JDBC Receiver Stored Procedure with Parameter as array object

Hello Experts,

I have a scenario where I need to execute a Stored Procedure via JDBC receiver adapter. The property of the Stored Procedure is as follows,

1. It has 2 input and 1 output Parameters.

2. Input has following structure

     Header (1:1):

      -----------Field 1

      -----------Field 2

      -----------Field 3

     LineItem (1:1):

      --------------Item (0:n)

                    --------Field 3

                    --------Field 4

                    --------Field 5

3. Output is a simple field of type VARCHAR

I am seeking your help with the following queries,

a) Since the input parameters to the Stored Procedure is of complex type how to build the receiver JDBC XML structure?

b) Do I need to include Output parameter in the receiver JDBC XML structure?

c) What are all the limitations with PI on executing stored procedures.

I have gone through many blogs and discussions through google but couldn't find any solution for my case, please share your thoughts.

Thanks.