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| Re: Project without annotaions in the model classes [message #435497 is a reply to message #435472] |
Tue, 17 March 2009 22:26   |
 Heiko Ahlig
Messages: 62
Registered: July 2009 |
Member |
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Hi Karen,
thanks for your answer, today I found out your answer by myself while
playing with the framework, and some minutes later I see your answer. :)
But now I have the next problems.
- First, if I use the eclipselink-orm.xml instead of the standard
orm-xml, I get an error in eclipse. This I have reported under:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=269102
- Second, I think this is only a problem again at myself:
In my eclipse trainings and also if I show at some more complex
examples, I see that mostly the model classes are in a seperate
java-projects or plugins.
My first solution approach (doesnt work):
To try this pratice I generate a simple plugin, add here my
model-classes and export this package.
Next I generate a JPA-project, convert it to a plugin-project and import
the model-plugin.
Try to build my mapping - here I can add the classes to the orm -file
with "Add class ..." but than the orm-file shows an erre with: "class
xyz cannot be resolved" and the fields arn't visible in the
JPA-structe-view. :(
(I tryed the import with import the model-project as project and also
import the package)
My second solution approach (it works):
I generate a JPA - project, convert it into a plugin-project, build my
model - classes and mapping.
Generate an other plugin-project, where I will work with this classes
and the EclipseLink-system.
Create in this plugin my META-INF - folder and copy the persistence.xml
and orm.xml from the first plugin to this META-INF.
This work but isn't really good solution.
Exists for the also an better solution?
Thanks again,
Heiko
Am 16.03.2009 18:40, schrieb Karen Butzke:
>> Is it possible to create a JPA project and a mapping without annotions
>> in the model classes and only in the persistence or
>> eclipselink-orm.xml file?
>> When yes, which swith / option I have to use for this?
>
> Yes, it is possible to edit your mappings via the orm.xml or
> eclipselink-orm.xml instead of using annotations. Dali does not yet
> support entity generation into an orm.xml file, only annotations. But
> you can create a new eclipselink-orm.xml file (choose New -> EclipseLink
> Mapping File) and then open it in the JPA perspective and you will
> notice the JPA details view and JPA structure view. In the JPA structure
> view just right click on the Entity Mappings and choose to 'Add
> class...'. Then you can edit all of the mapping information using the
> JPA details/structure views. You will see all of the attribute mapping
> defaults from the java in the structure view. You can right-click on
> these add them to the xml and then edit them in the JPA details view.
> Hope this helps!
>
> Karen
>
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| Re: Project without annotaions in the model classes [message #614945 is a reply to message #435472] |
Tue, 17 March 2009 22:26 |
Heiko Ahlig
Messages: 62
Registered: July 2009 |
Member |
|
|
Hi Karen,
thanks for your answer, today I found out your answer by myself while
playing with the framework, and some minutes later I see your answer. :)
But now I have the next problems.
- First, if I use the eclipselink-orm.xml instead of the standard
orm-xml, I get an error in eclipse. This I have reported under:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=269102
- Second, I think this is only a problem again at myself:
In my eclipse trainings and also if I show at some more complex
examples, I see that mostly the model classes are in a seperate
java-projects or plugins.
My first solution approach (doesnt work):
To try this pratice I generate a simple plugin, add here my
model-classes and export this package.
Next I generate a JPA-project, convert it to a plugin-project and import
the model-plugin.
Try to build my mapping - here I can add the classes to the orm -file
with "Add class ..." but than the orm-file shows an erre with: "class
xyz cannot be resolved" and the fields arn't visible in the
JPA-structe-view. :(
(I tryed the import with import the model-project as project and also
import the package)
My second solution approach (it works):
I generate a JPA - project, convert it into a plugin-project, build my
model - classes and mapping.
Generate an other plugin-project, where I will work with this classes
and the EclipseLink-system.
Create in this plugin my META-INF - folder and copy the persistence.xml
and orm.xml from the first plugin to this META-INF.
This work but isn't really good solution.
Exists for the also an better solution?
Thanks again,
Heiko
Am 16.03.2009 18:40, schrieb Karen Butzke:
>> Is it possible to create a JPA project and a mapping without annotions
>> in the model classes and only in the persistence or
>> eclipselink-orm.xml file?
>> When yes, which swith / option I have to use for this?
>
> Yes, it is possible to edit your mappings via the orm.xml or
> eclipselink-orm.xml instead of using annotations. Dali does not yet
> support entity generation into an orm.xml file, only annotations. But
> you can create a new eclipselink-orm.xml file (choose New -> EclipseLink
> Mapping File) and then open it in the JPA perspective and you will
> notice the JPA details view and JPA structure view. In the JPA structure
> view just right click on the Entity Mappings and choose to 'Add
> class...'. Then you can edit all of the mapping information using the
> JPA details/structure views. You will see all of the attribute mapping
> defaults from the java in the structure view. You can right-click on
> these add them to the xml and then edit them in the JPA details view.
> Hope this helps!
>
> Karen
>
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