ABAP code in to JAVA for overwritting condition value for IPC pricing

Question

Dear experts i am an IPC JAVA developer and i am trying to translate an ABAP Routine in to JAVA code for overwriting condition value in the pricing user exit of IPC
Here is the ABAPcode segment i am trying to transulate
  DATA: l_kdkg1  LIKE komk-kdkg1,
        l_work TYPE f,
        l_umren LIKE marm-umren,
        l_umrez LIKE marm-umrez.
  SELECT SINGLE peinh FROM mbew INTO mbew-peinh         
  WHERE matnr = komp-matnr
  AND bwkey = komp-werks.
  I need some  help in the following things
  1. I don't know how to transulate the following Line of ABAP code into JAVA
     " AND bwkey = komp-werks."
Bwkey stands for plant details. I don't know how to get plant details from  Pricing Item.
  2. Someone please tell me weather the following JAVA transulation is correct
  Vector x = prItem.getUserExitConditions();
  db database = pricingEngine.getDatabase();
     // set table name
  String tableStart = "mbew";                                             
     // set query parameters
  sys_query_pair[] queryPair = null;
  //matnr = komp-matnr . Getting the material Number
  String materialNo= prItem.getProduct().toString();
  //bwkey = komp-werks.Getting plant.
  // TODO: werks stands for plant. Not sure how to get it from prItem
   String plant = "";
   queryPair = new sys_query_pair[2];                    
   queryPair[0] = new sys_query_pair("matnr", materialNo);
   queryPair[1] = new sys_query_pair("bwkey", plant);
  // set query columns
   String ZZFIELDStart = "peinh";
   String ZZFIELD_VALUEStart;                   
   String[] projectionStart;
   projectionStart = new String[];
   BigDecimal pricingUnit = null;
   try{     
      // execute query
      res resultSetStart = database.db_read_table(tableStart, queryPair,projectionStart) ;
      if (!res.db_empty_results_p(resultSetStart))
     ZZFIELD_VALUEStart = resultSetStart.db_get_row_element_string(0);
     pricingUnit = new BigDecimal(ZZFIELD_VALUEStart);
     resultSetStart.db_finish();
   else
     System.out.println("Coudn't find a value of field peinh in table mbew!");
   catch (exc_database_error e)
     e.printStackTrace();

Answer 1

Please login to the server where IPC is installed. In the IPC folder u find libs folder  or search for docs in IPC folder. There it is dealt how ABAP routines are mapped to  user exits in java coding
Thanks
Surya