5 messages in org.apache.jackrabbit.usersRe: mix:referenceable with OCM
FromSent OnAttachments
KaizerOct 4, 2007 4:00 am 
Felix MeschbergerOct 4, 2007 4:49 am 
Christophe LombartOct 4, 2007 5:33 am 
KaizerOct 4, 2007 9:31 pm 
Christophe LombartOct 5, 2007 12:26 am 
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Subject:Re: mix:referenceable with OCMActions...
From:Kaizer (Kaiz@mastek.com)
Date:Oct 4, 2007 9:31:33 pm
List:org.apache.jackrabbit.users

Thanks a lot! I had a look at the test cases and that helped! But i had a few general queries.. 1. What are the advantages of using referencing here? One can still persist "anotherContent" by specifying its attributes in the mapping.xml, so when should i consider using referencing? 2. As per the documentation of ReferenceBeanConverterImpl, modifications on the referenced bean attributes are ignored. Does this mean that after persisting, if "anotherContent" is modified, the reference in "myContent" will not reflect the changes?

Thanks.

Regards Kaizer

Christophe Lombart wrote:

There are also some converters (bean & collection) to manage referenceable nodes. We should explain more in some docs but you can check the unit tests in the first time.

For ex.

you have a class like :

Class MyContent AnotherContent anotherContent

anotherContent (a bean attribute) can be mapped into a REFERENCE property. In this case, the bean cannot be updated.

If I did it correctly :-), the differente possibilities are in the unit test ObjectContentManagerUuidTest. Check the object model and its mapping definition to get more idea on how to map.

On 10/4/07, Felix Meschberger <fmes@gmail.com> wrote:

Am Donnerstag, den 04.10.2007, 04:00 -0700 schrieb Kaizer:

I'm a little confused about how the mix:referenceable works in OCM. The uuid will be stored as an attribute in my class but how is the reference stored? I'd appreciate it if someone can explain with an example.

Not sure, whether I understand your question. The UUID is stored in the jcr:uuid property in the node and may be mapped to any field in your class. But you should consider that field read-only, as the repository manages the jcr:uuid property and won't let you change it (actually, OCM will not even try to write protected properties such as jcr:uuid).

If another node refers the mix:referenceable node, it stores that UUID in any property of type REFERENCE, which you may easily store in a String field.

Regards Felix

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