Create a new operation named Read that uses the book entry point.
Create a COBOL Assignment for the lnk-function field and set its value to 1. This is the value that instructs the program to read a record.
Create an interface field named lnk_file_status from the COBOL Entry Point field lnk-file-status; then set its direction to Output.
The program functionality that reads a record gets the required record from the data file and returns it. Therefore, we need a set of output fields in which to return the fields of this record.
Drag lnk-b-details from the COBOL Entry Point pane to the Interface Fields pane.
Change the name of the lnk_b_details interface field to readop_details.
Expand the tree for readop_details and change the type of lnk_b_retail from BigDecimal to int.
