luis Colorado wrote:
> Armin,
> 
> Well, it's interesting you mention that, because I tried to use
> custom attributes, but it didn't work. Now I'm becoming aware that
> you are suggesting adding the "jdbc." prefix to the attribute name.
> My original, and failed, attempt looked something like:
> 
> <attribute attribute-name="zeroDateTimeBehavior" 
> attribute-value="convertToNull"/>
> 
> So I guess I will try later your suggestion:
> 
> <attribute attribute-name="jdbc.zeroDateTimeBehavior" 
> attribute-value="convertToNull"/>
> 
> Perhaps I missed it, but I never saw the "jdbc." prefix in the
> documentation... did you?

Please see the link in my previous post (repository guide). You can find

a note in the 1.0.4 release notes too (New features: OJB-14):
http://db.apache.org/ojb/release-notes.txt
And it's commented in the repository-database.xml example file:
http://db.apache.org/ojb/repository_database.xml.txt

regards,
Armin

> 
> Thanks!
> 
> Luis
> 
> -----Original Message----- From: Armin Waibel
> [mailto:arminw@apache.org] Sent: Mon 2/12/2007 10:07 PM To: OJB Users
> List Subject: Re: Driver Specific Parameters
> 
>> In the end, I discovered that the right place to put it at the end
>> of the dbalias as shown below:
>> 
>> 
>> <jdbc-connection-descriptor jcd-alias="essential" 
>> default-connection="yes" platform="MySQL" jdbc-level="3.0" 
>> driver="org.gjt.mm.mysql.Driver" protocol="jdbc" 
>> subprotocol="mysql" 
>> dbalias="//localhost/essential?zeroDateTimeBehavior=convertToNull"
>>  username="xxxxxx" password="yyyyy" >
>> 
> 
> since OJB 1.0.4: Another option is to use "custom attributes" to
> specify jdbc-driver parameter (if supported by the jdbc-driver): 
>
http://db.apache.org/ojb/docu/guides/repository.html#Custom+attributes-N
10329
> 
> 
> the example above would look like (don't know if mysql support this
> too)
> 
> <attribute attribute-name="jdbc.zeroDateTimeBehavior" 
> attribute-value="convertToNull"/>
> 
> regards, Armin
> 
>> I hope this helps.
>> 
>> Luis
>> 
>> -----Original Message----- From: 	Ferrer, Eric
>> [mailto:eric.ferrer@transcore.com] Sent:	Monday, February 12,
2007
>> 4:02 PM To:	OJB Users List Subject:	Driver Specific Parameters
>> 
>> Since we are using OJB and DBCP for connection pooling, with the 
>> introduction of JDBC 4.0 a lot of drivers have additional
>> parameters that we can set for performance tuning.  What are the
>> options for setting this in OJB's repository_database.xml or other
>> properties file?
>> 
>> 
>> 
>> Thanks
>> 
>> 
>> 
>> -Eric
>> 
>> 
>> 
>> 
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>> 
> 
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> 
> 

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