How to use the Public Java API

Is it possible to use the Public Java API to write a custom transformation in Java and use this in OWB. i.e. Say I have a Dateofbirth field in my source database and an Agegroup field in the target database, and I write a transformation in Java to take the Dateofbirth as an input parameter to the method and calculate the Agegroup e.g. 25-30, and return it from this method which then populates the Agegroup field in the target database. If so, how do I go about this?

Martin,
In general, yes you could... but you do not need to. You could use the UI to implement this requirement. The public Java API is there for you to manipulate metadata. How you implement your system, is independent of that.
The way you would go about the case you just mentioned... you would write the Java code, deploy it into the database, wrap it in a PL/SQL procedure or function, and call it from OWB.
Would this be a good idea...? I think no. Unless you have very complicated calculations that can only be performed in Java, I strongly encourage you use the PL/SQL language. Reason being: transformation will be much faster, because there is no need to translate PL/SQL into Java and back again.
Hope this helps,
Mark.

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