IPC Condition value formula to Java

Question

Hi all,
         I need code the next abap statement for a condition value formula to java in overwriteConditionValue method:
            form FRM_KONDI_WERT_903.
  data: L_XKOMV like XKOMV occurs 0 with header line.
  data: L_KAWRT like XKOMV-KAWRT.
  data: L_KMEIN like XKOMV-KMEIN.
  L_XKOMV[] = XKOMV[].
  read table L_XKOMV with key KOAID = 'B'
                              KHERK = 'A'
                              KSTEU = 'A'.
                             KINAK = 'Y'.
  L_KAWRT = L_XKOMV-KAWRT.
  L_KMEIN = L_XKOMV-KMEIN.
  if L_KAWRT ne 0.
    XKOMV-KBETR = KOMP-NETWR .
    XKOMV-KBETR = XKOMV-KBETR * 1000 / L_KAWRT.
    xkwert = XKOMV-KBETR * L_KAWRT / 1000.
   xkwert = xkwert / 10000.
  endif.
  XKOMV-KMEIN =  L_KMEIN.
  XKOMV-KAWRT =  L_KAWRT.
      But i don't know how translate "read table L_XKOMV with key KOAID = 'B'" to Java.
      Help me please!!

Answer 1

Hi David,
Here are some of the steps that may be of some help.
1. Define the query pair (parameter and value)
2. Set up the projection of the query result
3. Call the db engine for the db instance
4. Run the query and request the result set
5. Confirm the results
The sample here comes from the examples found in your IPC install directory:
/ipc/doc/spe/UserExitsExamples.html#ex1
The example uses the <u>addAttributeBindings</u> method of the <b>ItemsUserExit</b> to perform the following steps and then calls the <u>determineRelevantAttributesforValueFormula</u> of the <b>PricingUserExit</b> to collect these attributes.  Once available the <u>overwriteConditionValue</u> method is called.
Here is what I believe you'll need:
Make sure your user exit is importing the following class reference:
package userexits;
import com.sap.sxe.db.*;
Code:
// Declare the query pair array
   sys_query_pair[] queryPair = new sys_query_pair[3];
// Declare the projection to filter the result set
   String[] projection1;
//  Define the query pairs
    queryPair1[0] = new sys_query_pair("KOAID", "B");
    queryPair1[1] = new sys_query_pair("KOHERK", "A");
    queryPair1[2] = new sys_query_pair("KSTEU", "A");
//  Define the fields we want to read from table as the projection
    projection1 = new String[]{"KAWRT,KMEIN"};
//  This is the database access to table
    db _database = _engineUserExit.getDatabase();
    res resultSet = _database.db_read_table("XKOMV",
                                                    queryPair1,
                                                    projection1)
//  Check whether database access was successful
    if (!res.db_empty_results_p(resultSet)) {
//  If successful then assign field values
       l_kawrt = resultSet.db_get_row_element_string(0);
       l_mein  = resultSet.db_get_row_element_string(1);
    else {
       log_api.log_write_msg("SPE",
                                        "ItemUserExits",
                                         1,
                                        "Table Query of XKOMV Failed");
       return;