news.eclipse.technology.dali

[news.eclipse.technology.dali] Need your criticism

sergey@xxxxxxx (sergey ) — Fri, 26 Jun 2009 06:01:52 GMT

I have developed und uploaded to https://sourceforge.net/projects/datascooter/ and to http://datascooter.org/ my new ORM system and want to obtain criticism and advices. System mapping is based on the eclipse extension points - it is easier to fill standart eclipse extension point editor than handly write XML tags. There are features for working with data structures as one object - select, delete and insert by one call, for transferring Objects between databases without instantiation and so on... May be my experience will come in useful for some other projects...

[news.eclipse.technology.dali] Dali 2.2 (Galileo) is now available!

neil.hauge@xxxxxxx (Neil Hauge) — Wed, 24 Jun 2009 13:47:26 GMT

Dali 2.2 (a part of Eclipse Galileo) is now officially available for download!

For details, see the website - http://www.eclipse.org/webtools/dali/.

Download the Java EE Galileo Pacakge - http://www.eclipse.org/galileo.

Or add Dali 2.2 to your Eclipse SDK from one of the following software sites:

Galileo - http://download.eclipse.org/releases/galileo
WTP - http://download.eclipse.org/webtools/updates/

Dali 2.2 adds new features and many bug fixes, including: - new and improved Entity Generation - broad support for mapping binary content from JAR's, the project classpath, or plugins - better persistence library management - table per concrete class inheritance support - additional EclipseLink support - new EclipseLink 1.1.x Platform - support for new joining capabilities

See the new and noteworthy for more info (covers changes from Ganymede to Galileo)

http://eclipse.org/webtools/releases/3.1.0/newandnoteworthy/jpa.php

Thanks to everyone who contributed to this release!


Neil Hauge
Dali JPA Tools Project Lead
Oracle

[news.eclipse.technology.dali] Re: Validating inner classes marked with @Embeddable

suresk@xxxxxxx (Spencer Uresk) — Fri, 12 Jun 2009 19:25:15 GMT

Sorry, I somehow missed that bug report when I was looking earlier.

Thank you for the information.

- Spencer

[news.eclipse.technology.dali] Re: Validating inner classes marked with @Embeddable

neil.hauge@xxxxxxx (Neil Hauge) — Fri, 12 Jun 2009 16:00:29 GMT

This is indeed a bug, which has actually been addressed for our next release - Dali 2.2 and part of WTP 3.1 (Galileo). This will be officially released at the end of this month, but Release Candidate builds are currently available.

https://bugs.eclipse.org/bugs/show_bug.cgi?id=235428

Neil

[news.eclipse.technology.dali] Validating inner classes marked with @Embeddable

suresk@xxxxxxx (Spencer Uresk) — Thu, 11 Jun 2009 21:22:15 GMT

I'm running into a minor issue with Dali's validation, and I'm wondering if this is a bug that I need to file, or if it is just an unfortunate disconnect between Dali and EclipseLink that I don't understand.

Bascially, I have a class that looks like this:

@Entity
public class A {

@EmbeddedId
private A.B pk;

@Embeddable
public static class PK {}

My mappings in my persistence.xml look like this:

A
A$B

EclipseLink is happy and everything works fine. However, I get 2 validation errors:

- Class "A" cannot be resolved (in persistence.xml)
- This mapped class is not specified in the persistence unit (in A.java)

Switching my second entry in persistence.xml to read:

A.B

makes Dali happy and causes both validations to go away, but then EclipseLink fails when creating an EMF with the error ClassNotFoundException: A.B. This makes sense since A.B is not a class, but A$B is.

So, it looks as though Dali isn't validating inner classes properly. Further, when I add a class via the "General" tab when editing persistence.xml, it creates the entry with a dot instead of dollar sign. I believe it also does it this way when you generate entities from your data source.

It seems like this is a bug, but I am not 100% sure and wanted to get some feedback before logging it as one. Does anyone have any thoughts on this?

Thanks.

