How to modify and update a line later was inserted and updated in the doDML() method?

Mr President

Jdev worm is 12.2.1

How to modify and update a line later was inserted and updated in the doDML() method?

I added two rows in my table a method of action-listener in bean managed and secondly with operation doDML() as below.

Method 1-first row in managed bean

    public void addNewPurchaseVoucher(ActionEvent actionEvent) {
        // Add event code here...
        BindingContainer bindings = BindingContext.getCurrent().getCurrentBindingsEntry();        
        DCIteratorBinding dciter = (DCIteratorBinding) bindings.get("VoucherView1Iterator");        
        RowSetIterator rsi = dciter.getRowSetIterator();        
        Row lastRow = rsi.last();        
        int lastRowIndex = rsi.getRangeIndexOf(lastRow);        
        Row newRow = rsi.createRow();        
        newRow.setNewRowState(Row.STATUS_NEW);        
        rsi.insertRowAtRangeIndex(lastRowIndex +1, newRow);         
        rsi.setCurrentRow(newRow);
        
        BindingContainer bindings1 = BindingContext.getCurrent().getCurrentBindingsEntry();        
        DCIteratorBinding dciter1 = (DCIteratorBinding) bindings1.get("VdetView1Iterator");        
        RowSetIterator rsi1 = dciter1.getRowSetIterator();        
        Row lastRow1 = rsi1.last();        
        int lastRowIndex1 = rsi1.getRangeIndexOf(lastRow1);        
        Row newRow1 = rsi1.createRow();        
        newRow1.setNewRowState(Row.STATUS_NEW);        
        rsi1.insertRowAtRangeIndex(lastRowIndex1 +1, newRow1);         
        rsi1.setCurrentRow(newRow1); 
        
        
    }


Method of doDML() of line 2 seconds in the entityImpl class


    protected void doDML(int operation, TransactionEvent e) {        
        setAmount(getPurqty().multiply(getUnitpurprice()));
       
        if (operation == DML_INSERT)  
                   {          
                     insertSecondRowInDatabase(getVid(),getLineitem(),getDebitst(),
    (getPurqty().multiply(getUnitpurprice()).multiply(getStaxrate())).divide(100));  
                       }
                       
                       if(operation == DML_UPDATE)
                       {
                           
                       updateSecondRowInDatabase(getVid(),getLineitem(),getDebitst(),
    (getPurqty().multiply(getUnitpurprice()).multiply(getStaxrate())).divide(100));                        
                       }                                       
        super.doDML(operation, e);
    }

    private void insertSecondRowInDatabase(Object value1, Object value2, Object value3, Object value4)  
              {  
                PreparedStatement stat = null;  
                try  
                {  
                  String sql = "Insert into vdet (VID,LINEITEM,DEBITST,AMOUNT) values 
   ('" + value1 + "','" + value2 + "','" + value3 + "','" + value4 + "')";  
                  System.out.println("sql= " + sql);    
                  stat = getDBTransaction().createPreparedStatement(sql, 1);  
                  stat.executeUpdate();  
                }  
                catch (Exception e)  
                {  
                  e.printStackTrace();  
                }  
                finally  
                {  
                  try  
                  {  
                    stat.close();  
                  }  
                  catch (Exception e)  
                  {  
                    e.printStackTrace();  
                  }  
                }  
              }  
              
              private void updateSecondRowInDatabase(Object value1, Object value2, Object value3, Object value4)  
              {  
                PreparedStatement stat = null;  
                try  
                {  
                  String sql = "update vdet set vid='"+ value1+"',lineitem='"+ value2+"',DEBITST='" 
   + value3 + "', AMOUNT='" + value4 + "' where VID='" + VID + "'";  
                  System.out.println("sql= " + sql);      
                  stat = getDBTransaction().createPreparedStatement(sql, 1);  
                  stat.executeUpdate();  
                }  
                catch (Exception e)  
                {  
                  e.printStackTrace();  
                }  
                finally  
                {  
                  try  
                  {  
                    stat.close();  
                  }  
                  catch (Exception e)  
                  {  
                    e.printStackTrace();  
                  }  
                }  
              }

Now the problem is that when later I change the quantity and price of the first line isn't updated but second row, because I used the command

 <af:button actionListener="#{bindings.Commit.execute}" text="Commit"

This button update the first line added by bean managed, but the second row remains unchanged.

Please help how to update the two lines with the same button or something else.

Concerning

DML_UPDATE will call only if there is some change data attributes.

I guess that the update statement is false because vid looks like a primary key for the table, then, how update you the primary key of the update statement and how the update condition statement where the vid = '0'

I assume the update statement should look like:

  private void updateSecondRowInDatabase(Object value1, Object value2, Object value3, Object value4)
  {
    PreparedStatement stat = null;
    try
    {
      String sql =
        "update vdet set lineitem='" + value2 + "',DEBITST='" + value3 + "', AMOUNT='" + value4 +
        "' where VID='" + value1 + "'";
      System.out.println("sql= " + sql);
      stat = getDBTransaction().createPreparedStatement(sql, 1);
      stat.executeUpdate();
    }
    catch (Exception e)
    {
      e.printStackTrace();
    }
    finally
    {
      try
      {
        stat.close();
      }
      catch (Exception e)
      {
        e.printStackTrace();
      }
    }
  }

Tags: Java

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