Implementation of Determination: Derive Dependent Data Immediately After Modification

The following source code describes the ITEM_AMOUNT determination that is configured in the Derive dependent data immediately after modification pattern.

Syntax Syntax

METHOD /bobf/if_frw_determination~execute.

```
 DATA:
```

  lt_item_data    TYPE    bobf_t_ci_item.

  ls_item_data    TYPE REF TO bobf_s_ci_item,

```
 " clear exporting parameter CLEAR:
```
```
  eo_message
```
```
  et_failed_key.
```
```
 " read the instance data of the item
```
```
 io_read->retrieve(
```
```
  EXPORTING
```

   iv_node = if_ci_bopf_customer_invoi_c=>sc_node-item

```
   it_key = it_key
```
```
  IMPORTING
```
```
   et_data = lt_item_data ).
```
```
 " loop over all instances
```

 LOOP AT lt_item_data REFERENCE INTO ls_item_data.

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  " calculate new amount
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  ls_item_data->net_amount = ls_item_data->quantity * ls_item_data->price_amount.

```
  " update data
```
```
  io_modify->update(
```
```
   EXPORTING
```
```
    iv_node = is_ctx-node_key
```
```
    iv_key = ls_item_data->key
```
```
    is_data = ls_item_data ).
```
```
 ENDLOOP.
```
```
ENDMETHOD.
```

End of the code.

More Information

Pattern: Derive Dependent Data Immediately After Modification