How can I call a hsqldb procedure from Java

Question

Hello,
I am trying to call from Java a stored procedure but I keep having exceptions!!!
In addition, I have no idea how I can get the result of the procedure !!!!
I have spent the whole day in Internet.... no luck!!
===============================================
I[b] java.lang.Exception: +updatejava.sql.SQLException: Unexpected token: # in statement [ call MODIFY_FIELD_SEPARATOR(#) ]
     at util.UtilBean.test_upd(UtilBean.java:369)
===============================================
The following procedures have been created and tested withing the database and there work.
- public static String manage_field_separator(String ifs)
-public static String manage_refresh_interval(int val)
The alias have been created:
CREATE ALIAS MODIFY_FIELD_SEPARATOR FOR "com.lucent.util.StoredProcedures.manage_field_separator";
CREATE ALIAS MODIFY_REFRESH_INTERVAL FOR "com.lucent.util.StoredProcedures.manage_frefresh_interval
My file.java contains the flollowing:
public String test_upd(String tableName, String paramValue)
                                     throws Exception
   String res="0";
   Connection conn=null;
   CallableStatement cs= null;
    try
      conn=DBConnection.DBConnect();
      String p="MODIFY_"+tableName.toUpperCase()+"("+paramValue+")";
      cs=conn.prepareCall( "{call "+p+"}");
     cs.execute();
       // Suppose to get the result res  of the function!!!!
    catch (SQLException e)
     exceptionMessage="+update"+e.toString();
     System.out.println("exceptionMessage="+exceptionMessage);
     throw new Exception(exceptionMessage);
    finally
      Statement stmt=null;
      DBConnection.closeConnection(conn,stmt);
    return res;
  }Obviously I am doing something wrong ..... but I don't know what!!!
Could you help me please?
THanks a lot!

Answer 1

Thanks for your quick response.
I need to construct the name of the procedure on the fly because I don't know the name of the table I need to modify until excecution time.
I have modified the code the following way but it still does not work!!!
I still get the exception:
java.lang.Exception: +updatejava.sql.SQLException: Unexpected token CALL, requires SELECT in statement [(call MODIFY_FIELD_SEPARATOR(?)}]
     at util.UtilBean.test_upd(UtilBean.java:380)
public String test_upd(String tableName, String paramValue)
                                     throws Exception
   String res="0";
   Connection conn=null;
   CallableStatement cs= null;
    try
      conn=DBConnection.DBConnect();
      cs=conn.prepareCall( "(call MODIFY_"+tableName.toUpperCase()+"(?)}");
     cs.setString( 1, paramValue);
     cs.execute();
       // Suppose to get the result res  of the function!!!!
    catch (SQLException e)
     exceptionMessage="+update"+e.toString();
     System.out.println("exceptionMessage="+exceptionMessage);
     throw new Exception(exceptionMessage);
    finally
      Statement stmt=null;
      DBConnection.closeConnection(conn,stmt);
    return res;
  }