I implemented a DataSourceFactory to obtain this same functionality.
specifically around having a single executable JAR and derby not
finding its schema creation file. The DSF lets the system auto-detect
schema existence and use embedded ant to create it as required.

Your mileage may vary
John-

On Tue, Oct 20, 2009 at 5:10 PM, Mike Kienenberger <mkien...@gmail.com> wrote:
> Do you want the database to be a single-user resource which is
> persisted between runs?
>
> If so, it should be as simple as using jdbc:h2:~/test/testdatabase as
> your jdbc url where "~/test/cistestdatabase" is the path to your
> database (it will be a directory).  Most likely, this is what you
> want.
>
> Using jdbc:h2:tcp://localhost/~/test/testdatabase will connect as a
> standard standalone database instance and assumes you started it
> standalone.   This is now multiuser.
>
> The list for technical questions is a google group.
>
> http://groups.google.com/group/h2-database
>
>
> On Tue, Oct 20, 2009 at 8:00 PM, Eric Lazarus <ericllaza...@yahoo.com> wrote:
>> Folks
>>
>> Thanks for you folks direction on using H2 as our database but we are a bit 
>> stuck on how to do it. We are moving toward using Cayenne 3.0M6 and H2 for 
>> the desktop version of an application that should be as idiot proof as 
>> possible. We want for the end user to not have to understand that there is a 
>> database there at all.
>>
>> Any suggestions about how we should configure things? For example, should we 
>> configure H2 to run embedded if we don't want the end user to have to be 
>> aware of it? How DO we configure it that way? What should we be reading to 
>> figure out how to do that? I am not even sure we understand what it means to 
>> run "embeded." Does that mean that that database is in the same VM? That we 
>> don't go via JDBC at all?
>>
>> Also, we are trying to load a postgres dump into H2 and am failing because 
>> H2 does not support the COPY statement. I have tried enabling postgres 
>> compatibility mode by appending ';MODE=PostgreSQL' to my database url. This 
>> results in a error message stating 'File not found 'backup.sql'. I tried 
>> putting my dump in a file by that name and got the same message.
>>
>> I also tried sticking 'SET MODE PostgreSQL ;' at the top of my SQL dump 
>> file. This had no effect the script still abended with a syntax error on the 
>> COPY command.
>>
>> Where the best place to ask H2 questions? Is there an IRC room? A list serve?
>>
>> thanks!
>>
>> Eric
>>
>> +1 (917) 589-6579
>>
>>
>>
>

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