Myrna van Lunteren wrote:
On Mon, Mar 16, 2009 at 7:05 AM, Tiago Espinha <[email protected]> wrote:
Knut Anders Hatlen wrote:
Tiago Espinha <[email protected]> writes:


Hey guys, I'm back.

Hi, and welcome back! :)


Perhaps some of you still remember me from last year. I applied to
GSoC on the Apache Derby project and unfortunately ended up not
getting picked. I still hanged around for a while but I ended up
leaving at some point. This year I'm back and I'm applying for GSoC
again :)

Right now I'm in a bit of a stalemate with an annoying issue that's
bothering me. I followed all the steps to build Derby's code and to do
the testing. I am able to build it now and I can also run derbyall
with no issues (or close to no issues since derbyall skipped
derbynetmats, jdbcapi and jdbc20). The problem that I am stuck with is
actually Eclipse-related.

I have sort of imported Derby into Eclipse and I am getting 1559
errors. With a quick glance through some of the errors, I notice that
some of them come from jdbc4 classes, like
LogicalCallableStatement40.java . On this one I get for example "The
method setRowId(int, RowId) is undefined for the type
CallableStatement" and many more errors.

I don't use Eclipse myself, so I don't know how you can fix it, but my
guess is that you have configured it to use Java 5 libraries, so that it
doesn't find some of the new methods in JDBC 4.0. The warning you see in
LogicalCallableStatement40 is because it contains a line which looks
like this:

   getPhysCs().setRowId(arg0, arg1);

getPhysCs()'s signature says that it returns a
java.sql.CallableStatement, but in Java 5 that class didn't have a
setRowId method and therefore you see the warning.

If you use the Java 6 libraries instead, this warning should go
away. Unfortunately, you'll probably get other warnings in the JDBC 3.0
classes instead. (Like complaints because the non-abstract class
LogicalCallableStatement implements java.sql.CallableStatement but
doesn't implement the setRowId method.)


Hi,

I think you are most likely correct about the Java 5 libraries, but the
weird thing is that the libraries are actually set for Java 6, so that
shouldn't be it. It doesn't matter anyway, I just switched over to Netbeans.
it should be less messy :)

Tiago

If you've switched to netbeans, this info may be like mustard after
the meal (sorry - non-English proverb, I hope it makes sense)...But
here is my 2 c:
You can actually set up eclipse to 'add' the libraries for the other
jdks. I have 3 jdks loaded in my eclipse source derby project.
However, the Derby build process is pretty complex - at least it used
to be - so I've configured eclipse to never build...(although I have
done a right click on the build.xml and built that way at some point
in the past). Normally I build outisde eclipse and run within.

Myrna

Myrna
Hehe, mostard na de maaltijd, I have some dutch friends :)

Anyway, I don't think it is mustard after the meal. The truth is that the tutorial available on the wiki is for both Eclipse and Netbeans 6.0 . At this point we're on Netbeans 6.5 and as so, I'm running into some issues. So I may ultimately give up and end up rolling back to the initial Eclipse plan. Either way I think I'll update the wiki with my experience since that page (http://wiki.apache.org/db-derby/BuildingDerby) is already somewhat outdated.

I don't overly want to build within the IDE, but I want to have no errors, so Eclipse would work fine for the task.

Tiago

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