[news.eclipse.technology.dali] Re: Extensibility of new entity gen wizard?

neil.hauge@xxxxxxx (Neil Hauge) — Fri, 29 May 2009 21:20:57 GMT

We currently don't have a public extension for this use case. The only workaround is discussed in bug 175177 - https://bugs.eclipse.org/bugs/show_bug.cgi?id=175177.

I will make sure that this item is discussed at our next planning meeting, tentatively scheduled for mid-July.

Neil

Leonard Theivendra wrote:

Hi, is there a way for adopter code to hook into the operation of the entity gen wizard for example by being able to examine the DTP model of the tables/columns and then inject custom annotations/etc into the generated entity?

The new entity gen wizard doesn't appear to be a WTP data model wizard where this sort of thing is easily facilitated. Any input would be appreciated.

[news.eclipse.technology.dali] Extensibility of new entity gen wizard?

theivend@xxxxxxx (Leonard Theivendra) — Thu, 28 May 2009 19:27:14 GMT

Hi, is there a way for adopter code to hook into the operation of the entity gen wizard for example by being able to examine the DTP model of the tables/columns and then inject custom annotations/etc into the generated entity?

The new entity gen wizard doesn't appear to be a WTP data model wizard where this sort of thing is easily facilitated. Any input would be appreciated.

[news.eclipse.technology.dali] Re: Question about executing JPQL?

max.andersen@xxxxxxx (Max Rydahl Andersen) — Fri, 15 May 2009 05:05:16 GMT

Hi,

Until Dali gets a generic JPAQL editor you can try out Hibernate Tools works with Dali and provides a HQL/JPAQL query editor which users Hibernate to execute the queries.

You can get it from http://tools.hibernate.org or http://jboss.org/tools

/max

kiril mitov wrote:

Hi,

I am looking for a tool where I could execute JPQL statements. I think
currently there is no such feature in Dali? I also could not found a
feature request in bugzilla. A quick google on the subject showed that
there are not many results for "execute JPQL dali" or "jpql eclipse" and
that`s the reason for this posting. A search for "jpql dtp" leads to
http://dev.eclipse.org/newslists/news.eclipse.dtp/msg01335.html.

Do you think that community will be interested in such a tool integrated
with Dali and DTP? Has anyone tried implementing something of this sort?
If there is an interest I would definitely open a bug for tracking this
feature request. Do you think this would be more "Dali" related of "DTP"
related?

Best Regards,
Kiril

[news.eclipse.technology.dali] EclipseCon 09: Building your First JPA Application with Dali JPA Tools

neil.hauge@xxxxxxx (Neil Hauge) — Thu, 14 May 2009 18:35:57 GMT

Eclipse Live is hosting a live (audio/video) recording of the most recent Dali session from EclipseCon 09. The session includes a brief JPA introduction and a a ~30 minute Dali demo (using Dali 2.2 M6).

EclipseCon 09: Building your First JPA Application with Dali JPA Tools

http://live.eclipse.org/node/709

Neil

[news.eclipse.technology.dali] Re: Generate Entities from Tables not working

neil.hauge@xxxxxxx (Neil Hauge) — Wed, 13 May 2009 16:50:48 GMT

Hi Bill,

Lets see if we can figure this out. Take a look at the constructor for org.eclipse.jpt.db.internal.DTPDatabaseWrapper. The last line of the constructor is an attempt to resolve the vendor that we are working with. Put a breakpoint in this constructor and let me know what Vendor you are ending up with.

This first bit of information will let us know if we are starting off in the right direction. If you are ending up with an UnrecognizedVendor, let me know what is being returned from "this.getVendorName()".

Neil

Bill Blalock wrote:

Neil and all:

This problem for DB2 on i5 (iSeries aka AS400) continues in Galileo M6 (JEE package).

I would like to assist in correcting the problem but I need help in determining where I should look, what to debug.

My prior post describes the problem Dali has finding schemas and tables within schemas for the i5/JTOpen drivers.

This is very frustrating because Dali validation and generating entities from tables works so well ... if I happen to be working with one schema that happens to have the same name as the user profile that the connection uses.

Thanks for all your hard work!

Bill Blalock