db-ojb-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Martin Taal (JIRA)" <j...@apache.org>
Subject [jira] Created: (OJB-24) Feature Request: enumerates and field conversions
Date Mon, 18 Apr 2005 10:47:45 GMT
Feature Request: enumerates and field conversions
-------------------------------------------------

         Key: OJB-24
         URL: http://issues.apache.org/jira/browse/OJB-24
     Project: OJB
        Type: New Feature
  Components: PB-API  
    Versions: 1.1 CVS    
    Reporter: Martin Taal
    Priority: Minor


Hi,
In my model I have enumerates which are represented as a java object in memory. An enumerate
java object has an int and a String value. When the owner object is persisted I want to convert
the enumerate object to either the int or the string and store it in a field. When the owner
object is retrieved then the primitive type database field should be translated into the enumerate
object.

It seems logical to use fieldconversions to achieve this, however the field conversion interface
only passes the value from the database and from this database value it can not be determined
which Enumerate object should be created. This is so because different enumeratetypes can
have the same value (with a different meaning). To identify which enumerate object should
be created the fieldconversion interface could be extended so that also the field descriptor
is passed.

This is really just a very-low-priority-nice-to-have because there are many workarounds, e.g.
store the enumerate class in the field also (etc.). But maybe somebody else also requires
it or this has come-up earlier or maybe field conversions are looked at anyhow for a new larger
release.

gr. Martin Taal


-- 
This message is automatically generated by JIRA.
-
If you think it was sent incorrectly contact one of the administrators:
   http://issues.apache.org/jira/secure/Administrators.jspa
-
For more information on JIRA, see:
   http://www.atlassian.com/software/jira


---------------------------------------------------------------------
To unsubscribe, e-mail: ojb-dev-unsubscribe@db.apache.org
For additional commands, e-mail: ojb-dev-help@db.apache.org


Mime
View raw message