IDD User-Exit Program › When a User Exit Is Called

When a User Exit Is Called

The IDD user-exit module is called by the DDDL compiler when it encounters any of these four points:

• SIGNON/SIGNOFF/COMMIT

  After the signon procedure is complete and the compiler's security checks have been passed, or immediately after signoff or COMMIT processing.

• Major command

  After an ADD, MODIFY, REPLACE, DELETE, DISPLAY/PUNCH, INCLUDE/EXCLUDE, or REMOVE request has been issued. The program is invoked just after the DDDL compiler has identified the entity that is the object of the request and has successfully checked authorization requirements. Object entities can be any standard or user-defined entity type; any element, file, or record synonym, or any record element, COBOL element, or view.

• Card image

  After each input statement (card image) is passed to the user-exit control block after the statement has been:

  • Scanned and printed on the Integrated Data Dictionary Activity List
  • Displayed at the terminal
  • Written to the print file (online DDDL compiler interface only)

  The data administrator can build an audit trail of accesses and updates to the dictionary.

• End of converse

  When one of the following occurs, the user can perform a termination activity, such as a write-to-log:

  • The user presses ENTER during an online DDDL session
  • A batch run of the DDDL compiler processes a SIGNOFF statement
  • A batch run of the DDDL compiler detects an end-of-file condition.