[ http://issues.apache.org/jira/browse/OJB-24?page=all ]
Thomas Dudziak reassigned OJB-24:
---------------------------------
Assign To: Thomas Dudziak
> 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
> Assignee: Thomas Dudziak
> Priority: Minor
> Attachments: EMFEnumerationConverter.java
>
> 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
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