I did a little digging on this and I'm not sure relying on JavaDB is such a 
sure bet.  Its a verbatim copy of Derby 10.2 and while bundled in with the jvm, 
its not in the classpath by default.  Also, I have 2 Oracle 1.6 JVMs on my PC 
and only 1 includes it.  Also, while the documentation says it is in the "db" 
directory, on my installation its in the "javadb" directory.  It would be 
tricky at best to reliably get this in the tester's classpath, I think.  It 
would be safer I think to just include the jar.

My thoughts were to eventually migrate the example to use derby instead of 
hsqldb.  Maybe I should either change my test to use hsqldb or change the 
example to use derby.  Then as Robert points out, its just a minor build 
modification to use the jar from the example.  In any case, the current Mock 
datasource doesn't emulate a real JDBC driver very well and I found it was 
extremely simple to use Derby in in-memory embedded mode (All you do is issue 
"DriverManager#getConnection" with the correct string).  There are no config 
files, etc.  

I don't know if you want to call this a "unit" test or an "integration" test 
(and what are all those other Solr tests that use Jetty, etc?).  In the end, I 
just want readable tests that are true to real life, which DIH lacks right now.

James Dyer
E-Commerce Systems
Ingram Content Group
(615) 213-4311


-----Original Message-----
From: Uwe Schindler [mailto:[email protected]] 
Sent: Wednesday, May 02, 2012 2:16 PM
To: [email protected]
Subject: RE: Help: SOLR-3430 and Build changes

I have not checked this, but if the JavaDB is in the JDK official JavaDocs and 
is therefore part of JDK6 spec? We have to check this, but *if* the package 
names start with java.db or whatever it *has* to be also in alternate JDK 
impls. At least OpenJDK also downloads derby while building.

-----
Uwe Schindler
H.-H.-Meier-Allee 63, D-28213 Bremen
http://www.thetaphi.de
eMail: [email protected]


> -----Original Message-----
> From: Robert Muir [mailto:[email protected]]
> Sent: Wednesday, May 02, 2012 8:42 PM
> To: [email protected]
> Subject: Re: Help: SOLR-3430 and Build changes
> 
> On Wed, May 2, 2012 at 1:51 PM, Uwe Schindler <[email protected]> wrote:
> > One note:
> >
> > Derby is included since JDK 6 as "JavaDB" together with the JDK:
> > http://www.oracle.com/technetwork/java/javadb/overview/index.html
> >
> > As Lucene/Solr 4 will be using JDK 6 as minimum requirement (in contrast) to
> Solr 3.x (which was JDK 5), can we not simply rely on this version shipped 
> with
> JDK? That would make life easy. And for simple tests that version should be
> enough...
> >
> 
> But we dont require *oracle*s implementation as a minimum requirement.
> we also support IBM etc too?
> 
> --
> lucidimagination.com
> 
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