How can to get connection at runtime?

I use Jdev 11.1.1.4 adf JSF.
I have 2 connection into Model.jpx.
First I use in production and second I use in test.
I would like to change the value of the variable name nowDate, in "Bean Variables" in Query into "View Object".
Specifically, I'd like to change the value of nowDate either adf.currentDate, when I have choose first connection or *12/01/2010* when I have choose second connection.
It's possible?
I don't know how retrive the database connection used to create business components from existing database object by code and i don't know how to write the code in "Expression Editor" into "Bind Variable" of "View Object".
Thank's a lot for any help.

hi user2964099
... because I have not records with current Date into my local Database ...Maybe it is worth considering to get your data into the shape you need it (using SQL scripts), instead of making your application more complicated (possibly introducing bugs) just for this.
... and I do not know how to write the code in "Expression Editor" into "Bind Variable" of "View Object" for this ...In forum thread "ADF BC : how to use bind variable (default) values in UI "
at ADF BC : how to use bind variable (default) values in UI
I refer to the example application BindVarDefaultsInUIApp-v0.01.zip and I write about it ...
Jan Vervecken wrote:
note : In the example application the Bind Variables have as default value a Groovy expression like "adf.object.viewObject.fromHireDateBVarDefault".... maybe that can help.
success
Jan Vervecken

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