Conversion of Char database fields to Date Object view attributes

Hello,
I would like to transform all date values of data type CHAR(10) in an oracle database (formatted like this : "YYYY/MM/DD") to oracle.jbo.domain.Date fields.
For the moment the better idea I have found is :
- add transcient entity attributes (type oracle.jbo.domain.Date) for each persistent attributes (type oracle.jbo.domain.Char) representig a date field in each Entity object of my application.
- in the java code of the Getter and Setter method of those transcient attributes, I call a method which transform a value of type "oracle.jbo.domain.Char" to a
"oracle.jbo.domain.Date" (for the Getter), and an other method which transform a value of type "oracle.jbo.domain.Date" to a
"oracle.jbo.domain.Char" (for the Setter)
The aim of these transformations is to retrieve those transient attributes of oracle.jbo.domain.Date type in my web application in order to easily associate them to adf "input date" components : what I have undersand is that this "input date"component is waiting for a "Date" type in input to work properly.
But I find that it is a lot of work to do. I have maybe 100 database fields concerned by those conversions.
Does it exist something in the Adf framework between the database and the "adf entity objects", or between the "adf entity objects" and the "adf view objects", where I can declare to make these transformation for all my database pseudo date fields : something like a class-converter in the adf web framework where I can say, for example, to execute some methods in order to transforms the concerned data in two directions : "Char to Date" and "Date to Char".
Thanks for your help.

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