How to return sdo_geometry from java procedure

How can I return a SDO_GEOMETRY object from a java-stored-procedure to PL/SQL.
I have a java class with methods that creates a specific polygon based on some user values. I want to return this polygon as a SDO_GEOMETRY object to a PL/SQL procedure.
JDeveloper does not accept SDO_GEOMETRY as a return type.
Can this be done?

Justin,
I have a PL/SQL package that contains several functions. One of them does selection and filtering of spatial features based on a user's location and preferences. For this purpose a web-application runs this function.
I would like this function to do the following:
1. the function is called, user parameters are passed in
2. a call to a java-stored-procedure is made. This java procedure creates a polygon based on the user's location and preferences.
3. the polygon is returned to the PL/SQL function
4. the funtion uses the returned polygon to query spatial features that intersect, etc.
I can do the call to the java-stored-procedure but where I get stuck is how to get the polygon from java to pl/sql. I can return a String or a number from java but how can I return the polygon (e.g., STRUCT, java object)?
The current solution uses a work-around by storing the polygon in a temporary table. I would like to change this because once the function has run, the polygon is not needed anymore so I would like to do without having to store the polygon.
Markus

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