[Middlegen-user] Sequence problem.

[John Woolsey]

I am trying to deploy a second middlegen ejb to the same JBoss server
and I get the error:

org.jboss.deployment.DeploymentException: Sequence: Duplicate
abstract-schema name 'Sequence'. Already defined for Entity 'Sequence'.

Is this something I did or is deploying two middlegens to the same
server not supported? They are accessing two different databases.

Also if anyone cares I just wanted the EJBs so I fixed up the
dependencies in the Ant file so you could simply build the CMP stuff
without building struts and the like.

- bfn - JAW

[John Woolsey]

I just got further, but now the error is more obvious. It is claiming I
have created two Sequence objects of the same name.

javax.management.InstanceAlreadyExistsException:
jboss.j2ee:jndiName=middlegen.sequencegenerator.ejb.SequenceLocalHome,service=EJB
already registered.

Is there any way to fix the problem? I orginally tried to use the
autoincrement feature of mysql but then middlegen didn't seem to work at
all. Suggestions would be appreciated.

BTW Middlegen is a great product. It really took the work out of CMP.

- bfn - JAW

[Eivind Waaler]

Have you tried the jndiprefix attribute on the sequenceblock subtask of
the cmp20 task?

http://boss.bekk.no/boss/middlegen/plugins/cmp20.html#sequenceblock

Seems like the problem is that both sequence beans get the same jndi name.
Might be a bug if the jndiprefix attribute doesn't solve it..

.eivind

Post by John Woolsey
I just got further, but now the error is more obvious. It is claiming I
have created two Sequence objects of the same name.
jboss.j2ee:jndiName=middlegen.sequencegenerator.ejb.SequenceLocalHome,service=EJB
already registered.
Is there any way to fix the problem? I orginally tried to use the
autoincrement feature of mysql but then middlegen didn't seem to work at
all. Suggestions would be appreciated.
BTW Middlegen is a great product. It really took the work out of CMP.
- bfn - JAW
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[John Woolsey]

I'd say it's probably a bug. I noticed that SequenceBlock and
SequenceSession both work fine. The jndiprefix is preset in the example
so I was using it already.

- bfn - JAW

public interface SequenceLocalHome
extends javax.ejb.EJBLocalHome
{
public static final String COMP_NAME="java:comp/env/ejb/Sequence";
public static final String
JNDI_NAME="middlegen.sequencegenerator.ejb.SequenceLocalHome";

public honour.interfaces.SequenceLocal create(java.lang.String param1)
throws javax.ejb.CreateException;

public honour.interfaces.SequenceLocal
findByPrimaryKey(java.lang.String pk)
throws javax.ejb.FinderException;

}

Post by Eivind Waaler
Have you tried the jndiprefix attribute on the sequenceblock subtask of
the cmp20 task?
http://boss.bekk.no/boss/middlegen/plugins/cmp20.html#sequenceblock
Seems like the problem is that both sequence beans get the same jndi name.
Might be a bug if the jndiprefix attribute doesn't solve it..
.eivind

Post by John Woolsey
I just got further, but now the error is more obvious. It is claiming I
have created two Sequence objects of the same name.
jboss.j2ee:jndiName=middlegen.sequencegenerator.ejb.SequenceLocalHome,service=EJB
already registered.
Is there any way to fix the problem? I orginally tried to use the
autoincrement feature of mysql but then middlegen didn't seem to work at
all. Suggestions would be appreciated.
BTW Middlegen is a great product. It really took the work out of CMP.
- bfn - JAW
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[John Woolsey]

I was wondering. I have a table map with X and Y on it. MiddleGen seems
to build out finders on every field for me, but what I really want is
x,y. Being smart (ok at least not totally dumb ;) I figured I will just
build an index x, y and middlegen will detect that and build a finder.
It didn't. Is there a way to force extra finders by configuring the
build script? I don't list tables in my build script if that makes a
difference. I figure the point of middlegen is being able to create a
database and have it do everything from there.

I really like the way Middlegen works BTW. Thanx for a great product.

- bfn - JAW

PS My sequence bug thing do I report that on SourceForge now?

[Eivind Waaler]

I think using merge files would do what you want:

http://boss.bekk.no/boss/middlegen/plugins/cmp20.html (bottom of page)

The airline sample that comes with Middlegen has some examples of using
merge files. Check out the cmp20_ro-persons-class-comments.txt file. Think
it does what you want for the persons table..

Report the bug in Jira, we're switching to using that instead:

http://jira.codehaus.org/secure/BrowseProject.jspa?id=10110

Regards
.eivind

Post by John Woolsey
I was wondering. I have a table map with X and Y on it. MiddleGen seems
to build out finders on every field for me, but what I really want is
x,y. Being smart (ok at least not totally dumb ;) I figured I will just
build an index x, y and middlegen will detect that and build a finder.
It didn't. Is there a way to force extra finders by configuring the
build script? I don't list tables in my build script if that makes a
difference. I figure the point of middlegen is being able to create a
database and have it do everything from there.
I really like the way Middlegen works BTW. Thanx for a great product.
- bfn - JAW
PS My sequence bug thing do I report that on SourceForge now?
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