Value has to be entered for an optional parameter for WS

Question

Hi,
I have created a webservice from a PL/SQL package using the below tutorial.
http://st-curriculum.oracle.com/obe/jdev/obe1013jdev/10131/wsfromplsqlpackage/devwsfrom%20plsql.htm
I wrote my package to get the user status from fnd_user table. The package/procedure cannot get simpler than this. There are 2 input parameters (optional) and 1 output parameter. I am able to call this pkg-proc from SQL Plus and everything works fine. I can pass either of the 2 input parameters and the procedure returns the correct information depending upon what is passed. However when I exposed this as a web service, and if I do not pass the user id parameter, I get "Caught exception while handling request: deserialization error: java.lang.NumberFormatException: For input string: """ error. I tried nillable="true" and minOccurs="0" for user id but still it seems the web service is forcing me to enter the value for user id parameter. The other way works i.e. if user name is left blank.
If I change the data type for the 1st parameter (p_user_id) to varchar2, then the WS returns proper info. Seems like nillable="true" works for string (varchar2) datatype but not for integer or number.
Any help will be truly appreciated. Thanks.
CREATE OR REPLACE package xxcc_ws is
  procedure Get_User_Status (
     p_user_id                      IN  INTEGER  DEFAULT 0
    ,p_user_name                    IN  VARCHAR2 DEFAULT NULL
    ,p_ret_msg                      OUT VARCHAR2
END xxcc_ws;
CREATE OR REPLACE package body xxcc_ws is
  procedure Get_User_Status (
     p_user_id                      IN  INTEGER  DEFAULT 0
    ,p_user_name                    IN  VARCHAR2 DEFAULT NULL
    ,p_ret_msg                      OUT VARCHAR2
  ) is
    lr_fu_rec       apps.fnd_user%ROWTYPE;
  begin
    select *
    into   lr_fu_rec
    from   apps.fnd_user
    where  user_id = nvl(p_user_id, user_id)
    and    user_name = nvl(p_user_name, user_name);
    -- warn if the person is end dated
    if lr_fu_rec.end_date is not null then
      p_ret_msg       := 'WARNING:Person is end dated as of '||to_char(lr_fu_rec.end_date,'mm/dd/yyyy');
    else
      p_ret_msg       := 'SUCCESS:'||lr_fu_rec.employee_id||':'||lr_fu_rec.email_address;
    end if;
    return;
  exception
    when others then
      p_ret_msg      := 'ERROR:'||sqlerrm;
      return;
  end Get_User_Status;
END xxcc_ws;
/Edited by: user13163442 on Nov 8, 2010 8:29 AM

Answer 1

Hi
I have tried pl/sql package via SOA gateway and it worked.